Model: ZHA BC, ZSP NC Series Pneumatic Shut Down Valves
Model &Name: ZHA BC,ZSP NC Series Pneumatic Shutoff Valves
Characteristics:Diaphragm type (ZHAC) and Piston type(ZSPC) , two-position two-way and two-position three-
way , normal temperature,medium temperature, and low temperature ,leakage Class VI; easy maintenance.
The structure andaccessories of the actuators and valves can be varied according to thedifferent
temperature, working pressure differential, switching speed, andprotection requirements;
Pilot structure “C1X”is available when the pressure differential exceeds allowable value;
Bead welding withStellite Alloy for Valve plug and Valve seat;
G1/2”-DN50 is usually assembled withVulcanizing machine;
S7(8)-6732 type(J641-B Series) Program-controlled pneumatic shutoff valves are also available.
NominalDiameter (DN): G1/2” 、20~200mm
NominalPressure (PN):1.6、4.0、6.4MPa
Spring Range (kPa):Diaphragm Type: 20-250; Piston Type: 40-200, 100-200, 200-330, 350-480
OperationTemperature (℃): Normal Temperature type: Soft Seal: -20~+200; Hard Seal:-40~+450; Low
Temperature type: -60~-100, -100~-200;-200~-250
Material:WCB, 302, 304, 316(CF8M),ZHSi80-3(Low)
Flange Standard:JB/T79-94
Shutoff Period(s): DN20-25: ≤0.5; DN40-50: ≤1; DN65-200: 1.5-4