Aussie Pumps Australian Pump Industries - Ferret
Aussie Pumps Australian Pump Industries - Ferret
Aussie Pumps Australian Pump Industries - Ferret
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500<br />
Who is Tsurumi ?<br />
, Established in 1924, Tsurumi is one of the world’s most experienced pump<br />
manufacturers<br />
, Tsurumi first started producing submersible pumps in 1953 and through an<br />
ongoing and extensive research and development programme, has produced<br />
many innovations in submersible pump design.<br />
, Tsurumi’s Kyoto Plant is the world’s most modern submersible pump<br />
manufacturing plant - total manufacturing capability: 1,000,000 units per<br />
year. Testing facilities with capability testing of large pumps up to 3.000 mm<br />
discharge bore.<br />
, Tsurumi produces more submersible pumps per year than any other<br />
submersible pump manufacturer in the world (500,000 units per year).<br />
, Tsurumi offers over 1800 different models of submersible pumps<br />
, Size range: 25 mm to 2250 mm<br />
Submersible sewage & industrial pumps<br />
, Power range: 0.15 kW to 300 kW<br />
, Flow range: 0.02 m 3/min to 330 m 3/min<br />
, Types of submersible pumps produced:<br />
Semi-Vortex, Vortex, Non Clog, Cutter, Mixed Flow, Axial Flow, Radial<br />
Flow, Contractor & Dewatering, Sewage & Wastewater, Aerators &<br />
Blowers, Decanting Units, Scum Skimmers.<br />
, Established dealer network in Europe, North and South America, Asia,<br />
Australia and parts of Africa.<br />
At Tsurumi there is only one level of quality - the best<br />
p 2
CONTENTS<br />
1. Introduction·········································································································································································· 2<br />
2. Comparison of Aeration System/Equipment·········································································································· 2<br />
3. Fluid to be Handled and Standard Specifications of TRN-series Aerators<br />
3-1 Fluid to be Handled ··············································································································································· 3<br />
3-2 Standard Specifications of TRN-series Aerators - 50Hz ····································································· 3<br />
3-3 Standard Specifications of TRN-series Aerators - 60Hz ····································································· 3<br />
4. Shape and Dimension of Aeration Tank<br />
4-1 Typical Convection Pattern································································································································ 4<br />
4-2 Shape of Aeration Tanks ····································································································································· 4<br />
4-3 Recommended Tank Dimensions (Standard) ······························································································· 4<br />
4-4 Notes to the Case that Two or More Aerators are to be installed in a Tank································ 5<br />
5. Aerator with Optional Stand or Draft Tube············································································································ 6<br />
5-1 Recommended Tank Dimensions (with Stand or Draft Tube)······························································· 6<br />
6. Oxygen Transfer Rate ····················································································································································· 7<br />
6-1 Oxygen Transfer Rate Test Result ·············································································································· 7<br />
6-2 Oxygen Transfer Rate vs. Water Depth Curve - 50Hz ······································································ 8<br />
6-3 Oxygen Transfer Rate vs. Water Depth Curve - 60Hz ····································································9<br />
7. Operation System<br />
7-1 Reduced Speed Operation by Variable Frequency Drive (VFD) ························································10<br />
7-1-1 Comparisons in the Method of Adjustment ······················································································10<br />
7-1-2 Comparisons in Adjustment Range (for reference only)······························································10<br />
7-1-3 Characteristics of Reduced Speed Operation by VFD (for reference only)························10<br />
7-2 Operation in combination with Blower··········································································································11<br />
7-2-1 Comparison against Other Deep Aeration Methods (in case the tank depth is 10m)·············11<br />
7-2-2 Equipment necessary for this Operation ···························································································12<br />
7-2-3 Operation························································································································································13<br />
7-2-4 Adjusting Procedure for Air Flow Rate (e.g. 200V, 50Hz)···························································13<br />
7-2-5 Selection Procedure (Example) ············································································································· 14<br />
7-2-6 Recommended Tank Dimensions (combination with blower)·····················································14<br />
7-2-7 Initially Targeted Operating Point of Blower and<br />
7-2-7 Operating Range of Aerator on Running Current (combination with blower - 50Hz) ··············15<br />
7-2-8 Initially Targeted Operating Point of Blower and<br />
7-2-7 Operating Range of Aerator on Running Current (combination with blower - 60Hz) ··············15<br />
7-2-9 Oxygen Transfer Rate vs. Air Flow Rate Curve (combination with blower - 50Hz)·················16<br />
7-2-10 Oxygen Transfer Rate vs. Air Flow Rate Curve (combination with blower - 60Hz)···············17<br />
7-2-11 Discharge Pressure of Blower vs. Air Flow Rate Curve (combination with blower - 50Hz)················ 18<br />
7-2-12 Discharge Pressure of Blower vs. Air Flow Rate Curve (combination with blower - 60Hz)················ 19<br />
8. About Noise········································································································································································· 20<br />
8-1 Measured Point and Condition··························································································································· 20<br />
8-2 Measured Sound Pressure Level Data··········································································································· 20<br />
1<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
1. Introduction<br />
The TRN aerator employs a special impeller that draws air by its self-aspiration force, and the air sucked down<br />
into the aerator is subjected to an air/water collision within the guide vane, and then this mixed air-water current<br />
is forcibly discharged through the discharge outlets. This aerator is excellent in durability by its unique “air seal”<br />
system and has a superior maintainability in spite of its simple structure.<br />
2. Comparison of Aeration System/Equipment<br />
Submersible<br />
Aerator<br />
(TRN-series)<br />
Air (Self-aspiration)<br />
aa<br />
Submersible Air<br />
Fine Bubble Aeration (✳)<br />
Mixer (TAR-series)<br />
(+ Rotary Blower,<br />
Line Aeration Method<br />
Full Aeration<br />
Method<br />
RSR) Plate Diffuser Tube Diffuser Plate Diffuser<br />
Air<br />
Holder<br />
General<br />
Description<br />
A special impeller<br />
for a self-aspiration<br />
force draws air<br />
without blower, and<br />
the air sucked down<br />
into the water is<br />
subjected to an<br />
air/water collision<br />
within the guide<br />
vane, and then<br />
With the combination<br />
of a blower,<br />
high-efficient oxygen<br />
