SP/10 and SP/15 - Watson-Marlow GmbH

8August 2003
SP/10, SP/15 and SP/20
heavy duty hose pumps
Features
• Highly suitable for:
- abrasive products
- corrosive products
- shear sensitive products
- viscous products
- high density products
• Self priming to 95% vacuum (5 kPa.a.)
• Can run dry, i.e. can pump without fluid
continuously
• Reversible rotation
• Can be used as a metering pump:
repeatable accuracy +/- 1%
• Replacement of hose without
dismantling pump
• Easy to clean: smooth liquid passage
without valves, cavities or glands
• No metal to metal contact
Bredel
Bredel Hose Pumps B.V.
A member of the Spirax-Sarco Engineering Group
Sluisstraat 7
P.O. Box 47
NL-7490 AA Delden
The Netherlands
Tel.: +31 74 3770000
Fax: +31 74 3761175
Internet: www.bredel.com
E-mail: hosepumps@bredel.com
• Product pumped does not contact
mechanical parts or seals
• Heavy duty bearings, greased for life
• Designed and built for high discharge
pressures
• Low noise level
• 100% positive flow (no slip)
• Only one wearing part: the pump hose
• Easy maintenance, low cost, short
down time
• Permanent lubrication of pump hose
with specially compounded food
grade lubricant
• Any drive system possible
• Represented all over de world
Option
• High liquid level control

Net motor
power [kW]
0.15
0.125
0.10
0.075
Pump speed [r.p.m.]
Capacity [l/h]
SP/10 and SP/15
How to use the curves: Intermittent duty:
1 Flow required indicates pump speed Maximum 2 hours operation followed by
2 Calculated discharge pressure minimum 1 hour stop
3 Net motor power required
4 Product temperature
5 Calculated discharge pressure
15 30 45 60 75 90 105 120
15
20
30
40
45
60
60
80
6 Maximum recommended pump speed
Net motor
power [kW]
0.35
0.30
0.25
0.20
0.15
0.10
3
3
Pump speed [r.p.m.]
Capacity [l/h]
Intermittent duty
Continuous duty
2
5
1 6
750 kPa
75
100
300 kPa
100 kPa = 1 bar
90
120
0 kPa
105
140
4
120
160
15 30 45 60 75 90 105 120
Intermittent duty
Continuous duty
15
75
30
150
2
5
1 6
45
225
750 kPa
60
300
300 kPa
75
375
90
450
0 kPa
100 kPa = 1 bar
105
525
4
120
600
Product
temperature
[°C]
40
50
60
70
80
Product
temperature
[°C]
40
50
60
70
80
Type SP/10
Inner diameter pump hose Ø 10 [mm]
Minimum starting torque 47 [Nm]
Capacity per revolution 0,022 [l]
Maximum discharge pressure 750 [kPa]
7,5 [bar]
Type SP/15
Inner diameter pump hose Ø 15 [mm]
Minimum starting torque 60 [Nm]
Capacity per revolution 0,083 [l]
Maximum discharge pressure 750 [kPa]
7,5 [bar]

Ø C
=G1=
=G2=
=G=
A1
A
SP/10 and SP/15
Dimensions SP/10 and SP/15
H (8x)
L
X1 Y
D
Type A A1 B C D E F F1 G G1 G2 H K L T X1 Y Z d l u t
SP/10 196 293 116 ø194 117 200 28 55 162.6 67.4 175 ø16 28 90-120 85 14 ø9.0 ø18k6 39 6 20.5
M8
SP/15 260 403 195 ø288 142 235 33 60 249.5 103.4 175 ø20 33 90-120 85 14 ø9.5 ø22k6 45 6 24.5
All dimensions in [mm]
Principle of operation
A composite, reinforced hose, enclosed within
a casing, has inserts at both ends. These inserts
are connected to the suction and discharge lines
of the system.
Within the casing is a pressing rotor with two
specially shaped bulges at opposite points about
its centre line. The pressing rotor is mounted on
a shaft with two bearings. As the pressing rotor
rotates, the hose is totally compressed by the
bulge and the product within the hose is pushed
forward. At the front of the pump is a removable
ØK
F1
F
E
B Ø du
l
T
Ø Z (4x)
cover with an inspection facility. The pump casing
is filled to approximately halfway the casing with
a specially compounded (food grade) lubricant
which functions as a coolant as well. The patented
reinforced hose ensures that compression forces
are evenly applied across its full width.
t

