KDG Rotameter

process measurement solutions
KDG Rotameter ®
variable area flowmeter
metal tube series 250
Technical characteristics
Features
w Choice of connections
w Industry standard length
w High accuracy calibration
option
w Robust design
w Magnetically coupled local
indicator, transmitter
option
w Alarm options
w PTFE versions available
w Fastrack delivery on
selective models
Applications
The metal tube 250 series variable
area flowmeter is a specially
designed instrument for measuring
the flow of liquids and gases.
Its robust design makes it highly
suitable for use on hazardous and
corrosive applications as found in
most industrial processes.
MATERIALS
Body & stops: 316 Stainless steel, PTFE optional
Float: 316 Stainless steel, PTFE optional
Indicator housing: Aluminium, 316 st. st. optional
Finish: Polyester paint, epoxy paint optional
Backplate: Anodised alloy
Connections: 316 Stainless steel
PERFORMANCE
Accuracy: +/-2% of full scale.
Class 1.6 available on request.
PTFE version +/-3% of max. flow
Turndown ratio: 1 to 10 nominally
Protection : IP65
Data sheet
1718
Principle
The instrument must be mounted in
a vertical pipe with fluid circulation
in the upwards direction.
The self guiding cylindrical float is
positioned inside a tapered tube.
When the flow passes through the
meter the float rises to a position of
equilibrium where the weight of the
float is balanced by the net force
due to the fluid pressure. The float
is magnetically coupled to a pointer
indicating the rate of flow on the
front scale.
Description
The instrument comprises:
w A body formed in stainless steel
with fixed flange connection
w A stainless steel or an alloy float
fitted with a magnet, with guide
rods at each end
w Two end stops in stainless steel
used as a guide for the float
w An indicator housing unit in
aluminium alloy.
MECHANICAL
Fluid temp.: -40 o C to +200 o C, high temp. versions
available on request
(PTFE reduced temp.)
Ambient temp.: -40 o C to +80 o C (with transmitter +70 o C)
Max. operating
pressure: 40 bar standard, higher on request
Connections: Flanged ANSI or BS4504
Flange rating options, threaded ends
or hygienic connections refer to factory
EMC
COMPLIANCE
Emissions: EN50081-1 (1992)
Immunity: EN50082-1 (1992)

Dimensions
Size
15
1⁄2"
25
1"
50
2
80
3"
100
4"
Standard model dimensions
PN ∅ D ∅ K ∅ L N A
16
40
150 lbs 88.9
300 lbs 95.2
16
40
150 lbs 107.9
300 lbs 123.8
16
40
150lbs
300 lbs 165.1
16
150 lbs 190.5
16
95
95
115
115
165
165
152.4
200
220
150 lbs 228.6
65
65
60.3
66.7
85
85
79.4
88.9
125
125
120.6 19
127
160
152.4 19
180
14
14
15.9
15.9
14
14
15.9
19
18
18
19
18
18
190.5 19
4
4
4
4
4
4
4
4
4
4
4
8
8
4
8
8
80
80
80
80
92
92
92
92
108
108
108
108
122.5
122.5
124
124
Flow range table Maximum capacities shown. Turndown ratio typically 10:1
Normal
size
15
(1⁄2")
25
(1")
50
(2")
80
(3")
or
100
(4")
M
code
M1
M2
M3
M4
M5
M6
M5
M6
M7
M8
M9
M10
M8
M9
M10
M11
M12
M13
M11
M12
M13
M14
M15
M16
M17
LIQUID GAS PRESSURE DROP PTFE LINED
Max liquid
flow rates
SG = 1
100 l/h
160 lh
250 l/h
400 l/h
600 l/h
1 m 3 /h
600 l/h
1 m 3 /h
1.6 m 3/ h
2.5 m 3 /h
4 m 3 /h
6 m 3 /h
2.5 m 3 /h
4 m 3 /h
6 m 3 /h
10 m 3 /h
16 m 3 /h
25 m 3 /h
10 m 3 /h
16 m 3 /h
25 m 3 /h
40 m 3 /h
50 m 3 /h
60 m 3 /h
80 m 3 /h
MG
code
MG2
MG3
MG4
MG5
MG6
MG5
MG6
MG7
MG8
MG9
MG10
MG8
MG9
MG10
MG11
MG12
MG13
MG11
MG12
MG13
MG14
MG15
MG16
MG17
Flow capacity
Air - 20°C Atmospheric
pressure
5 m 3 /h
7.5 m 3 /h
12 m 3 /h
18 m 3 /h
30 m 3 /h
18 m 3 /h
30 m 3 /h
48 m 3 /h
75 m 3 /h
120 m 3 /h
180 m 3 /h
75 m 3 /h
120 m 3 /h
180 m 3 /h
300 m 3 /h
480 m 3 /h
750 m 3 /h
300 m 3 /h
480 m 3 /h
750 m 3 /h
1000m 3 /h
1500m 3 /h
1800m 3 /h
2400m 3 /h
mbar
35
60
60
60
65
70
45
80
55
80
85
125
55
80
55
80
95
130
60
90
60
125
140
165
220
Installation and maintenance
Make sure the Rotameter is positioned as upright as possible and fluid flow is upwards.
Keep the inside of the instrument in a good clean state.
Code
MP
MP2
MP3
MP4
MP5
MP6
MP5
MP6
MP7
MP8
MP9
MP8
MP9
MP10
MP11
MP10
MP11
MP12
MP13
Max liquid
flow
SG = 1
160 l/h
250 l/h
400 l/h
600 l/h
1 m 3 /h
600 l/h
1 m 3 /h
1.6 m 3 /h
2.5 m 3 /h
4 m 3 /h
2.5 m 3 /h
4 m 3 /h
6 m 3 /h
10 m 3 /h
6 m 3 /h
10 m 3 /h
16 m 3 /h
25 m 3 /h