transferring and<br />
mixing is possible by<br />
the high efficiency<br />
impeller and the<br />
four-direction<br />
discharge; This can<br />
It consists of<br />
plate-shape<br />
diffusers formed by<br />
uniformly sized<br />
ceramic particles or<br />
porous resin.<br />
It consists of<br />
cylindrical diffusers<br />
formed by uniformly<br />
sized ceramic<br />
particles or porous<br />
resin.<br />
It is formed by<br />
uniformly sized<br />
ceramic particles or<br />
by porous resin<br />
plates. It is<br />
smaller than the<br />
line aeration<br />
method diffusers,<br />
and the<br />
this mixed<br />
air-water current<br />
is forcibly<br />
discharged through<br />
the discharge<br />
outlets.<br />
be used for either<br />
anaerobic or aerobic<br />
treatment.<br />
bubbles are finer<br />
than the plate<br />
diffuser or tube<br />
diffuser.<br />
Material<br />
(Diffuser Part)<br />
Oxygen<br />
Transfer<br />
Stainless Steel<br />
(Impeller)<br />
Stainless Steel<br />
(Discharge Part of<br />
the Air-supply Pipe)<br />
Ceramic or<br />
Synthetic Resin<br />
Efficiency<br />
(Clean Water /<br />
Water Depth :<br />
5m)<br />
17 to 23% 20 to 30% 14 to 16% 20 to 32%<br />
Intermittent<br />
Operation<br />
Possible<br />
Impossible<br />
Need for a Unnecessary<br />
Blower or Air<br />
Piping<br />
(Air-inlet Pipe and<br />
Silencer needed)<br />
Necessary<br />
Overhaul<br />
Simple structure,<br />
same as the<br />
submersible pumps,<br />
makes it easy for<br />
When maintenance is<br />
required, it should be<br />
taken to the factory<br />
because of built-in<br />
Necessary to drain<br />
sewage water from<br />
the tank<br />
maintenance.<br />
It is possible to be<br />
reduction gears.<br />
Controllability<br />
controlled by a VFD<br />
to some extent.<br />
(See p.10 7-1.<br />
Reduced Speed<br />
Operation by VFD)<br />
Well-controllable<br />
no limit of air flow<br />
rate<br />
Highly efficient in<br />
Less Controllable<br />
Minimum air flow rate<br />
has been determined<br />
oxygen transfer rate<br />
Other<br />
Well-durability<br />
by the air seal<br />
per unit of electric<br />
power. Can be used<br />
for anaerobic<br />
aeration.<br />
Aging increase<br />
in pressure loss<br />
✳ Cited Reference: “Guideline and Manual for Planning and Design in Sewerage Systems (2001)” issued by Japan Sewerage Works<br />
Association<br />
(Oxygen transfer efficiencies of the TRN-series are those calculated from the oxygen transfer rate at 5 meter’s depth on the curves of<br />
6-2. and 6-3. “Oxygen Transfer Rate vs. Water Depth Curve” on pages 8 and 9 and the inhaled air flow rate, for the models that have the<br />
maximum water depth of 6 meters.)<br />
2<br />
Air<br />
Diffuse<br />
Air<br />
Air<br />
Air<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500<br />
Air
3. Fluid to be Handled and Standard Specifications of TRN-series Aerators<br />
■ 3-1. Fluid to be Handled<br />
Type of Liquid<br />
Temperature<br />
[ o C]<br />
Liquid to be Handled<br />
Chlorine Ion<br />
pH<br />
Concentration<br />
[mg/l]<br />
3<br />
Electrical Conductivity<br />
[μS/cm]<br />
Wastewater & sewage 0 to 40 5 to 9 Below 1000 Below 1000<br />
Caution<br />
■ 3-2. Standard Specifications of TRN-series Aerators - 50Hz<br />
Air-<br />
inlet<br />
Bore<br />
[mm]<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Starting<br />
Method<br />
Max<br />
Water<br />
Depth<br />
(MWD)<br />
[m]<br />
Air<br />
Flow Rate<br />
- MWD<br />
[m 3 /h]-[m]<br />
No. of<br />
Outlets<br />
Impeller<br />
Passage<br />
[mm]<br />
Mass<br />
(Weight)<br />
[kg]<br />
Material<br />
Gas to be Handled<br />
(Suction through<br />
the air-inlet pipe)<br />
Should not be<br />
inflammable,<br />
corrosive, or toxic<br />
Cabtyre Cable<br />
32<br />
32TRN2.75-52<br />
32TRN21.5-52<br />
0.75<br />
1.5<br />
D.O.L<br />
D.O.L<br />
3.5<br />
3.5<br />
7 – 3.5<br />
20 – 3.5<br />
6<br />
6<br />
10<br />
12<br />
55<br />
55<br />
PVC<br />
PVC<br />
4x 1.25<br />
4x 1.25<br />
11.1<br />
11.1<br />
6<br />
6<br />
50TRN42.2-52 2.2 D.O.L 3.6 39 – 3.6 6 12 140 PVC 4 x 2 11.8 6<br />
50 50TRN43.7-52 3.7 D.O.L 4 55 – 4 6 12 150 PVC 4 x 2 11.8 6<br />
50TRN45.5-52 5.5 D.O.L 4 78 – 4 6 15 170 CR 4 x 3.5 14.1 8<br />
80TRN47.5-52 7.5 D.O.L 4.5 124 – 4.5 6 15 190 CR 4 x 5.5 16.8 8<br />
4 x 3.5 14.1<br />
80<br />
80TRN412-52 12 Star-Delta 6 157 – 6 6 15 200 CR 3 x 3.5<br />
2x 1.25<br />
12.9<br />
10.5<br />
8<br />
4 x 5.5 16.8<br />
80TRN417-52 17 Star-Delta 6 202 - 6 6 15 220 CR 3 x 5.5 15.2 8<br />
2x 1.25 10.5<br />
4 x 14 21.7<br />
100 100TRN424-52 24 Star-Delta 6 388 - 6 8 22 460 CR 3 x 14 19.7 10<br />
2x 1.25 10.5<br />
4 x 14 21.7<br />
150 150TRN440-52 40 Star-Delta 6 528 - 6 8 25 635 CR 3 x 14 19.7 10<br />
2x 1.25 10.5<br />
■ 3-3. Standard Specifications of TRN-series Aerators - 60Hz<br />
Air-<br />
inlet<br />
Bore<br />
[mm]<br />
● We assume no responsibility for any damages resulting from solids that enter even through the air-inlet pipe.<br />
● We do not indemnify for any secondary, consequential or incidental damages caused by a fault of the TRN aerator.<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Starting<br />
Method<br />
Max<br />
Water<br />
Depth<br />
(MWD)<br />
[m]<br />
Air<br />
Flow Rate<br />
- MWD<br />
[m 3 /h]-[m]<br />
No. of<br />
Outlets<br />
Impeller<br />
Passage<br />
[mm]<br />
Mass<br />
(Weight)<br />
[kg]<br />
Material<br />
Cores<br />
x mm 2<br />
Outer<br />
Dia.<br />
[mm]<br />
Cabtyre Cable<br />
32<br />
32TRN2.75-62<br />
32TRN21.5-62<br />
0.75<br />
1.5<br />
D.O.L<br />
D.O.L<br />
3.5<br />
3.5<br />
8 – 3.5<br />
17 – 3.5<br />
6<br />
6<br />
10<br />
12<br />
55<br />
55<br />
PVC<br />
PVC<br />
4x 1.25<br />
4x 1.25<br />
11.1<br />
11.1<br />
6<br />
6<br />
50TRN42.2-62 2.2 D.O.L 3.6 38 – 3.6 6 12 140 PVC 4 x 2 11.8 6<br />
50 50TRN43.7-62 3.7 D.O.L 4 60 – 4 6 12 150 PVC 4 x 3.5 13.9 6<br />
50TRN45.5-62 5.5 D.O.L 4 79 – 4 6 15 170 CR 4 x 3.5 14.1 8<br />
80TRN47.5-62 7.5 D.O.L 4.5 112 – 4.5 6 15 190 CR 4 x 5.5 16.8 8<br />
4 x 3.5 14.1<br />
80<br />
80TRN412-62 12 Star-Delta 6 155 – 6 6 15 200 CR 3 x 3.5<br />
2x 1.25<br />
12.9<br />
10.5<br />
8<br />
4 x 5.5 16.8<br />
80TRN417-62 17 Star-Delta 6 220 - 6 6 15 220 CR 3 x 5.5<br />
2x 1.25<br />
15.2<br />
10.5<br />
8<br />
4 x 14 21.7<br />
100 100TRN424-62 24 Star-Delta 6 342 - 6 8 22 460 CR 3 x 14<br />
2x 1.25<br />
19.7<br />
10.5<br />
10<br />
4 x 14 21.7<br />
150 150TRN440-62 40 Star-Delta 6 506 - 6 8 25 635 CR 3 x 14<br />
2x 1.25<br />
19.7<br />
10.5<br />
10<br />
Note:) Following notes are applicable to the above two tables.<br />
✳ The air flow rates are expressed at the standard conditions.: Temperature 20 o C, 1atm<br />
✳ The air flow rates may vary by up to approximately 5%.<br />
✳ The Maximum Water Depth (MWD) is the limit of installation depth that the aerator can run without overload. The motor load<br />
increases as the installation depth becomes deeper, therefore, if the aerator is operated at a deeper position than this limit, the<br />
motor will be overload, and then the motor protection device will operate, which makes it impossible to run continuously.<br />
✳ Mass (Weights) excluding cable.<br />
✳ PVC = PVC sheathed cable CR = Chloroprene rubber sheathed cable<br />
Cores<br />
x mm 2<br />
Outer<br />
Dia.<br />
[mm]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500<br />
Length<br />
[m]<br />
Length<br />
[m]
4. Shape and Dimension of Aeration Tank<br />
■ 4-1. Typical Convection Pattern<br />
· Main Convection: Convection made by rising bubbles. (The<br />
minimum distance that must be provided between each<br />
aerator)<br />
· Sub-convection: The maximum convection that can keep<br />
solids suspended to prevent sedimentation of solids.<br />
■ 4-2. Shape of Aeration Tanks<br />
■ 4-3. Recommended Tank Dimensions (Standard)<br />
Air-<br />
inlet<br />
Bore<br />
[mm]<br />
32<br />
50<br />
80<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Max.<br />