Dimensions SP/20
Ø C
= G1=
SP/20
Type A A1 B C D E F F1 G G1 G2 H K L T X1 Y Z d l u t
SP/20 260 403 195 ø288 142 257 33 60 249.5 103.4 175 M8 ø22 33 90-120 85 14 ø9.5 ø22k6 45 6 24.5
All dimensions in [mm]
= G2 =
= G =
A1
A
H (8x)
L
Ø K
B
F1
F
E
X1
D
l
Y
Ø d
T
Ø Z (4x)
u
t

Net motor
power [kW]
A
How to use the curves:
Graph A
• Selection of pump size and required motor power.
• Check selection with maximum recommended pump
speed in relation to product temperature
1 Flow required indicates pump speed.
2 Calculated discharge pressure.
3 Net motor power required.
4 Product temperature.
5 Calculated discharge pressure.
6 Maximum recommended pump speed (rpm).
Intermittent duty: = 2 hrs max., 1 hr stop.
B
0.50
0.37
0.25
0.18
0.12
Pump speed [r.p.m.]
Capacity [l/h] 0
High
Low
Pump speed [r.p.m.]
3
Intermittent duty
Continuous duty
1
20
182
9
8
7
2
5
40
365
750 kPa
6
300 kPa
60
547
0 kPa
SP/20
80
730
100 kPa = 1 bar
100
912
750 kPa 7.5 bar 109 psi
500 kPa 72.5 psi
5.0 bar
250 kPa 2.5 bar
4
120
1094
Graph B
• Selection of rotor size
• Determine operating point (rpm/discharge
pressure)
7 Required pump speed
8 When operating in the light red area (= below the
red line) the Low pressure rotor is used
9 When operating in the grey area (= above the
red line) the High pressure rotor is used
Remark
20 40 60 80 100 120
Product
temperature
[°C]
40
50
60
70
80
Type SP/20
Inner diameter pump hose Ø 19 [mm]
Minimum starting torque 85 [Nm]
Capacity per revolution 0,152 [l]
Maximum discharge pressure 750 [kPa]
7,5 [bar]
• With a variable speed drive and operating in both
areas, the High pressure rotor should be used.

Bredel Hose Pumps
BPD11/08/03
Typical hose pump applications
• In water and sewage treatment sludge transportation, sludge thickening, pit/lagoon emptying,
filter press feed, centrifuge feed, digester feed, caustic,
lime slurry, flocculants, ferric chloride, activated coal,
aluminium sulphate, polymers, magnetite.
• In chemical industry ferrite slurry, peroxide, latex, resins, hydrochloric acid,
battery acid, glue, formaldehyde, sulphuric acid.
• In food industry milk products, meat products, jellies, marmalade, mayonnaise,
salads, dressings, tomato paste, fruit juices, caramel, chocolate,
egg yolk, strawberries in yoghurt.
• In breweries yeast, diatomaceous earth, flocculants, stabilizers,
filter press feed.
• In sugar industry sugar syrup, liquid sugar, molasses, glucose slurry,
foamed earth.
• In paper and ceramic industry clay slurry, china clay suspension, talcum suspension, pulp,
glue, ink, coatings, pigments, kaolin, titanium dioxide.
• In building industry mortar, foamed mortar, bentonite, cement grout,
cement injection.
• In mining industry nickel slurry, acids, cyanide, grout, coal slurry, pyrite slurry,
thickener underflow, drain cleaning.
• And many others, such as offal, fish waste, potato waste, radio active waste, blood, lye,
pharmaceutical and cosmetic products, toothpaste, soap,
detergents.
The information contained in this document is believed to be correct but Bredel Hose Pumps B.V. accepts no liability for any
errors it contains and reserves the right to alter specifications without notice.
Bredel is a registered trademark. Bredel: worldwide supplier of industrial high pressure hose pumps.