pneumatic piston cut-off valve

Model：ZSPC、ZSNC
Category：Pneumatic Valve
origin：SHANGHAI

SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD

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	Contact us
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