Water<br />
Depth<br />
[m]<br />
Main<br />
Convection<br />
Dia.<br />
[m]<br />
4<br />
Circular<br />
Tank<br />
φa<br />
[m]<br />
Square<br />
Tank<br />
a<br />
[m]<br />
Dimension of Sub-convection<br />
Rectangular Tank<br />
(below 1 : 1.5)<br />
a<br />
[m]<br />
Sub‐convection<br />
Main Convection<br />
Circular Tank Square Tank Rectangular Tank<br />
φa<br />
h<br />
a a<br />
W.L W.L<br />
W.L W.L<br />
W.L W.L<br />
h<br />
b<br />
[m]<br />
Rectangular Tank<br />
(below 1 : 2)<br />
32TRN2.75-52/62 0.75 3.5 1.4 3.5 3 3.8 2.5 4 2<br />
32TRN21.5-52/62 1.5 3.5 1.8 4.5 4 4.5 3 5 2.5<br />
50TRN42.2-52/62 2.2 3.6 2.4 6 5.5 5.3 3.5 6 3<br />
50TRN43.7-52/62 3.7 4 3 7 6.5 6.8 4.5 7 3.5<br />
50TRN45.5-52/62 5.5 4 3.8 9 8 9 6 9 4.5<br />
80TRN47.5-52/62 7.5 4.5 4.4 10 9 9.8 6.5 10 5<br />
80TRN412-52/62 12 6 5.2 12 11 11.3 7.5 12 6<br />
80TRN417-52/62 17 6 5.6 13 11.5 12 8 13 6.5<br />
100 100TRN424-52/62 24 6 6.3 14.5 13 13.5 9 14 7<br />
150 150TRN440-52/62 40 6 7.3 17 15 15.8 10.5 16 8<br />
✳ Dimension of each tank has been determined at the maximum water depth. It shall be altered if the aerator is to be<br />
installed at a different depth.<br />
✳ It is recommended to provide a haunch between the bottom of the tank and every side wall in order to maintain the<br />
mixing efficiency.<br />
✳ The maximum water depth (MWD) is the limit of installation depth that the aerator can run without overload. The<br />
motor load increases as the installation depth becomes deeper, therefore, if the aerator is operated at a deeper<br />
position than this limit, the motor will be overload, and then the motor protection device will operate, which makes it<br />
impossible to run continuously.<br />
a<br />
h<br />
a<br />
[m]<br />
W.L<br />
Diffused convection<br />
flow generated by the<br />
rising of bubbles<br />
b<br />
b<br />
[m]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
■ 4-4. Notes to the Case that Two or More Aerators are to be installed in a Tank.<br />
If there is a need to install two or more aerators having the same output in a tank, decide the place of installation<br />
paying attention to the distance between or among the aerators and the distance between the aerator and the<br />
tank’s sidewall. The distance between or among the aerators should be more than the “Main Convection Diameter”<br />
in the table of “4-3. Recommended Tank Dimensions (Standard)” on page 4. The distance between the aerator and<br />
the sidewall should be so decided that the main convection might not hit directly on the sidewall.<br />
In addition, it shall be taken into account that the area to be convected by one aerator must be small than<br />
“Dimension of Sub-convection” in the same table.<br />
✳ If above-mentioned distances are smaller than the main convection, the aerator will suck the mixed air-water<br />
current, and as a result it may lead to an unsteady operation of the aerator.<br />
✳ If the area convected by one aerator is bigger than the sub-convection of each aerator, the sufficiency mixing<br />
force does not spread throughout the tank, and as a result it may allow the sludge to settle at the tank bottom.<br />
Main Convection<br />
Main Convection<br />
Main Convection<br />
CIRCULAR TANK<br />
SQUARE TANK<br />
Distance between the installed aerators should be<br />
greater than the main convection diameter.<br />
5<br />
Main Convection<br />
W.L<br />
RECTANGULAR TANK<br />
Main Convection<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
5. Aerator with Optional Stand or Draft Tube<br />
There may be a need to install the aerator at a deeper position than its MWD, for example;<br />
· An aerator is going to be installed in an existing tank, and it is not possible to alter the depth of the tank, and<br />
· Because of the limited surface area, the tank must be designed to have a greater depth, etc.<br />
Adoption of a Tsurumi aerator with optional stand or draft tube (DT) will be one of the solutions for these cases. In case of<br />
using a stand, the mixing force at the bottom will be weakened as the inlet port of the aerator moves away from the bottom.<br />
Therefore, we have set the height limit on the stand of 0.5 meters, and for the cases of more than 0.5meters are required,<br />
we recommend an aerator with a DT. Note that the oxygen transfer rate and the air flow rate of the aerator shall be those<br />
that are obtainable at its self-aspiration water depth d [installation water depth h – (minus) height of stand or DT]. In<br />
addition, it shall be noted that the performance of the aerator with DT can be slightly lower than that of the standard.<br />
When there is a fear of overload occurring to the motor by due to a reason that it is going to operate in a viscous liquid, etc.,<br />
it will be possible to prevent the overload by reducing the self-aspiration water depth d with this method.<br />
The aerator may move or fall during operation by a reason that it is sitting on an irregular floor like slanted, bumpy, or<br />
slippery floor, or by a reason that it is installed in such that the weight of air-inlet piping acts on the aerator. Take an<br />
appropriate preventive measure in accordance with the conditions. In case that there is any flow generating equipment in<br />
the tank, the same measure must be required.<br />
■ 5-1. Recommended Tank Dimensions (with Stand or Draft Tube)<br />
Air-<br />
inlet<br />
Bore<br />
[mm]<br />
32<br />
50<br />
80<br />
Installation<br />
Water Depth h<br />
Discharge Current<br />
Suction Current<br />
With a stand of 0.5m<br />
Image of 0.75kW<br />
(Available 0.75kW to 40kW)<br />
Self-aspiration<br />
Water Depth d<br />
(Within MWD)<br />
Discharge<br />
Current<br />
With<br />
Optional Stand<br />
/ DT<br />
Suction<br />
Current<br />
With a DT of 1.0m<br />
Image of 5.5kW<br />
(Available 22kW to 40kW)<br />
Discharge Current<br />
Suction<br />
Current<br />
with Stand (0.5m) Draft Tube (1.0m) Draft Tube (1.5m)<br />
Dimension of<br />
Dimension of<br />
Dimension of<br />
Sub-convection<br />
Sub-convection<br />
Sub-convection<br />
Model<br />
Max<br />
Motor<br />
Water<br />
Output<br />
Depth<br />
[kW]<br />
[m]<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
Circular<br />
Tank<br />
φa<br />
[m]<br />
Square<br />
Tank<br />
a<br />
[m]<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
Circular<br />
Tank<br />
φa<br />
[m]<br />
Square<br />
Tank<br />
a<br />
[m]<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
Circular<br />
Tank<br />
φa<br />
[m]<br />
Square<br />
Tank<br />
a<br />
[m]<br />
32TRN2.75-52/62 0.75 3.5 4 3.5 3<br />
32TRN21.5-52/62 1.5 3.5 4 4 3.5<br />
50TRN42.2-52/62 2.2 3.6 4.1 5.5 5 4.6 5 4.5<br />
50TRN43.7-52/62 3.7 4 4.5 6.5 6 5 6 5.5<br />
50TRN45.5-52/62 5.5 4 4.5 8.5 7.5 5 8 7<br />
80TRN47.5-52/62 7.5 4.5 5 9.5 8.5 5.5 9 8<br />
With a DT of 1.5m<br />
Image of 40kW<br />
(Available 24kW to 40kW)<br />
80TRN412-52/62 12 6 6.5 11.5 10.5 7 11 10<br />
80TRN417-52/62 17 6 6.5 12.5 11 7 12 10.5<br />
100 100TRN424-52/62 24 6 6.5 14 12.5 7 13.5 12 7.5 13 11.5<br />
150 150TRN440-52/62 40 6 6.5 16 14.5 7 15.5 13.5 7.5 15 13<br />
✳ Dimensions of each tank are those that have been determined under the condition that the self-aspiration water depth d equals to<br />
the maximum water depth. These dimensions will vary depending on the installation water depth h.<br />
✳ It is recommended to provide a haunch between the bottom of the tank and every sidewall in order to maintain the mixing efficiency.<br />
✳ The aerator with a draft tube is not available in the shaded area.<br />
✳ The maximum water depth is the limit of installation depth that the aerator can run without overload. The motor load increases as<br />
the installation depth becomes deeper, therefore, if the aerator is operated at a deeper position than this limit, the motor will be<br />
overloaded, and then the motor protection device will operate, which makes it impossible to run continuously.<br />
