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TYPE
SFM-1 SCRAPER FLOW METER
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Didoh positive displacement rotary vane meter,
interchange-able with Smith PD Meter
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Measure the volume flow in the enclosed pipes.
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More accurate flow measure and cotrol
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Also carry out remote measurement, display and
control.
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High accuracy, excellent repeatability, wide range
ability and not so strict demand for straight pipe
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Suitable for those fluids with higher viscosity,
and the change of viscosity will not have great influence on measurement
value.
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For non-corrosive liquid such as crude oil, oil,
petroleum chemical, food, solvent,
paint
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Size:
2" ～ 16"
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Precision:
0.1 , 0.2 , 0.5
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Pressure: :
Cast iron & stainless steel: class 150 ～ class 400
Cast
steel: class 300 ～
class 900
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Temperature of medium:
A type： -40～ +65℃
B
type: -40 ～ +93℃
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Viscosity of medium (mPa.s):
0.3～ 5000
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Connection :
Flange ( NIST, BSPT, NPT )
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Display：
99999999 （accumulative）
999999（single）
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Output：
pulse, 4～20mADC,1～5VDC,4～20mA
+HART
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Sustain : RS232 or RS485
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Explosion-proof class ： IP65
Dimension:
( in )
|
Size
|
Pressure
|
A
|
B
|
C
|
D
|
F
|
|
2
|
Class 150 300
|
14.2
|
9.3
|
22.3
|
11.2
|
3.5
|
|
Class 400
|
14.2
|
9.3
|
22.3
|
12.8
|
3.5
|
|
3
|
Class 150 300
|
18.1
|
11.2
|
26.3
|
16.9
|
4.6
|
|
Class 400
|
18.1
|
11.2
|
26.3
|
17.7
|
4.6
|
|
4
|
Class 150 300
|
19.7
|
18.1
|
26.7
|
17.6
|
5.5
|
|
Class 400
|
19.7
|
18.1
|
26.7
|
19.8
|
5.5
|
|
6
|
Class 150 300
|
25.6
|
17.9
|
34.6
|
21.7
|
6.5
|
|
Class 400
|
25.6
|
17.9
|
34.6
|
21.7
|
6.5
|
|
8
|
Class 150 300
|
27.6
|
19.2
|
38.1
|
24
|
9
|
|
Class 400
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27.6
|
19.2
|
38.1
|
25.7
|
9
|
|
10
|
Class 150 300
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39.4
|
22.3
|
44.6
|
29.8
|
11
|
|
Class 400
|
39.4
|
22.3
|
44.6
|
31.9
|
11
|
|
12
|
Class 150 300
|
39.4
|
27.8
|
55
|
35.4
|
15
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Class 400
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39.4
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27.8
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55
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38.6
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15
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PRINCIPLE
The scrapers could be pushed to
rotate together with the rotor by the driving force of fluid. In the
process of rotation, individual scrapers would stretch out or draw back in
sequence one after another under the action of cam, thus continuously
forming a measuring cavity of changing shape between the meter wall and
scrapers. Since the volume of cavity is constant, turns of rotor should be
proportional to the volume flow of passing fluid. And with the help of
reduction gear, the volume flow could be displayed by the counter of flow
meter.
FLOW
Rate ( m3/h )
|
Size ( in )
|
Viscosity ( m.Pa.s)
|
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0.3-1mPa.s
|
1-5mPa.s
|
5-20mPa.s
|
20-100mPa.s
|
100-400mPa.s
|
|
2
|
9-28
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8-31.5
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7-35
|
7-35
|
5-31.5
|
|
3
|
18-56
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16-63
|
14-70
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14-70
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10-60
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|
4
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25-80
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23-90
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20-100
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20-100
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15-90
|
|
6
|
70-210
|
60-240
|
54-270
|
54-270
|
40-240
|
|
8
|
106-320
|
90-360
|
80-400
|
80-400
|
60-360
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|
10
|
160-480
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135-540
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120-600
|
120-600
|
90-540
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12
|
260-800
|
225-900
|
200-1000
|
200-1000
|
150-900
|
|
16
|
540-1600
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450-1800
|
400-2000
|
400-2000
|
300-1800
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