Section I

Flanged Safety Relief Valves

  • Manufactured in accordance with ASME Code Section VIII
  • NBBI capacity certified for air/gas
  • NACE and severe service options
  • Soft Seat option
Section I

 
INLET OUTLET SIZES
1" X 1" to 3" X 4"
ANSI FLANGE SIZES:
150# to 1500#
ORIFICE SIZES:
1/2", 9/16", 3/4", 1"
SOFT SEAT OPTIONS
Viton (R), Neoprene, EPDM, Nitrile
Viton (R) is a registered trademark of DuPont Dow Elastomers
MAXIMUM SET PRESSURE
2,500 PSI
SERVICE APPLICATION:
ASME VIII (UV) AIR & GAS
All models
NBBI CAPACITY CERTIFICATION
Air & Gas
NON-CODE AIR, GAS & LIQUID
All Models
MATERIALS OF CONSTRUCTION
BODY:
WCB & CF8M
INTERNALS
302SS, 316SS
SPRING
302SS, 316SS, Inconel
TYPICAL APPLICATIONS:
Overpressure protection for pumps
and compressors, thermal relief,
NACE service, fuel systems, etc.
CANADIAN REGISTRATION NUMBER
0G0736.2C


RELIEVING CAPACITIES AT SELECTED PRESSURES

(at 10% over pressure)

 SET PRESSURE (psi)

   1/2" ORIFICE (scfm)

   1/2" ORIFICE (gpm)

   9/16" ORIFICE (scfm)

  9/16" ORIFICE (gpm)

  3/4" ORIFICE (scfm)

  3/4" ORIFICE (gpm)

  1" ORIFICE (scfm)

  1" ORIFICE (gpm)

 125

 169

12 

 175

 17

 490

 27

 470

 55

  750

 932

 29

 946

 42

 2704

 67

 2595

 134

 1500

 1848

 41

 1914

 60

 5360

 95

 5144

 190

 2000

 2458

 47

 2547

 70

 7131

 110

 6843

 220

 2500

 

 

 3179

 78

 8902

 123

 

 

  For detailed product specifications, request product specifications sheet I

 

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