✳ Refer to “4-1. Typical Convection Pattern” and “4-2. Shape of Aeration Tanks” on page 4 for the explanations on the tank shape<br />
and the dimension.<br />
6<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
6. Oxygen Transfer Rate<br />
The oxygen transfer rate is the speed that the oxygen in the air dissolves into a liquid. It can be a guide when a<br />
biological treatment is going to be designed. The oxygen transfer rate is not the one that is directly measured. It is<br />
given from the calculations taking various factors such as DO concentration, ambient temperature, and water<br />
temperature, etc. The oxygen transfer rate may vary by up to approximately 10%.<br />
The tables 6-1. below show the results of the tests that have been carried out on the TRN aerators in our test tank.<br />
It is suggested that these figures be used taking the above conditions into full consideration when selecting the<br />
aerators.<br />
The measurement of DO has been made by a Non-steady State method at the condition of fresh water, 20 o C, 1atm,<br />
with the dissolved oxygen of 0mg/l. The air flow rates are those of standard condition, 20 o C, 1atm. The aerator was<br />
tested under its standard installation; placed at the center of the tank and at the standard installation depth.<br />
■ 6–1. Oxygen Transfer Rate Test Result<br />
▼ 50Hz<br />
Air-inlet<br />
Bore<br />
[mm]<br />
▼ 60Hz<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Installation<br />
Water Depth h<br />
(Standard)<br />
[m]<br />
7<br />
Air Flow Rate<br />
[m 3 /h]<br />
Oxygen<br />
Transfer Rate<br />
[kgO 2/h]<br />
32<br />
32TRN2.75-52<br />
32TRN21.5-52<br />
0.75<br />
1.5<br />
3.5<br />
3.5<br />
7<br />
20<br />
0.6<br />
1.1<br />
50TRN42.2-52 2.2 3.6 39 2.4<br />
50<br />
50TRN43.7-52<br />
50TRN45.5-52<br />
3.7<br />
5.5<br />
4<br />
3<br />
4<br />
55<br />
95<br />
78<br />
4.2<br />
4.9<br />
5.4<br />
80TRN47.5-52 7.5 4.5 124 7.3<br />
80 80TRN412-52 12<br />
4<br />
5<br />
195<br />
178<br />
9.9<br />
11.0<br />
80TRN417-52 17 5 224 14.9<br />
100 100TRN424-52 24 5 400 20.2<br />
150 150TRN440-52 40 5 538 28.9<br />
Air-inlet<br />
Bore<br />
[mm]<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Installation<br />
Water Depth h<br />
(Standard)<br />
[m]<br />
Air Flow Rate<br />
[m 3 /h]<br />
Oxygen<br />
Transfer Rate<br />
[kgO 2/h]<br />
32<br />
32TRN2.75-62<br />
32TRN21.5-62<br />
0.75<br />
1.5<br />
3.5<br />
3.5<br />
8<br />
17<br />
0.6<br />
0.9<br />
50TRN42.2-62 2.2 3.6 38 1.8<br />
50 50TRN43.7-62 3.7<br />
3<br />
4<br />
69<br />
60<br />
3.2<br />
3.6<br />
50TRN45.5-62 5.5 4 79 4.8<br />
80TRN47.5-62 7.5 4.5 112 6.6<br />
80 80TRN412-62 12<br />
4<br />
5<br />
185<br />
176<br />
8.6<br />
9.9<br />
80TRN417-62 17 5 232 12.5<br />
100 100TRN424-62 24 5 368 17.9<br />
150 150TRN440-62 40 5 555 27.6<br />
Test Tank<br />
Plane<br />
Dimension<br />
[m] x [m]<br />
Tank A<br />
( 5 x 5 )<br />
Tank B<br />
( 10 x 10 )<br />
Test Tank<br />
Plane<br />
Dimension<br />
[m] x [m]<br />
Tank A<br />
( 5 x 5 )<br />
Tank B<br />
( 10 x 10 )<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
■ 6-2. Oxygen Transfer Rate vs. Water Depth Curve - 50Hz * Calculated from the test result of Table 6-1.<br />
▼ The oxygen transfer rate may vary by up to approximately 10%. For the actual use, it may further vary depending<br />
on the type of liquid and the shape of tank, so that select a suitable aerator having a certain margin.<br />
Oxygen Transfer Rate [kgO 2/h]<br />
Oxygen Transfer Rate [kgO 2/h]<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
0.75kW and 1.5kW<br />
32TRN21.5-52<br />
32TRN2.75-52<br />
0 1 2 3 4<br />
Water Depth [m]<br />
50TRN45.5-52<br />
2.2kW to 5.5kW<br />
50TRN43.7-52<br />
50TRN42.2-52<br />
1 2 3 4 5<br />
Water Depth [m]<br />
8<br />
Oxygen Transfer Rate [kgO 2/h]<br />
Oxygen Transfer Rate [kgO 2/h]<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
7.5kW to 17kW<br />
80TRN417-52<br />
80TRN47.5-52<br />
80TRN412-52<br />
1 2 3 4 5 6 7<br />
Water Depth [m]<br />
150TRN440-52<br />
24kW and 40kW<br />
100TRN424-52<br />
2 3 4 5 6 7<br />
Water Depth [m]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
■ 6-3. Oxygen Transfer Rate vs. Water Depth Curve - 60Hz * Calculated from the test result of Table 6-1.<br />
▼ The oxygen transfer rate may vary by up to approximately 10%. For the actual use, it may further vary depending<br />
on the type of liquid and the shape of tank, so that select a suitable aerator having a certain margin.<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
0.75kW and 1.5kW<br />
32TRN21.5-62<br />
0 1 2 3 4<br />
50TRN45.5-62<br />
Water Depth [m]<br />
2.2kW to 5.5kW<br />
32TRN2.75-62<br />
1 2 3 4 5<br />
Water Depth [m]<br />
50TRN43.7-62<br />
50TRN42.2-62<br />
9<br />
Oxygen Transfer Rate [kgO 2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
16<br />
14<br />
12<br />
10<br />
5<br />
8<br />
6<br />
4<br />
2<br />
0<br />
7.5kW to 17kW<br />
80TRN417-62<br />
1 2 3 4 5 6 7<br />
Water Depth [m]<br />
150TRN440-62<br />
80TRN412-62<br />
80TRN47.5-62<br />
24kW and 40kW<br />
100TRN424-62<br />
2 3 4 5 6 7<br />
Water Depth [m]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
7. Operation System<br />
■ 7-1. Reduced Speed Operation by Variable Frequency Drive (VFD)<br />
There are two methods in the adjustment of “air flow rate” and the “oxygen transfer rate” of the result. One is to squeeze the valve<br />
that is installed in the air-inlet piping, and the other is to reduce the speed of aerator by VFD. However, the aerator has the<br />
characteristics described below, and different effects are expected.<br />
· The motor load increases as the installation depth becomes deeper.<br />
· The motor load increases as we reduce the air flow rate squeezing the valve that is installed in the air-inlet piping.<br />
In most cases, the adoption of reduced speed operation by VFD will enable us to regulate the air flow rate in a more extensive range than<br />
operating the valve, without sacrificing the efficiency. A comparison in the methods of adjustment is made in the following table. Refer to<br />
this table in your planning.<br />
The graph of 7-1-2. shows comparisons in adjustment range between the two methods and 7-1-3. shows characteristics of reduced<br />
speed operation by VFD for an aerator (Model 50TRN43.7-62) at 2 meters’ depth which has the widest possible range in the adjustment<br />
of air flow rate.<br />
▼ 7-1-1. Comparisons in the Method of Adjustment<br />
Methods for<br />
Features<br />
Adjustment<br />
(○: shows the merit, ☓: shows the demerit)<br />
○ Installation will be completed by simply connection the valve at the inlet port of the air-inlet pipe.<br />
Adjustment ☓ Low power efficiency (kgO2/ kWh) ⇒ Disadvantage in the energy saving<br />
by squeezing ☓ It is difficult to make an accurate control as the air flow rate and the operating current cannot be stabilized.<br />
the valve ☓ Louder beat<br />
☓ Narrow adjustment range at a deeper installation<br />
☓ It is necessary to install a VFD (extra initial cost is necessary).<br />
Adjustment ○ The power efficiency (kgO2/ kWh) shall be maintained virtually constant.<br />
by reducing<br />
⇒ Energy saving operation with reduced power consumption is possible.<br />
the speed ○ The air flow rate and the running current can be maintained constant.<br />
with a VFD<br />
⇒ Possible to control the air flow rate and the oxygen transfer rate accurately.<br />
○ Reduction of the operating frequency (reduction in air flow rate) will decrease the sound level.<br />
▼ 7-1-2. Comparisons in Adjustment Range (for reference only)<br />
“①” shows the adjustment range served by a VFD, and “②” shows it served by a valve.<br />
Estimated Air Flow Rate at the Standard Condition (20 o C, 1atm) Test Result at Our Test Tank (5m x 5m) with Clean Water, Converted to 20 o C<br />
Air Flow Rate [m 3 /h]<br />
▼ 7-1-3. Characteristics of Reduced Speed Operation by VFD (for reference only)<br />
