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. Pressure tight 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
