LoPro™ Soft-start Bellows Vacuum Isolation Valves
Model: lopro-dual-stage-isolation-valves
LoPro™ Soft-start Bellows Vacuum Isolation Valves
Model: lopro-dual-stage-isolation-valves
Technical Specs
Type
Low-profile, Two-stage, Soft-start, Bellows-sealed Isolation Valves
Vacuum Range
Atmosphere to 1.0 x 10-9 Torr
Port Size
NW25, NW40, NW50
Helium Leak Rate
1.0 x 10-9 std cc/sec
Cylinder Volume
Main cylinder: 1.2 - 6.4 in3, depending on configuration
Bypass: 100 in 3
Cylinder Air Pressure
90 psig ±30 psig
Limit Switch Rating
5A - 250 VAC
Single Pole, Single Throw
5A - 30 VDC
Blow-By Pressure
Main: 80 - 45 psi, depending on configuration
Bypass: 45 psi
Actuation Time
Main: 40 - 160 msec to open, 90 - 220 msec to close, depending on configuration
Bypass: 100 msec (both)
Maximum Internal Spring Closing Pressure
38 - 60 psia, depending on configuration
Maximum Bakeout Temperature
150°C
Typical Life
1,000,000 cycles
Technical Specs
Type
Low-profile, Two-stage, Soft-start, Bellows-sealed Isolation Valves
Vacuum Range
Atmosphere to 1.0 x 10-9 Torr
Port Size
NW25, NW40, NW50
Helium Leak Rate
1.0 x 10-9 std cc/sec
Cylinder Volume
Main cylinder: 1.2 - 6.4 in3, depending on configuration
Bypass: 100 in 3
Cylinder Air Pressure
90 psig ±30 psig
Limit Switch Rating
5A - 250 VAC
Single Pole, Single Throw
5A - 30 VDC
Blow-By Pressure
Main: 80 - 45 psi, depending on configuration
Bypass: 45 psi
Actuation Time
Main: 40 - 160 msec to open, 90 - 220 msec to close, depending on configuration
Bypass: 100 msec (both)
Maximum Internal Spring Closing Pressure
38 - 60 psia, depending on configuration
Maximum Bakeout Temperature
150°C
Typical Life
1,000,000 cycles
