CRV Corrosion Resistant Vacuum Isolation Valves
Model: CRV
CRV Corrosion Resistant Vacuum Isolation Valves
Model: CRV
Overview
Overview
The Series CRV Corrosion Resistant Valve is designed for use in harsh vacuum environments. The Corrosion Resistant Valve employs a patented technology that isolates the valve bellows while in the open position. Bellows protection is accomplished with an Aluminum or Stainless Steel shield on the exterior of the formed bellows. In the open position the shield is sealed internally with an O-ring to prevent chemicals from attacking the bellows. An umbrella valve (vent valve) is optional and can be used to exhaust trapped gases in the volume between the shield and the bellows. The Corrosion Resistant Valve is designed to be heated which further reduces particle buildup internal to the valve.
Technical Specs
- TypeCorrosion & Ozone Resistant Valve
- Vacuum RangeAtmosphere to 1.0 x 10-9 Torr
- Body ConfigurationInline
- Port SizeNW50
- Flange SizeNW50
- Flange TypeKF50
- Helium Leak Rate1.0 x 10-9 std cc/sec
- Limit SwitchNo
- SealGumlast
- Control Port Options0.125 in. NPT Port
- Cylinder Volume2.2 - 6.4 in3 (36 - 105 cm3) depending on port size
- Cylinder Air Pressure90 psig ±30 psig
- Limit Switch Rating5 Amps, 250 VAC
- Single Pole, Single Throw5 Amps, 30 VDC
- Blow-By Pressure45 - 50 psia, depending on port size
- Actuation TimeOpening: 0.27 - 0.45 sec, Closing: 0.53 - 1.13 sec (at 100 psi msec) depending on port size
- Temperature ConfigurationInline Body Heater with LTA
- Heater Nominal Set Point170°C (338°F)
- Heater Interior Range135 - 180°C (275 - 356°F)
- Heater MaterialsMolded silicone foam, fiberglass reinforced silicone, Teflon insulated wire
- Heater Exterior Range60 - 70°C (140 - 158°F)
- Heater Foam Thickness0.5 in. (12.7 mm)
- Heater ComplianceCE Mark: 89/336/EEC EMC Directive, 73/23/EEC LV Directive, UL Listed: File E52951 2JR
- Heater ConnectorsMidget Twist-lock, nylon, NEMA ML-1
- Heater Weight Range0.5 - 1.5lb. (0.23 - 0.68kg)
- Shield ConfigurationStainless Steel with Vent
- Power Cord Current12 Amps (maximum)
- LTA Monitor EnclosureBlack plastic
- LTA Power Requirements90 - 130 VAC input, 12 VDC ±3 VDC output
- LTA Power Consumption0.3 Watts
- LTA Relay Contact RatingSPDT, 2 Amps @ 50 VAC resistive, 1 Amps @ 30 VDC
- LTA Input/Output WiringThermal switch line IN, Thermal switch line OUT, Normally Closed, Common, Normally open
- LTA Dimensions2.58 x 4.76 x 1.46 in. (66 x 121 x 37 mm)(width x height x depth)
- LTA Compliance89/336/EEC EMC Directive, 92/59/EEC General Product Safety Directive
- Typical Life1,000,000 cycles
- WeightAngle: 3.0 - 6.4 Pneumatic lb. (1.4 - 2.9 kg) depending on configuration
Technical Specs
- TypeCorrosion & Ozone Resistant Valve
- Vacuum RangeAtmosphere to 1.0 x 10-9 Torr
- Body ConfigurationInline
- Port SizeNW50
- Flange SizeNW50
- Flange TypeKF50
- Helium Leak Rate1.0 x 10-9 std cc/sec
- Limit SwitchNo
- SealGumlast
- Control Port Options0.125 in. NPT Port
- Cylinder Volume2.2 - 6.4 in3 (36 - 105 cm3) depending on port size
- Cylinder Air Pressure90 psig ±30 psig
- Limit Switch Rating5 Amps, 250 VAC
- Single Pole, Single Throw5 Amps, 30 VDC
- Blow-By Pressure45 - 50 psia, depending on port size
- Actuation TimeOpening: 0.27 - 0.45 sec, Closing: 0.53 - 1.13 sec (at 100 psi msec) depending on port size
- Temperature ConfigurationInline Body Heater with LTA
- Heater Nominal Set Point170°C (338°F)
- Heater Interior Range135 - 180°C (275 - 356°F)
- Heater MaterialsMolded silicone foam, fiberglass reinforced silicone, Teflon insulated wire
- Heater Exterior Range60 - 70°C (140 - 158°F)
- Heater Foam Thickness0.5 in. (12.7 mm)
- Heater ComplianceCE Mark: 89/336/EEC EMC Directive, 73/23/EEC LV Directive, UL Listed: File E52951 2JR
- Heater ConnectorsMidget Twist-lock, nylon, NEMA ML-1
- Heater Weight Range0.5 - 1.5lb. (0.23 - 0.68kg)
- Shield ConfigurationStainless Steel with Vent
- Power Cord Current12 Amps (maximum)
- LTA Monitor EnclosureBlack plastic
- LTA Power Requirements90 - 130 VAC input, 12 VDC ±3 VDC output
- LTA Power Consumption0.3 Watts
- LTA Relay Contact RatingSPDT, 2 Amps @ 50 VAC resistive, 1 Amps @ 30 VDC
- LTA Input/Output WiringThermal switch line IN, Thermal switch line OUT, Normally Closed, Common, Normally open
- LTA Dimensions2.58 x 4.76 x 1.46 in. (66 x 121 x 37 mm)(width x height x depth)
- LTA Compliance89/336/EEC EMC Directive, 92/59/EEC General Product Safety Directive
- Typical Life1,000,000 cycles
- WeightAngle: 3.0 - 6.4 Pneumatic lb. (1.4 - 2.9 kg) depending on configuration