Estimated Air Flow Rate at the Standard Condition (20 o C, 1atm) Test Result at Our Test Tank (5m x 5m) with Clean Water, Converted to 20 o C<br />
Air Flow Rate [m 3 /h]<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
①<br />
Installation Water Depth<br />
2m<br />
Decrease<br />
in Load<br />
Installation<br />
Water Depth<br />
2 m<br />
20<br />
35 40 45 50 55 60 65<br />
Operation Frequency [Hz]<br />
Increase<br />
in Load<br />
35 40 45 50 55 60 65<br />
Operation Frequency [Hz]<br />
Installation<br />
Water Depth<br />
4 m<br />
Installation<br />
Water Depth<br />
3 m<br />
②<br />
The motor will be overloaded<br />
if the valve is squeezed more<br />
than this point.<br />
10<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxyge Transfer Rate [kgO2/h]<br />
3<br />
2.5<br />
2<br />
1.5<br />
1<br />
0.5<br />
35 40 45 50 55 60 65<br />
4<br />
3.5<br />
3<br />
2.5<br />
2<br />
1.5<br />
1<br />
①<br />
Installation Water Depth<br />
2m<br />
The changing trend of the motor load is<br />
the<br />
※<br />
same<br />
モータ負荷の変化傾向は左図と同じ<br />
as left graph.<br />
Operation Frequency [Hz]<br />
Installation<br />
Water Depth<br />
4 m<br />
Installation<br />
Water Depth<br />
2 m<br />
Installation<br />
Water Depth<br />
3 m<br />
0.5<br />
35 40 45 50 55 60 65<br />
②<br />
The motor will be overloaded<br />
if the valve is squeezed more<br />
than this point.<br />
<strong>Australian</strong> Operation <strong>Pump</strong> Frequency <strong>Industries</strong> [Hz] (02) 8865 3500
■ 7-2. Operation in combination with Blower<br />
This is an operation system that an aerator and a general purpose blower are operated in conjunction. The blower is<br />
installed at the end of air-inlet line of an aerator and gives pressure to the air. This enables us to install the aerator<br />
at a deeper position than the designed standard. For example, the aerator can be operated at the depth of 10 meters<br />
by means of the principle that the general purpose blower gives pressure to the air for 5 meters depth and the<br />
aerator sucks air for the 5 meters’ depth.<br />
▼ 7-2-1. Comparison against Other Deep Aeration Methods (in case the tank depth is 10m)<br />
Aeration<br />
Equipment<br />
Submersible<br />
Aerator<br />
(Tsurumi<br />
“TRN” series,<br />
self-aspiration<br />
type)<br />
Submersible<br />
Aerator<br />
(Draft Tube<br />
type axial-flow<br />
mixer)<br />
Plate Diffuser<br />
(Convection by<br />
line aeration<br />
method)<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
10<br />
Oxygen<br />
Transfer<br />
Efficiency<br />
(Clean Water)<br />
[%]<br />
26 to 53<br />
(Estimated<br />
value)<br />
Pressure Loss<br />
by Equipment<br />
[kPa]<br />
0<br />
(because of the<br />
self-aspiration<br />
system)<br />
5 20 to 30 2.6 to 4.5<br />
5 15 to 17<br />
3.92<br />
+ 0.29 to 0.78<br />
(aging increase<br />
in pressure loss)<br />
Remarks<br />
(○: Merit, ☓: Demerit)<br />
○ High in the oxygen<br />
transfer efficiency as<br />
the aerator can<br />
be installed at the bottom.<br />
○ Possible to operate<br />
with smaller powers<br />
(See p.14 7-2-5).<br />
○ Installation or maintenance<br />
work can be performed<br />
without draining the tank<br />
○ High-durability due to the<br />
original “air-seal”<br />
structure and<br />
the OIL LIFTER.<br />
☓ One (1) blower must<br />
be engaged to<br />
one (1) aerator only.<br />
○ Possible to reduce the<br />
equipment quantity as high<br />
in oxygen transfer rate.<br />
○ Anaerobic treatment is<br />
possible.<br />
☓ Requiring the draft tube.<br />
☓ Expensive in<br />
piping equipment.<br />
☓ Necessary to drain the<br />
tank in its first installation.<br />
☓ Requiring the guide plate.<br />
☓ Expensive in<br />
piping equipment.<br />
☓ Necessary to drain<br />
the tank in its first<br />
installation and<br />
maintenance.<br />
11<br />
Components Used<br />
(Summary)<br />
See p.12 7-2-2<br />
Equipment necessary for this Operation<br />
✳ A general purpose blower is supposed to be applicable to use up to 60 kPa.<br />
✳ The oxygen transfer efficiencies and the figure are quoted from “Guideline and Manual for Planning and Design in Sewerage Systems<br />
(2001)”.<br />
✳ When selecting a blower, calculate the required pressure including the loss of pressure which is generated in the piping system.<br />
Air-<br />
supply<br />
Pipe<br />
Installation<br />
Water<br />
Depth h<br />
Air-supply Pipe<br />
Draft<br />
Tube<br />
Plate Diffuser<br />
Guide<br />
Plate<br />
Submersible<br />
Aerator<br />
(Draft Tube<br />
type<br />
axial-flow<br />
mixer)<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500<br />
Installation<br />
Water<br />
Depth h
▼ 7–2-2. Equipment necessary for this Operation<br />
· The blower must be operated with a VFD (Never use direct-on-line starting to start the blower.). Operation<br />
with a VFD will be effective in energy saving.<br />
· One (1) blower must be engaged to one (1) aerator only. This is because, the air is transferred to the deeper<br />
area of the tank by utilizing both the outlet pressure of the blower and the suction force of the aerator, and it<br />
is required to keep the balance between the two equipments. If the balance is disrupted, the aerator may idle<br />
(impeller runs in air) or may stop its operation by due to tripping of the motor protection device caused by an<br />
overloading reason. As a result of these conditions, the blower gets into the “closed-valve” operation, which<br />
can cause the danger of a breakdown of the blower by the reason of overload or abnormal pressure.<br />
· Be sure to provide a non-return valve in the blower outlet piping. This is to prevent the treating liquid from<br />
flowing back to the blower when the blower stops. Back-flow of the treating liquid pressurizes the air in the<br />
piping, and this may cause the danger of a breakdown of the blower.<br />
· Provide a pressure gauge, which indicates the outlet pressure of the blower. This is required for operation<br />
adjustments.<br />
· When there is a need for the correct adjustment of air flow rate, provide a flow meter.<br />
· For other precautions, follow the instructions specified in each design manual.<br />
Blower House<br />
Blower<br />
(with VFD)<br />
Pressure depth covered<br />
by the blower<br />
Self-aspiration water depth d by<br />
the submersible aerator (within the<br />
maximum installation water depth<br />
of each aerator)<br />
Pressure Gauge<br />
Non-return Valve<br />
12<br />
Air-inlet Pipe<br />
W.L<br />
Submersible Aerator<br />
Installation<br />
Water Depth h<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-3. Operation<br />
· Operation of the submersible aerator and the blower shall be controlled in such a manner that both equipment<br />
be started or stopped simultaneously.<br />
· Regulate the acceleration time (VFD) to approximately 10 seconds, and secure the stable starts of these<br />
equipments. In case that the acceleration time is longer than this, the motor protection device of the aerator<br />
may trip to stall the aerator by due to overload, and as a result the blower may have the danger of breakdown<br />
due to overload or an abnormal pressure. In addition, the deceleration time (VFD) shall be regulated to the<br />
region between 15 to 20 seconds so that the non-return valve may not suffer an impact.<br />
▼ 7-2-4. Adjusting Procedure for Air Flow Rate (e.g. 200V, 50Hz)<br />
Step 1. Prepare a clamp meter to measure the running current of the submersible aerator.<br />
Step 2. Regulate the rotating speed of the blower with VFD, according to the “Initially Targeted Operating<br />
Point of Blower” in the table of p.15 7-2-7.<br />
✳ Do not carry out this adjusting work by solely operating the blower. In case that the aerator is not operating<br />
together, there may be the danger of breakdown of the blower by due to overload or abnormal pressure as<br />
the blower gets into the “closed-valve” condition.<br />
Step 3. Start the submersible aerator and the blower simultaneously.<br />
