Model ZK-4 Compact Vacuum Valve

Model ZK-4 compact vacuum valve is used widely for cryogenic bulk tanks .Actually, it is a vacuum probe isolation valve and works usually with a thermopile gauge tube together . When vacuum is measured by the thermopile gauge tube, it is open ; when the thermopile gauge tube is replaced, it is shut off .

Specifications

Nominal diameter:  4 mm

Nominal pressure:  86kPa   ~  106kPa

Leakage rate:  <1.0×10-9 Pa• m-3 s-1

Ambient temperature:  -40°C  ~  +70 °C

Humidity:   5%~95%

Connection type:  1/8~27NPTF