Technical parameters
Nominal diameter: DN400~2000mm
Nominal pressure: PN0.25~1.6MPa
Applicable medium: water, hot water, etc
Applicable temperature: ≤100℃
Flange connection size: GB4216.2 ~ 4216.5, GB/T17241.6
Pressure test: GB/T13927
Performance Specification for piston flow control valve
|
Nominal pressure(MPa)
|
Nominal diameter(mm)
|
Test pressure(MPa)
|
Applicable medium
|
Suitable temperature
|
|
shell
|
seal
|
|
0.25
|
400～2000
|
0.375
|
0.275
|
Water, hot water, etc
|
≤100℃
|
|
0.6
|
200～1600
|
0.9
|
0.66
|
|
1.0
|
200～1600
|
1.5
|
1.1
|
|
1.6
|
200～1200
|
2.4
|
1.76
|
Executive standard of piston flow control valve
|
Pressure test
|
Flange connection size
|
|
GB/T13927
|
GB4216.2～4216.5,GB/T17241.6
|
Material of main parts of piston flow control valve
|
Material Science
|
Part name
|
|
HT200,HT250,QT450-10
|
Valve body, end cover, connecting rod frame, flange pipe and crank
|
|
2Cr13、1Cr18Ni9Ti
|
Stem, pin, piston
|
|
1Cr18Ni9Ti
|
Valve body sealing ring
|
|
NBR
|
Piston sealing ring
|
|
QT450-10
|
Connecting rod
|
|
ZCuAI10Fe3、ZCuZn38Mn2Pb2
|
Bearing
|
|
NBR
|
Packing
|
Main connecting dimensions of piston flow control valve
|
PN
|
DN
|
L
|
L1
|
L2
|
H
|
H1
|
Do
|
A
|
B
|
|
0.25
|
400
|
800
|
715
|
308
|
980
|
335
|
250
|
345
|
390
|
|
450
|
900
|
749
|
347
|
1100
|
400
|
250
|
410
|
440
|
|
500
|
1000
|
792
|
383
|
1180
|
450
|
300
|
460
|
500
|
|
600
|
1200
|
847
|
458
|
1250
|
500
|
300
|
510
|
600
|
|
700
|
1400
|
920
|
528
|
1390
|
600
|
300
|
580
|
700
|
|
800
|
1600
|
980
|
599
|
1530
|
700
|
360
|
680
|
800
|
|
900
|
1800
|
1030
|
674
|
1650
|
800
|
360
|
790
|
900
|
|
1000
|
2000
|
1105
|
744
|
1800
|
900
|
400
|
860
|
1000
|
|
1200
|
2400
|
1375
|
852
|
2010
|
1000
|
400
|
950
|
1130
|
|
1400
|
2800
|
1380
|
1031
|
2230
|
1250
|
400
|
1250
|
1380
|
|
1600
|
3200
|
1490
|
1183
|
2480
|
1450
|
400
|
1500
|
1600
|
|
1800
|
3600
|
1780
|
1325
|
2720
|
1650
|
400
|
1750
|
1750
|
|
2000
|
4000
|
1910
|
1476
|
2930
|
1850
|
400
|
2000
|
1950
|
|
0.6
|
200
|
400
|
600
|
162
|
820
|
175
|
200
|
150
|
180
|
|
250
|
500
|
625
|
198
|
830
|
185
|
200
|
200
|
240
|
|
300
|
600
|
650
|
233
|
880
|
235
|
200
|
250
|
280
|
|
350
|
700
|
690
|
273
|
930
|
285
|
250
|
300
|
330
|
|
400
|
800
|
715
|
308
|
980
|
335
|
250
|
345
|
390
|
|
450
|
900
|
749
|
347
|
1100
|
400
|
300
|
410
|
440
|
|
500
|
1000
|
792
|
383
|
1180
|
450
|
300
|
460
|
500
|
|
600
|
1200
|
847
|
458
|
1250
|
500
|
300
|
510
|
600
|
|
700
|
1400
|
920
|
528
|
1390
|
600
|
360
|
580
|
700
|
|
800
|
1600
|
980
|
599
|
1530
|
700
|
360
|
680
|
800
|
|
900
|
1800
|
1030
|
674
|
1650
|
800
|
400
|
790
|
900
|
|
1000
|
2000
|
1105
|
744
|
1800
|
900
|
400
|
860
|
1000
|
|
1200
|
2400
|
1250
|
890
|
2010
|
1050
|
400
|
950
|
1200
|
|
1400
|
2800
|
1380
|
1031
|
2230
|
1250
|
400
|
1250
|
1400
|
|
1600
|
3200
|
1490
|
1183
|
2480
|
1450
|
400
|
1500
|
1600
|
|
1.0
|
200
|
400
|
600
|
162
|
820
|
175
|
200
|
150
|
200
|
|
250
|
500
|
625
|
198
|
830
|
185
|
200
|
200
|
250
|
|
300
|
600
|
650
|
233
|
880
|
235
|
250
|
250
|
300
|
|
350
|
700
|
690
|
273
|
930
|
285
|
250
|
300
|
350
|
|
400
|
800
|
715
|
308
|
980
|
335
|
300
|
345
|
400
|
|
450
|
900
|
749
|
347
|
1100
|
400
|
300
|
410
|
450
|
|
500
|
1000
|
792
|
383
|
1180
|
450
|
300
|
460
|
500
|
|
600
|
1200
|
847
|
458
|
1250
|
500
|
360
|
510
|
600
|
|
700
|
1400
|
920
|
528
|
1390
|
600
|
360
|
580
|
700
|
|
800
|
1600
|
980
|
599
|
1530
|
700
|
400
|
680
|
