Automatic Gas Power Station Valve Quick Open And Close PN16 PN4.0
pneumatic piston cut-off valve
ZSPC,ZSNC pneumatic piston cut-off valve, made up of pneumatic
piston actuator and cut-off body.. sealing surface of valve spool:
hard sealing and soft sealing; structure of valve spool:
single-guide flat and single-guide balanced. Impact structure,
reliable action, strict cut-off, quick open and close. Used in
automatic control system with no grainy, no impurity gas, liquid
medium
| Nominal diameter mm | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 |
| Diameter of valve seat mm | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | Contact us |
| Rated flow coefficient Kv | 6.5 | 10 | 15 | 25 | 40 | 65 | 100 | 150 | 260 | 350 | 540 |
| Nominal pressure MPa | 1.6 ； 4.0 ； 6.4 |
| Travel mm | 10 | 16 | 25 | 30 | 40 | 60 | | |
| Flow characteristics | Quick open |
| Media temperature ℃ | Soft sealing :-40～150(normal temperature ) ； hard
sealing:-40～200(normal temperature)； -40～450(medium temperature) |
| Flange size,type | PN16 according to JB79-59； PN4.0,64 according to JB/T79.2-94
concave |
| Material of valve body | ZG230-450 ； ZG1Cr18Ni9Ti；ZGOCr18Ni12Mo2Ti |
| Material of valve seat,valve spool | 1Cr18Ni9 ； 0Cr18Ni12Mo2Ti |
| Upper cover | General (normal temperature) ； heat sink(medium temperature ) |
| Components | Handwheel body,air filter regulator ,solenoid valve,feedback device
of signal |
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