# PD 72



  • Sap cast steel gate valves have been designed to meet the requirements of API 600 / BS 1414 / API 603 / API 6D /ASME B 16.34
  • Face to Face and End to End dimensions conform to ASME B 16.10 /BS 2080 / DIN
  • End flange dimensions conform to ASME B 16.5 / API 605 / BS 3293 / DIN
  • Butt weld end dimensions conform to ASME B 16.25
  • The stem nut design allows for the removal of the hand-wheel while keeping the Stem and Gate in a fixed position.
  • Anti-frictional Ball bearings are provided in higher sizes and classes.
  • The strength of Stem to Gate connection is stronger than the strength of the Stem at the root of the operating thread
  • Outside screw and yoke construction
  • All the valves provided with back seat arrangement
  • Bi-directional shut-off
  • The gland is of self aligning two piece type Deep stuffing box
  • Body ports are streamlined, permitting unobstructed flow, reduces turbulence, results in lower pressure drop & lower erosion
  • The Seat-rings are cylindrical bottom seated type having ample cross section for strength are provided with welded in and threaded Seat-rings will be supplied on request. In case of SS valves the Seat-rings are integral to Body
  • The Body to Bonnet joint is flat in ASME 150 valves, a male and female joint is used in 300 & 600 and ring joint is used in higher classes
  • Valves meet the requirements of fugitive emission levels Shell category B as per MESC SPE 77/312
  • For low temperature and cryogenic services (cold box and non cold box) extended bonnet as per
  • BS 6364 available
  • Welded bonnet construction
  • Locking arrangement
  • Welded on flanges
  • Bellow Seal for critical service and hazardous area