VCDMHF / VCDHHF series

High Pressure High Flow Diaphragm Valve – Manual Operation

A compactly designed body with minimal dead space. 

Body materials comply with SEMI F-20, “Specification for 316LSS Materials for UHP (Ultra High Purity) Grade Semiconductor Manufacturing Applications” 

Maximum flow capacity

Minimal particle generation

Minimal contributions of moisture, oxygen and hydrocarbon with UNILOK’s own special cleaning process in a certified clean room

Excellent finish level of wetted areas with UNILOK’s own electro polish process

Elgiloy® diaphragm material with strong durability as well as corrosion resistance for long cycle life

PCTFE seat material with remarkable chemical and thermal resistance

For information on how to order and detailed dimensions view the page below

If you have any questions or need any additional information please reach out to one of our representatives

Specifications

Size1/2″ 
Orifice Size8.8 
Cv Value1.30.8
Max. Working Pressure103bar207bar
(1500psig)(3000psig)
   
Max. Working Temperature-10~40°C(-14~104°F ) 
Internal Leakage≤1×10​-9 atm.cc/s 
Allowance – He 
(Holding Time – Min 30 sec) 
   
   
External Leakage≤1×10​-9 atm.cc 
Allowance – He 
(Holding Time – Min 1 min) 

For more information on our full line of valves, please contact a sales representative.