Application
9400 series relief valves are specifically designed for vapor line safety relief applications and cryogenic liquid containers.
Features
- Cleaned and packaged for oxygen service per CGA G-4.1
- Bubble tight at 95% of set pressure
- Easy to read color coded barg/mpa labels
- Tamper resistant
- Adapters provide standard pipe thread connections for venting gas to the outdoors
- Repeatable performance
- 100% factory tested
- Temperatures Range (Teflon Seat) -320° to +165° F. (-196ºC to +74ºC)
- Temperatures Range (Flurosilicone Seat) -60° to +165° F. (-51ºC to +74ºC)
- Rated for gas service only
Materials - SS Style
- Body Stainless Steel
- Spring Stainless Steel
- Seat Retainer Stainless Steel
- Pipe-Away Adapter Stainless Steel
Materials - PRV and B-Style
- Body Brass
- Spring Stainless Steel
- Seat Retainer Brass
- Pipe-Away Adapter Brass
Flow Performance
- For set pressures 90 - 600 capacity is 0.783 SCFM of air per psi of flow pressure. For set pressures 15 - 89 capacity is 0.750 SCFM of air per psi of flow pressure. Flow pressure per ASME is 10% above set pressure or +3 psig, whichever is greater
- B-9425N flow of 6.7 SCFM Air/psi at 120% of set pressure
- B-9426N flow of 11.0 SCFM Air/psi at 120% of set pressure
Seat Material Option
- F for Fluorosilicone for PRV and SS styles for 15-139 psig
- T for PTFE for PRV and SS styles for 140-600 psig
- N for B-9425 and B-9426, Fluorosilicone seat, all set pressures
Drain Hole Option
Relief valves without pipeaway typically provided with drain holes, leave blank. P - for relief valves without drain hole, for example PRV9432TP350
WARNING: Inspection and maintenance of pressure relief valves is very important. Failure to properly inspect and maintain pressure relief valves could result in personal injuries or property damage. The useful safe service life of a pressure relief valve may be significantly affected by the service environment.
Pipe Away Option
P Pipeaway included and attached, No drain hole in relief valve. For example PRV9432TP350P Leave blank for relief valve without pipe-away attached. For example PRV9432TP350.
9400 Series
Ordering Information
Style | Size | Inlet M.NPT A | Body and Valve material | Pressure Setting Range psig | Height B | Wrenching Hex C | Orifice Size Sq. Inch | Pipe-Away Adapter P/N | Pipe-Away Outlet F.N.P.T. |
---|---|---|---|---|---|---|---|---|---|
PRV | 9432 | ¼” | Brass | 15-600 | 2.6” | ⅞” | .062 | B-9412-2 | ⅜” |
SS | Stainless Steel | SS-9412-4 | ½” | ||||||
PRV | 9433 | ⅜” | Brass | B-9412-2 | ⅜” | ||||
SS | Stainless Steel | SS-9412-4 | ½” | ||||||
PRV | 9434 | ½” | Brass | 2.8” | B-9412-4 | ||||
SS | Stainless Steel | SS-9412-4 | |||||||
B- | 9425 | ¾” | Brass | 20-300 | 3.4” | 1¾” | .44 | B-3131-10 | 1” |
9426 | 1” | 60-300 | 5.3” | 2⅜” | .62 | B-3132-10 | 1¼” |