Kunkle Safety and Relief Valves Models 264, 265, 266, and 267

Non-code liquid relief, ASME Section VIII, air/gas and steam, National Board certified, safety and relief valves

Model 264: Carbon steel housing with 316 stainless steel trim and spring. Pressuretight cap.

Model 265: Same as model 264 except high-temperature alloy spring (temperatures to 750°F).

Model 266: Same as model 264 except all 316 stainless steel materials.

Model 267: Same as model 266 except high-temperature alloy spring (temperatures to 750°F).

Product Features

  • Extra heavy, rugged construction
  • Top guided design offers high capacity with 0.110 in2 [0.710 cm2] orifice area
  • Seats lapped to optical flatness
  • Standard outlet with 1″ Female NPT
  • Ball pivot between disc and spring corrects misalignment and compensates for spring side thrust

Specifications

  • Sizes 0.25″, 0.5″, and 1″
  • Model 264: Pressures from 4 to 3300 psig; Temperature from -20° to 550°F
  • Model 265: Pressures from 4 to 3300 psig; Temperature from -320° to 750°F
  • Model 266: Pressures from 4 to 3300 psig; Temperature from -20° to 550°F
  • Model 267: Pressures from 4 to 3300 psig; Temperature from -320° to 750°F
  • Steam Service (all Models): 2000 psig; Maximum back pressure 400 psig
  • UV Stamp

Service

  • Steam

Applications

  • Protection of pumps, compressors, pressure vessels or systems handling corrosive fluids or vapors at high pressure and/or temperature
  • Sentinel (warning) on steam equipment
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