Clark Reliance Steel SG855 Valve Set for 1500 PSI @ 600ºF w/ 3/4" NPT Connection design & performance features includes:
- Upper & lower ball checks w/ union
- Forged steel body to ASTM A105 specification
- Type 303 stainless steel stem & one-piece 420F stainless steel replaceable seat
- Grafoil Packing Cartridge is secured by identical two-bolt packing yokes
- Quadruple stem thread allows full open/closed positions with only one-quarter lever turn
- Stem bushing is positioned outside body, away from high temperatures & corrosive fluids
- Lower valves provide 3/8" tap & female socket weld connection for blowdown
Complete valve sets include two 5ft. lengths of lever chain, with handles that indicate open/closed valve positions as required by the ASME Boiler Code