Fkm viton sealing bonnet.
Vacuum research gate valve.
Hva is the top manufacturer and supplier of vacuum valves high vacuum valves and ultra high vacuum solenoid valves to leading vacuum technology innovators.
By total leak we mean that each completed valve is tested in a helium filled bag.
The standard valve for vacuum isolation applications in research and industry.
T 1 800 248 8254.
775 359 4442 775 359 4442 toll free.
F 1 888 658 7983.
Patented the first gate valve to provide 100 unobstructed flow and a rotary rather than sliding vacuum seal.
No scuffing of the gate seal when opening or closing by using a 4 bar linkage.
All vacuum research valves have total leak rates of less than 5 x 10 10 std cc sec.
100 chapel harbor drive 4 pittsburgh pa 15238.
All vacuum research gate valves are available with 3 types of actuators.
Electric motor air or manual actuators all vacuum research gate valves are available with 3 types of actuators.
By total leak we mean that each completed valve is tested in a he filled bag.
24 trafalgar square nh 03063 1988 nashua.
Virtually every part was made by casting.
Mdc stainless steel vacuum gate valves incorporate patented c loc and uni loc gate valve locking mechanisms.
All vacuum research valves can be installed for fast close on power failure and air operated valves can be manually positioned without air or electricity.
Manual actuators are the least expensive.
Electric motor actuators use high torque servo motors and operate from 115v.
Manual actuator push rod pneumatic actuator double acting sealing technology.
Prior to this it was common practice even in large research establishments to upgrade general service valves for vacuum use by winding actuator shaft gaskets from string soaked in an apiezon grease.
Rohs compliant all valves are rohs 2002 95 ec compliant.
Stainless steel lpss gate valve instruction parts list end operated gate valve manual parts list op 2 75 con n1 c p lss valve manual parts list op series gate valve manual parts list angle valves spare parts list built before 2001 angle valve manual parts list august 2002 later 3 position aluminum angle valve manual parts list.