Electronic transmitter option
Standard version (Pointer and scale plate indicator) – T5 code
Output signal 4 to 20mA proportional from 10 to 100% of flow range
4mA corresponds to 0 of the scale (position marked 0)
5,6 mA corresponds to 10% of tfull scale
(first measuring value 10%).
20mA corresponds to 100% of full scale
(top measuring value 100%).
Transmission 2 wires (connection : see alarm)
Power supply UB = 8 to 24V dc
Linearity 0,5% of max. current
Temperature deviation < 0.05% /°C
Ambient temperature T= –25 to + 65°C in operation
Type i250 – Intrinsic safety version – "T6 code" (specify when ordering)
ATEX II 2 G EExia IIC T6
Certificate N° LCIE01ATEX6063X
IS Characteristics C internal = 0 nF, L internal = 1.8 mH,
li = 100mA, Pi = 0.75W
Only connect to an
approved source in EEx ia lIC T6 max.
IS version permissible ambient temperature 65°C.
IS power supply Voltage UB

Ordering information
Code Connection code
15 ISO PN Flange NFE 29203/ NE1092 - DN15
25 ISO PN Flange NFE 29203/ NE1092 - DN25
50 ISO PN Flange NFE 29203/ NE1092 - DN50
80 ISO PN Flange NFE 29203/ NE1092 - DN80
100 ISO PN Flange NFE 29203/ NE1092 - DN100
1⁄2" Flange ANSI B15-5 DN 1⁄2"
1" Flange ANSI B15-5 DN 1"
2" Flange ANSI B15-5 DN 2"
3" Flange ANSI B15-5 DN 3"
4" Flange ANSI B15-5 DN 4"
Code Construction code
C1 Stainless steel 316, ISO PN16 Flange RF
C2 Stainless steel 316, ISO PN40 Flange RF
C3 Stainless steel 316, Flange ANSI 150# RF
C4 Stainless steel 316, Flange ANSI 300# RF
C5 PTFE Construction, ISO PN16 Flange (RF)
C6 PTFE Construction, Flange ANSI 150# RF
CX Special Construction (on request)
Code Measuring element code
M - See flow range table
Code Transmitter
T6 I.S. magnetic transmitter 4-20mA II2G ATEX EExiaIICT6 (standard housing IP65)
T5 Standard magnetic transmitter 4-20mA (standard housing IP65)
Ti Not yet available -
T4 Magnetic transmitter 4-20mA (exposion -proof housing) II2G ATEX EExdIICT6
Code Alarms
S1 1 low alarm (without relay)
S2 1 high alarm (with relay)
S3 2 high and low alarms (without relay)
S4 1 low alarm (with relay)
S5 1 high alarm (with relay)
S6 2 high and low alarms (with relay)
S7 2 high and low alarms explosion-proof housing (II2G ATEX EExdIICT6)
Code Options
Z1 Damping system (essential for gas flow)
Z2 High temperature shield
Z3 Degreasing and specific packaging for oxygen
Z4 Accuracy class 1.6 (liquids within viscosity limits)
Z5 Intrinsic safety for codes T and/or S
Z6 Special scale
Z7 IS power supply + retransmission
Z9 Epoxy painted indicator housing
Z10 Stainless steel indicator housing
t t t t t t
250 - 25 - C1 - M8 - T4 - S3 - Z1-Z6
Information required for quote or order:
w Fluid type to be measured.
w Maximum and minimum flow rate required.
w Specific gravity and viscosity at operating conditions.
w Normal working temperature of fluid to be measured.
Solartron Mobrey Limited
KDG Instruments Division
Crompton Way Crawley
West Sussex RH10 9QR
Tel: 01293 525151
Fax: 01293 530849
e-mail: sales@solartron.com
www.solartronmobrey.com
w Maximum temperature of fluid to be measured.
w Normal pressure of fluid to be measured.
w Maximum pressure of fluid to be measured.
w Scale flow units M 3 /hr or litres per min.
Solartron Mobrey USA tel: 281 398 7890
Solartron Mobrey GmbH Deutschland tel: 0211/99 808-0
Solartron Mobrey Ltd China tel: 021 6353 5652
Solartron Mobrey sp z o o Polska tel: 022 871 7865
Solartron Mobrey AB Sverige tel: 08-725 01 00
Solartron Mobrey SA France tel: 01.30.17.40.80
Solartron Mobrey SA-NV Belgium tel: 02/465 3879
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The right is reserved to amend details given in this publication without notice
1718
Jan 05