Features
- Suitable for high purity applications
- NPT connections
- Internal springless
- Design for very low particle generation
- Metal-to-metal diaphragm seals
- High cycle life
- 100% Helium leak tested
MATERIALS OF CONSTRUCTION
- Wetted
- Body: 316L stainless steel
- Seat: PCTFE
- Diaphragm: Elgiloy®
Non-wetted
- Nut: 303 stainless steel
- Knob: ABS
Operating Conditions
- Maximum Operating Pressure: 3500 psig (240 barg)
- Minimum Operating Pressure: vacuum
- Temperature: -40°F to 150°F (-40°C to 65°C)
Functional Performance
- Flow Capacity: Cv=0.17
- Maximum Leak Rate:
Inboard Leakage: 1 x 10-9 atm cc/sec He
Outboard Leakage: 1 x 10-9 atm cc/sec He
Across Seat Leakage: 4 x 10-9 atm cc/sec He
- Proof Pressure: 150% of maximum rated pressure
- Burst Pressure: 400% of maximum rated pressure
Surface Finish
20 μin