Industrial Vacuum Valves Designed For Millions of Cycles
• No bellows or o-rings to wear
• High Conductance From 25 Thru 50 mm
• Ideal for Roughing and Vent Valve Applications
• Standard NW (KF, QF) Ports
Cv Ratings By Size:
• B50/NW25: Cv = 21
• B70/NW40: Cv = 35
• B80/NW50: Cv = 60
• More than 5 million operations without maintenance.
• Leak rate lower than 1x10-7 Std. cc/sec (Helium).
• Pressure working range: From atmosphere to 1x10-5 Torr
• Compressed air connection: From 75 to 100 PSI
• Closing and opening speed < 250 milli seconds
Valve body : Aluminum alloy
Inner parts: Stainless steel and aluminum alloy with Buna seat
Pneumatic actuator: Pneumatically operated valves with special face seal. Vacuum-tight against the atmosphere.