Step 4. Confirm that the running current of the submersible aerator is within the limit of “Operating Range of<br />
Aerator on Running Current” described in the table of p.15 7-2-7. If not, rotating speed of the blower so<br />
that the running current of the submersible aerator may fall within the operating range.<br />
✳ Method to decrease the running current of submersible aerator; Increase the rotating speed of the blower.<br />
By this, the self-aspiration water depth d of the submersible aerator becomes shallower and the running<br />
current will be decreased.<br />
✳ Method to increase the running current of submersible aerator; Decrease the rotating speed of the blower.<br />
By this, the self-aspiration water depth d of the submersible aerator becomes deeper and the running<br />
current will be increased.<br />
✳ If the running current of the aerator plunges much lower than the “Operating Range of Aerator on Running<br />
Current”, it shows a symptom that the balance between the outlet pressure of the blower and the suction<br />
force of the aerator is disrupted, and that the aerator is not generating any suction force because it is idling.<br />
In this case, stop both of the blower and aerator immediately. If this condition continues, there will be the<br />
danger of breakdown of the blower by due to overload or an abnormal pressure as the blower gets into the<br />
“closed-valve” operation.<br />
Step 5. Adjust the rotating speed of the blower with VFD in such a manner that the blower may discharge the<br />
targeted air flow rate at its required pressure in a graph of 7-2-11. “Discharge Pressure of Blower vs. Air<br />
Flow Rate Curve (combination with blower – 50Hz)” on page 18.<br />
✳ Note that, depending on the operating condition, the blower could discharge the targeted air flow rate at a<br />
pressure point lower than indicated in a graph of p.18 7-2-11. In this case, adjust the rotating speed of the<br />
blower assuming that it discharges maximum air flow rate on its graph at the point of minimum (running)<br />
current in the “Operating Range of Aerator on Running Current” in the table of p.15 7-2-7 and that it<br />
discharges minimum air flow rate on its graph at the point of maximum (running) current in the range.<br />
13<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-5. Selection Procedure (Example)<br />
Condition - Water Depth of 10m, Required Oxygen Transfer Rate of 16.5kgO2/h (clean water), 200V, 50Hz<br />
In case of Submersible Aerator + General purpose Blower<br />
Providing a safety factor of 10% for the required oxygen transfer rate, the required oxygen transfer rate shall be<br />
18.2kgO2/h. Refer to p.16 7-2-9. Oxygen Transfer Rate vs. Air Flow Rate Curve (combination with blower - 50Hz), and Model<br />
80TRN47.5-52 (7.5kW) can be selected. The required air flow rate shall be 180m 3 /h.<br />
Refer to p.18 7-2-11. Discharge Pressure of Blower vs. Air Flow Rate Curve (combination with blower - 50Hz,<br />
estimate). When the air flow rate required is 180m 3 /h (3.00m 3 /min), the required discharge pressure shall be<br />
0.053MPa (53kPa).<br />
In case that a margin of 5kPa is added to the discharge pressure of the blower (considering the pressure loss in<br />
the pipe and a margin), the blower should have a duty of 53 + 5 = 58 kPa.<br />
Required air flow rate shall be 3.15m 3 /min. including 5% allowance. Model RSR-80 (1370min –1 , 3.20m 3 /min, at<br />
58.8kPa, 5.01kW) can be selected,<br />
The total required power is 〔7.5 + 5.01 = 12.51kW〕<br />
▼ 7-2-6. Recommended Tank Dimensions (combination with blower)<br />
Air-inlet Bore<br />
[mm]<br />
50<br />
80<br />
Model<br />
Motor Output<br />
[kW]<br />
50TRN42.2-52/62 2.2<br />
50TRN43.7-52/62 3.7<br />
50TRN45.5-52/62 5.5<br />
80TRN47.5-52/62 7.5<br />
80TRN412—52/62 12<br />
80TRN417-52/62 17<br />
100 100TRN424—52/62 24<br />
150 150TRN440—52/62 40<br />
Installation Water<br />
Depth h<br />
[m]<br />
14<br />
Blower Dimension of Sub-convection<br />
Discharge Pressure<br />
[kPa]<br />
6 24<br />
8 44<br />
9.6 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
6 20<br />
8 40<br />
10 60<br />
Circular Tank<br />
φa<br />
[m]<br />
Square Tank<br />
a<br />
[m]<br />
6 5.5<br />
7 6.5<br />
9 8<br />
10 9<br />
12 11<br />
13 11.5<br />
14.5 13<br />
17 15<br />
✳ The above table shows the estimated values under the condition that the self-aspiration water depth d (installation<br />
depth h – Pressure depth covered by the blower) be 4 meters. The aerating depth of 2.2kW model is 3.6 meters. For<br />
other operating conditions, refer to p.18 7-2-11. “Discharge pressure of Blower vs. Air Flow Rate Curve (combination<br />
with blower - 50Hz)”, or p.19 7-2-12. “Discharge pressure of Blower vs. Air Flow Rate Curve (combination with<br />
blower - 60Hz)”.<br />
✳ Discharge pressures in above do not include the pressure loss in the piping. It is required to calculate and add it to the<br />
above value when selecting the blower.<br />
✳ It is recommended that a haunch be provided between each sidewall and the bottom of the tank so as to maintain the<br />
mixing efficiency.<br />
✳ Only the above models are applicable to the combined use of an aerator and a blower.<br />
✳ Refer to “4-1. Typical Convection Pattern” and “4-2. Shape of Aeration Tanks” on page 4 for explanations on the<br />
tank shape and the dimension.<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-7. Initially Targeted Operating Point of Blower and<br />
Operating Range of Aerator on Running Current (combination with blower - 50Hz)<br />
● 50Hz<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
50TRN42.2-52 2.2<br />
50TRN43.7-52 3.7<br />
50TRN45.5-52 5.5<br />
80TRN47.5-52 7.5<br />
80TRN412-52 12<br />
80TRN417-52 17<br />
100TRN424-52 24<br />
150TRN440-52 40<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
Initially Targeted Operating Point<br />
of Blower<br />
Discharge Pressure<br />
of Blower<br />
[kPa]<br />
15<br />
Inlet Air Flow Rate<br />
of Blower<br />
[m 3 /min]<br />
6 24 0.77<br />
8 44 0.87<br />
9.6 60 1.12<br />
6 20 1.05<br />
8 40 1.18<br />
10 60 1.50<br />
6 20 1.50<br />
8 40 1.68<br />
10 60 2.2<br />
6 15 2.3<br />
8 35 2.6<br />
10 55 3.1<br />
6 10 3.2<br />
8 30 3.6<br />
10 50 4.5<br />
6 10 4.0<br />
8 30 4.5<br />
10 50 5.4<br />
6 10 7.1<br />
8 30 8.0<br />
10 50 9.3<br />
6 10 9.6<br />
8 30 10.8<br />
10 50 12.8<br />
Operating Range of Aerator<br />
on Running Current<br />
(200V)<br />
[A]<br />
(400V)<br />
[A]<br />
9.0 to 10.5 4.5 to 5.3<br />
13.5 to 17.2 7.0 to 8.6<br />
20.0 to 24.3 10.0 to 12.1<br />
23.5 to 31.8 12.0 to 15.9<br />
36.0 to 51.4 18.0 to 25.7<br />
51.0 to 70.3 26.0 to 35.2<br />
78 to 96 39 to 48<br />
134 to 165 67 to 83<br />
▼ 7-2-8. Initially Targeted Operating Point of Blower and<br />
Operating Range of Aerator on Running Current (combination with blower – 60Hz)<br />
● 60Hz<br />
Model<br />
Motor<br />
Output<br />
[kW]<br />
Installation<br />
Water<br />
Depth h<br />
[m]<br />
Initially Targeted Operating Point<br />
of Blower<br />
Discharge Pressure<br />
of Blower<br />
[kPa]<br />
Inlet Air Flow Rate<br />
of Blower<br />
[m 3 /min]<br />
Operating Range of Aerator<br />
on Running Current<br />
(200V)<br />
(400V)<br />
6 24 0.76<br />
50TRN42.2-62 2.2<br />
8 44 0.85<br />
8.0 to 9.5 4.0 to 4.8<br />
9.6 60 1.00<br />
6 20 1.13<br />
50TRN43.7-62 3.7<br />
8 40 1.30<br />
12.5 to 16.0 6.5 to 8.0<br />
10 60 1.58<br />
6 20 1.50<br />
50TRN45.5-62 5.5<br />
8 40 1.70<br />
17.5 to 22.6 9.0 to 11.3<br />
10 60 2.1<br />
6 15 2.1<br />
80TRN47.5-62 7.5<br />
8 35 2.3<br />
23.0 to 29.6 11.5 to 15.0<br />
10 55 2.7<br />
6 10 3.3<br />
80TRN412-62 12<br />
8 30 3.7<br />
34.0 to 47.6 17.0 to 23.8<br />
10 50 4.3<br />
6 10 4.1<br />
80TRN417-62 17<br />
8 30 4.6<br />
44.0 to 66.3 22.0 to 33.2<br />
10 50 5.4<br />
6 10 7.1<br />
100TRN424-62 24<br />
8 30 7.4<br />
80 to 96 40 to 48<br />
10 50 8.4<br />
6 10 9.8<br />
150TRN440-62 40<br />
8 30 11.1<br />
145 to 165 73 to 83<br />
