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Home> pneumatic valve >> ZMAMpneumatic diaphragm cut-off valve
  • Product number:MC-000000004321
  • Product name:pneumatic diaphragm cut-off valve
  • Product Type:ZMAM
  • Product nameplate:SAIC
  • Project Category:pneumatic valve >>
  • Manufacturer:Shanghai Automation Instrumentation Co., Ltd.
  • Sales unit: Shanghai Automation Instrumentation Marketing Center
  • Information download:Click to enter the download page  
  • Introduction
  • Specifications
Pneumatic diaphragm cut-off valve, is the execution unit of pneumatic unit combination instrument. Simple structure, large operation force, small size, light weight, small flow resistance, large capacity, good sealing, convenient maintenance. Widely used in petroleum, chemical, metallurgy, power, textile for automatic control system
Nominal diameter DN(mm)
15
20
25
32
40
50
65
80
100
125
150
200
Rated flow coefficient  kv
Sleeve
 
 
11
20
30
48
75
120
190
300
480
760
Single-seat
5
7
11
20
30
48
75
120
190
300
480
760
Three-way
Rated travel (mm)
8
12
20
25
40
50
Allowed leakage
Hard sealing（L/H）
Sleeve5×10-5rated capacity,  single-seat、three-way 1.2×10-7×rated capacity
Soft sealing（ml/min）
None
Media temperature  ℃
-200～+200、-40～+450
Active area of diaphragm（cm2）（diaphragm cut-off valve）
100
200
400
600
1000
Nominal pressure PN(MPa)
1.6　4.0　6.4
Allowed pressure difference （MPa）
Single-seat
6.4
6.4
3.8
2.5
2.9
1.8
2.0
1.3
0.83
0.8
0.55
0.52
Sleeve
6.4
Signal pressure  KPa
200（diaphragm ）
Valve body
Ht200 ZG230-450\ZG1Cr18Ni9Ti
Valve sleeve
1Cr18Ni9Ti Cr18Ni12Mo2Ti
Valve spool、valve seat
1Cr18Ni9Ti Cr18Ni12Mo2Ti
Filler
PTFE    flexible graphite
Components
Air filter regulator 、solenoid valve 、feed back device of valve position
 
 

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