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PRV19434TP400

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The 19430 relief valves are designed for oxygen and other industrial gases and for cryogenic service in the vapor space. Apply on piping systems, liquid cylinders or mini-bulk cryogenic containers where an ASME relief valve is required.

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Inlet Connection (in.) 1/2
Inlet Connection (mm) 12.7
Length (in.) 2.8
Length (mm) 71.1
Maximum Temperature Rating (°C) 74
Maximum Temperature Rating (°F) 165
Minimum Temperature Rating (°C) -196
Minimum Temperature Rating (°F) -320
Nominal Size (in.) 1/2
Orifice Size / Port Diameter (in.) 0.062
Orifice Size / Port Diameter (mm) 40
Outlet Connection (in.) 3/4
Outlet Connection (mm) 19
Pressure Setting (PSIG) 400
Weight (kg) 0.15
Weight Lbs. 0.3306933
ASME Certification? Yes
Connection Type M. NPT x F. NPT
Inlet Connection (DN) 15
Material Details Body: Brass|Spring: Stainless Steel|Seat Retainer: Brass|Pipe-Away Adapter: Brass
Nominal Size (DN) 15
Outlet Connection (DN) 20
pipe_away_option_included Sold Separately (B9412-4)
Pressure Relief Valve Flow Capacity (SCFM Air) 356.0301
Product Type Brass In-line Cryogenic Gas Relief Valves
  • A.S.M.E. rated, National Board Certified
  • Bubble tight at 95% of set pressure
  • Full flow at 110% at set pressure
  • Repeatable performance
  • 100% factory tested
  • Temperatures Range (Teflon Seat) -320° to +165° F (-196ºC to +74ºC) (Flurosilicone Seat) -60° to +165° F (-51ºC to +74ºC)
  • Cleaned and packaged for oxygen service per CGA G-4.1
  • Rated for gas service only
  • Color coded labels clearly identify pressure setting range
  • Tamper resistant
  • In liquid service be sure to use with a candy cane riser (Sold Separately)