10 50 13.0<br />
✳ The above tables are those that are to be utilized in p.13 7-2-4. “Adjusting Procedure for Air Flow Rate (e.g. 200V, 50Hz)”.<br />
✳ To adjust the air flow rate of the blower initially, set the VFD to regulate the blower speed to perform “Initially Targeted Operating<br />
Point of Blower”.<br />
✳ For the operation in combination with a blower, adjust the rotating speed of the blower so that the running current of the<br />
submersible aerator may fall within the “Operating Range of Aerator” stated above. If the running current of the aerator goes<br />
beyond its range, the balance between the outlet pressure of the blower and the suction force of the aerator will be disrupted, and<br />
the aerator will idle (impeller runs in air) or will stop its operation by due to tripping of the motor protection device caused by an<br />
overloading reason. As a result of these conditions, the blower gets into the “closed-valve” operation, which can cause the danger<br />
of breakdown of the blower by the reason of overload or abnormal pressure.<br />
[A]<br />
[A]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-9. Oxygen Transfer Rate vs. Air Flow Rate Curve (combination with blower - 50Hz)<br />
* Calculated from 6-1 and 7-2-11<br />
● Data on this page are for reference only. It is suggested that a certain safety margin be added in your selection.<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
9<br />
8<br />
50TRN42.2-52<br />
7<br />
8m<br />
Installation<br />
6<br />
5<br />
4<br />
Depth<br />
9.6m<br />
3<br />
2<br />
6m<br />
20 30 40 50 60 70 80<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
Air Flow Rate [m 3 /h]<br />
2<br />
20 40 60 80 100 120 140<br />
20<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
6m<br />
50TRN43.7-52<br />
8m<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
4<br />
60 80 100 120 140 160 180<br />
22<br />
20<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6m<br />
8m<br />
50TRN45.5-52<br />
Air Flow Rate [m 3 /h]<br />
8m<br />
6m<br />
80TRN47.5-52<br />
Installation<br />
Depth<br />
10m<br />
6<br />
100 120 140 160 180 200 220 240<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
16<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
30<br />
25<br />
20<br />
15<br />
6m<br />
8m<br />
80TRN412-52<br />
10<br />
150 200 250 300 350<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
8m<br />
Air Flow Rate [m 3 /h]<br />
80TRN417-52<br />
6m<br />
Installation<br />
Depth<br />
10m<br />
10<br />
200 250 300 350 400 450<br />
60<br />
50<br />
40<br />
30<br />
20<br />
Air Flow Rate [m 3 /h]<br />
100TRN424-52<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
10m<br />
10<br />
300 400 500 600 700<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
8m<br />
6m<br />
Air Flow Rate [m 3 /h]<br />
150TRN440-52<br />
Installation<br />
Depth<br />
10m<br />
10<br />
500 600 700 800 900 1000<br />
Air Flow Rate[m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-10. Oxygen Transfer Rate vs. Air Flow Rate Curve (combination with blower - 60Hz)<br />
* Calculated from 6-1 and 7-2-11<br />
● Data on this page are for reference only. It is suggested that a certain safety margin be added in your selection.<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
9<br />
8<br />
50TRN42.2-62<br />
7<br />
Installation<br />
6<br />
5<br />
4<br />
8m<br />
Depth<br />
9.6m<br />
3<br />
2<br />
6m<br />
20 30 40 50 60 70 80<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
Air Flow Rate [m 3 /h]<br />
2<br />
20 40 60 80 100 120 140<br />
20<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6m<br />
50TRN43.7-62<br />
8m<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
6<br />
4<br />
6m<br />
60 80 100 120 140 160 180<br />
22<br />
20<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
8m<br />
8m<br />
50TRN45.5-62<br />
Air Flow Rate [m 3 /h]<br />
80TRN47.5-52<br />
6m<br />
Installation<br />
Depth<br />
10m<br />
6<br />
100 120 140 160 180 200 220 240<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
17<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
Oxygen Transfer Rate [kgO2/h]<br />
30<br />
25<br />
20<br />
15<br />
6m<br />
80TRN412-62<br />
8m<br />
10<br />
150 200 250 300 350<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
8m<br />
Air Flow Rate [m 3 /h]<br />
150TRN440-62<br />
6m<br />
80TRN417-62<br />
6m<br />
Installation<br />
Depth<br />
10m<br />
10<br />
200 250 300 350 400 45<br />
60<br />
50<br />
40<br />
30<br />
Air Flow Rate [m 3 /h]<br />
8m<br />
100TRN424-62<br />
8m Installation<br />
Depth<br />
10m<br />
10<br />
500 600 700 800 900 1000<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
20<br />
10<br />
6m<br />
300 400 500 600 700<br />
Air Flow Rate [m 3 /h]<br />
Installation<br />
Depth<br />
10m<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-11. Discharge Pressure of Blower vs. Air Flow Rate Curve (combination with blower - 50Hz)<br />
Air Flow Rate [m 3 /h]<br />
Air Flow Rate [m 3 /h]<br />
240<br />
220<br />
200<br />
180<br />
160<br />
140<br />
120<br />
100<br />
140<br />
130<br />
120<br />
110<br />
100<br />
80<br />
60<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
50TRN42.2-52 and 50TRN43.7-52<br />
50TRN43.7-52<br />
Installation<br />
Depth<br />
6m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
8m<br />
10m<br />
50TRN42.2-52<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
50TRN45.5-52 and 80TRN47.5-52<br />
80TRN47.5-52<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
50TRN45.5-52<br />
Estimated Air Flow Rate at the Standard Condition (20 o C, 1atm)<br />
9.6m<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
10m<br />
18<br />
Air Flow Rate [m 3 /h]<br />
Air Flow Rate [m 3 /h]<br />
420<br />
400<br />
380<br />
360<br />
340<br />
320<br />
300<br />
280<br />
260<br />
240<br />
220<br />
200<br />
180<br />
160<br />
1000<br />
950<br />
900<br />
850<br />
800<br />
750<br />
700<br />
650<br />
600<br />
550<br />
500<br />
450<br />
400<br />
350<br />
300<br />
80TRN412-52 and 80TRN417-52<br />
80TRN417-52<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
10m<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
80TRN412-52<br />
100TRN424-52 and 150TRN440-52<br />
150TRN440-52<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
10m<br />
100TRN424-52<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
▼ 7-2-12. Discharge Pressure of Blower vs. Air Flow Rate Curve (combination with blower - 60Hz)<br />
Air Flow Rate [m 3 /h]<br />
Air Flow Rate [m 3 /h]<br />
140<br />
130<br />
120<br />
110<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
240<br />
220<br />
200<br />
180<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
50TRN42.2-62 and 50TRN43.7-62<br />
50TRN43.7-62<br />
Installation<br />
Depth<br />
6m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
8m<br />
10m<br />
50TRN42.2-62<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
Estimated Air Flow Rate at the Standard Condition (20 o C, 1atm)<br />
9.6m<br />
50TRN45.5-62 and 80TRN47.5-62<br />
80TRN47.5-62<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
50TRN45.5-62<br />
0 0.02 0.04 0.06 0.08<br />
Discharge Pressure of Blower [MPa]<br />
10m<br />
19<br />
Air Flow Rate [m 3 /h]<br />
Air Flow Rate [m 3 /h]<br />
420<br />
400<br />
380<br />
360<br />
340<br />
320<br />
300<br />
280<br />
260<br />
240<br />
220<br />
200<br />
180<br />
160<br />
1000<br />
950<br />
900<br />
850<br />
800<br />
750<br />
700<br />
650<br />
600<br />
550<br />
500<br />
450<br />
400<br />
350<br />
300<br />
80TRN412-62 and 80TRN417-62<br />
Installation<br />
Depth<br />
6m<br />
80TRN417-62<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
10m<br />
0 0.02 0.04 0.06 0.08<br />
Dicharge Pressure of Blower [MPa]<br />
80TRN412-62<br />
100TRN424-62 and 150TRN440-62<br />
150TRN440-62<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
Installation<br />
Depth<br />
6m<br />
8m<br />
10m<br />
100TRN424-62<br />
0 0.02 0.04 0.06 0.08<br />
