GENTEC U21 series single-stage regulators are hand adjustable, pressure reducing regulators for applications ranging from non-corrosive, corrosive, and toxic gases. Our metal-to-metal diaphragm to body seal is designed to minimize leakage and to provide excellent accuracy and longevity.
FEATURES
- 316L stainless steel body
- Metal to metal diaphragm to body seal
- Easy front panel and rear bracket mounting
- Gauge ports are standard with 1/4” face seal male. Internal 1/4” face seal female is also available
- Fully internal electropolished
- Cleaned, assembled and packaged for high purity semiconductor applications
- High-cycle life
- 100% Helium-leak tested
Materials of Construction
- Wetted
- Body： 316L stainless steel
- Seat： PCTFE*, Vespel®
- Diaphragm： 316L stainless steel
- Poppet： 316 stainless steel
- Remaining Part： 316 stainless steel
Non-wetted
- Nut： 316 stainless steel
- Cap： nickel plated brass
- Knob： ABS Plastic
Operating Conditions
- Maximum Inlet Pressure： 500 psig (35 barg), 3000 psig (206 barg)
- Outlet Pressure： 0-25 psig (1.7 barg), 0-50 psig (3 barg), 0-100 psig (7 barg),0-250 psig (17 barg), 0-500 psig (35 barg)
- Temperature： -40°F to 165°F (-40°C to 74°C)
Functional Performance
- Flow Capacity： Cv=0.14
- Maximum Leak Rate:
Inboard Leakage： 2 x 10-8 atm cc/sec He
Outboard Leakage： 2 x 10-9 atm cc/sec He
Across Seat Leakage： 4 x 10-8 atm cc/sec He
- Proof Pressure： 150% of maximum rated pressure
- Burst Pressure： 400% of maximum rated pressure
Surface Finish
- Standard Ra： 20 μin
- Optional Ra (EP): 10 μin
Internal Volume
4.6 cc
