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Safety Relief Valves

Product Number
140-0125 | 140-0150 | 140-0200

C-Aire’s Safety Relief Valves feature ASTM B16 brass with nickel plating and a silicone seal.

  • Set Pressure Range: 25-250 psig
  • Set Pressure Tolerance: +2 psig up to and including 70 psig, +3% of set pressure greater than 70 psig. As required in paragraph UG-134(d)(1) of the ASME Boiler & Pressure Vessel Code Sec. VIII Div. 1.
  • Seat Leakage: Bubble Tight within 5 psig for set pressure 50 psig or less. Bubble Tight within 10% for set pressure greater than 50 psig. As required in paragraph 2.2.3 of API 527.
  • Flow Factor (Slope Method): 0.41
  • Operating Temperature Range: -65°F to 400°F
  • Materials of Construction: Seat, Cap, Piston: ASTM B16 Brass. Spring: 17-7 stainless steel. Seal: silicone
  • Certifications: ASME Boiler & Pressure Vessel Code Section VIII Division 1 | CSA B51 Boiler, Pressure, Vessel, and Pressure Piping Code

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