Discarge Pressure of Blower [MPa]<br />
10m<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
8. About Noise<br />
Suction noise will be generated at the suction silencer while the gas to be handled is being sucked by the submersible<br />
aerator. “8-2. Measured Sound Pressure Level Data” shows the sound pressure level of each aerator. Note that<br />
these sound pressure level data are those measured at an indoor test facility in our factory and are not the<br />
guaranteed figures that are expected at your site. Also note that the sound pressure level may vary depending on<br />
various factors like piping condition.<br />
■ 8-1. Measured Point and Condition<br />
■ 8-2. Measured Sound Pressure Level Data<br />
Air-inlet Bore<br />
[mm]<br />
32<br />
50<br />
80<br />
Silencer 1m<br />
Sound Level Meter<br />
1.6m<br />
Model<br />
Motor Output<br />
[kW]<br />
32TRN2.75 0.75<br />
32TRN21.5 1.5<br />
50TRN42.2 2.2<br />
50TRN43.7 3.7<br />
50TRN45.5 5.5<br />
80TRN47.5 7.5<br />
80TRN412 12<br />
80TRN417 17<br />
100 100TRN424 24<br />
150 150TRN440 40<br />
20<br />
Factory Structure<br />
Air-inlet Piping<br />
(PVC Flexible Hose, 10m)<br />
1m from the<br />
Silencer<br />
A-weighted<br />
Installation<br />
Sound Pressure<br />
Water Depth h<br />
[m]<br />
Level<br />
[dB(A)]<br />
1.5 53<br />
3.5 54<br />
1.5 53<br />
3.5 58<br />
2.5 61<br />
3.6 61<br />
2 66<br />
4 70<br />
2 69<br />
4 70<br />
2 71<br />
4.5 68<br />
3 72<br />
6 73<br />
3 74<br />
6 72<br />
4.5 73<br />
6 74<br />
3.5 70<br />
6 74<br />
The Inside of the<br />
Factory Structure<br />
Back Ground<br />
Noise Level<br />
[dB(A)]<br />
✳ Measurements of the sound pressure level have been carried out in accordance with JIS B 8346-1991, “Fans, Blowers and<br />
Compressors - Determination of A-weighted Sound Pressure Level”.<br />
✳ The equipment used for the measurement was a standard sound level meter that complies with JIS C 1502.<br />
✳ Frequency correction “A” and “SLOW” time weighting were used for the sound level meter.<br />
✳ The sound pressure level data are those that have been calculated from the average sound pressure levels measured at<br />
four (4) points, all of which are located at the same height of 1.6m from the floor but are equally distributed to four-way to<br />
the distance of 1m away from the silencer.<br />
W.L<br />
Submersible<br />
Aerator<br />
43<br />
43<br />
43<br />
43<br />
43<br />
42<br />
42<br />
45<br />
45<br />
49<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> (02) 8865 3500
KE & KM Bar Screens<br />
Mechanically cleaned bar screens; designed for the small plant inflows to<br />
remove solids from the wastewater, eliminating solids from aeration &<br />
Clarification tanks. Screen capacity range from 1 GPM to 690 GPM. Bar<br />
spacing range from 1mm to 50mm. Screen is fabricate in 304 stainless steel for<br />
corrosion resistance.<br />
APPLICATION<br />
, Primary treatment at a factory wastewater treatment plant<br />
, Screening suspended solid from kitchen effluent at hotel, factory, hospital, etc.<br />
, Screening suspended solid from wastewater at small scale wastewater facility<br />
The KE/KS SERIES are front-type mechanical bar screens in which major parts are made of 304<br />
stainless steel. The saw teeth on each rake travel between screen bars, which prevents foreign<br />
matters from lodging in the screen bars. The KS-series has an eccentric roller mechanism that pulls<br />
the rake out of the screen bars at the solids releasing point and eliminates the jamming of solids.<br />
The KM/KMA SERIES are rear-type mechanical bar screens in which major parts are made of 304<br />
stainless steel. The chain and sprocket do not come in contact with the liquid that prevents sticking<br />
of solids to the rotating parts. Being a self-standing design, it can be directly installed to a Ushaped<br />
waterway.<br />
Discharge<br />
Bore (mm)<br />
TRN Submersible Aerator<br />
The TRN is designed for very high oxygen transfer efficiency and to mix entrained solids.<br />
, Non-clog impellers.<br />
, Horsepower ranges from 1 hp to 50 hp.<br />
, Can operate in water depth of 32 feet with supplemental blower.<br />
, Powerful stirring and mixing capabilities for convectional circulation.<br />
, Compact shape and design.<br />
, Self aspiration of oxygen eliminates need for compressed air.<br />
FHP Series decanting pump<br />
The FHP-series is a decanting pump with a device for monitoring the sludge surface. The pump<br />
ensures that only supernatant liquid is discharged, without any sediment.<br />
FSP Series skimmer pump<br />
The FSP-series is a scum skimmer incorporating a jet injector. It guarantees a stable sucking process<br />
even if water, air, and suspended matter are drawn in from water surface simultaneously.<br />
Model Motor<br />
Output<br />
KW<br />
Discharge<br />
Bore (mm)<br />
Phase Starting<br />
Method<br />
Model Motor<br />
Output KW<br />
Speed Max. Solid<br />
Handling<br />
mm<br />
p 11<br />
Phase Starting<br />
Method<br />
Cable<br />
length<br />
m<br />
50 4-FSP 0.4 3-phase d.o.l. 3000 16 6<br />
50 8-FSP 0.75 3-phase d.o.l. 3000 22 6<br />
Dry Weight kg<br />
FREE STANDING<br />
Head Max.<br />
m<br />
Capacity max./<br />
min<br />
40 FHP2-3 0.25 Capacitor 29.5 8 200 6<br />
40 FHP2-3T 0.25 Capacitor 27.5 8 200 6<br />
50 FHP-4 0.4 single Capacitor 29 10 280 6<br />
50 FHP-4T 0.4 3-phase d.o.l. 27 10 280 6<br />
50 FHP3-8T 0.75 3-phase d.o.l. 27.5 13 420 6<br />
80 FHP2-15T 1.5 3-phase d.o.l. 60 11 800 6<br />
Cable<br />
length<br />
m<br />
<strong>Pump</strong> selection software available … <strong>Australian</strong> <strong>Pump</strong> 02 8865 3500<br />
TRN, FHP, KE & KM SERIES
Equipment Selection Guide<br />
Sewage/waste<br />
water pumps<br />
Effluent<br />
<strong><strong>Pump</strong>s</strong><br />
Type Model Discharge bore mm Motor Output kW Feature<br />
Corrosion<br />
resistant<br />
Explosion proof<br />
Corrosion<br />
resistant<br />
B 50-800 0.4-110 Basic sewage pump<br />
BZ 80-100 1.5-15 Basic sewage pump with large solid passage<br />
C 50-100 0.75-15 Basic sewage pump with cutter mechanism<br />
U 40-80 0.25-3.7 Vortex sewage pump with 2 pole motor<br />
UZ 50-100 1.5-11 Vortex sewage pump with large solid passage<br />
UT 50 0.4 Vortex sewage pump with single phase motor<br />
PU 40-80 0.15-1.5 Vortex sewage pump - resin<br />
PN 40-50 0.25-1.5 Semi-vortex wastewater pump - resin<br />
MG 32-50 1-3.7 High head grinder pump<br />
BQ 50-100 0.4-3.7 Cast ss version of B series<br />
CQ 50-100 0.75-3.7 Cast ss version of C series<br />
BX 80-100 1.6-3.8 Explosion proof version of B series<br />
CX 80-100 1.6-3.8 Explosion proof version of C series<br />
UX 50-80 1.6-4 Explosion proof version of U series<br />
PSF 40-50 0.25-1.5 High head effluent pump - resin<br />
SF 50-80 0.75-11 Semi-open impeller, for high head pumping<br />
OM 32 0.15 Semi-vortex effluent pump - resin<br />
SQ 40-50 0.25-0.75 Lightweight ss effluent pump<br />
SFQ 50-80 0.4-11 Chemical effluent pump - cast ss<br />
TM 40-50 0.25-0.75 Seawater pump - titanium & resin<br />
Blower RS 20-150 0.4-45 Rotary air blower<br />
Water<br />
Aerator<br />
TRN<br />
BER<br />
32-150<br />
25-50<br />
0.75-40<br />
0.75-5.5<br />
Submersible self aspirating aerator<br />
Submersible axial-flow type aerator<br />
Treatment Skimmer FSP 50 0.4-0.75 Floating scum skimmer<br />
Equipment Decanting pump FHP 40-80 0.25-1.5 Float type decanting pump<br />
Bar Screen<br />
KE/KS<br />
KM/KMA<br />
-<br />
-<br />
-<br />
-<br />
Automatic mechanical bar screen (front)<br />
Automatic mechanical bar screen (rear)<br />
Dewatering pump range also available … contact <strong>Aussie</strong> <strong><strong>Pump</strong>s</strong> for more details<br />
<strong>Australian</strong> <strong>Pump</strong> <strong>Industries</strong> Pty Ltd<br />
7 Gladstone Road, Castle Hill NSW 2154<br />
Ph: (02) 8865 3500 Fax: (02) 9894 4240<br />
www.aussiepumps.com.au<br />
info@aussiepumps.com.au