Section B

Steel & Stainless Steel Safety Relief Valves

  • Manufactured in accordance with ASME Code Section VIII

  • NBBI capacity certified for Air/Gas

  • Dependable "Ball & Seat" design

  • Pressures to 12,500 psi

  • 1/4" to 1" inlet size


Section B

 
INLET OUTLET SIZES
1/4" X 3/4" to 1" X 1" NPT
ORIFICE SIZES (dia):
1/4", 3/8", 9/16", 1/2"
SOFT SEAT OPTIONS
Viton (R), Neoprene, EPDM, Nitrile
Viton (R) is a registered trademark of DuPont Dow Elastomers
MAXIMUM SET PRESSURE
12,500 PSI
SERVICE APPLICATION:
ASME VIII (UV) AIR & GAS
3/8", 1/2" & 9/16 orifices
NBBI CAPACITY CERTIFICATION
3/8", 1/2" & 9/16" orifices (Air & Gas)
NON-CODE AIR, GAS & LIQUID
All Models
MATERIALS OF CONSTRUCTION
BODY: WCB & CF8M
INTERNALS
320SS, 316SS
SPRING
302SS, 316SS, Inconel
TYPICAL APPLICATIONS:
Overpressure protection for pumps
and compressors, thermal relief, fuel systems,
NACE service, etc.
CANADIAN REGISTRATION NUMBER
0G0736.2C
 

RELIEVING CAPACITIES AT SELECTED PRESSURES

(at 10% over pressure)

 SET PRESSURE (PSI)

 1/4" ORIFICE (gpm)

 3/8" ORIFICE (scfm)

3/8" ORIFICE (gpm)

 1/2" ORIFICE (scfm)

1/2" ORIFICE (gpm)

9/16" ORIFICE (scfm)

9/16" ORIFICE (gpm)

125 2 103 3 169 11 175 17
 700 5 533 9 871 28 902 41
 1500 8 1132 13 1848 41 1914 60
 2000 10 1506 15 2458 47 2547 70
 3000 12 2254 19     3812 85

For detailed product specifications, request product sheet B.

Copyright © Circor Energy Products 2007