General Design Features

Design Features


  • Fully welded body
  • Spring energized seats
  • Metal or soft seated
  • Double Block and Bleed
  • Full or reduced bore
  • Flanged or welded ends
  • Anti blow out trunnion stem design
  • Corrosion resistant low friction bearing
  • Sealant injection fittings for emergency stem or seal sealing
  • ISO5211 Mounting pad for actuator or gear operator
  • Removable stem seals under full line pressure fully o in pened or closed position
  • Anti static device for grounding of the ball, stem and body
  • Self lubricated bearings
  • In accordance with API 6D, API 6FA, BS 6755 and NACE 01-75 (latest edition)
  • Trunnion supported design reduces operating torque
  • 8″ & larger valves are equipped with lifting lugs
  • Two sets of O-rings plus firesafe stem packing prevents leakage

Functions & Features

1.Double block & bleed
7.Special seat
13.Diversity of body materials
2.Safe release
8.Bonnet combined seal
14.Diversity of seat materials
3.Reliable seal
15.Various kinds of control systems
4.Fire safe
10.Extended stem
16.Reliable operation
5.Cleaning pipe
11.Various operationsl
17.Bearing pipe stress safety
6.Emergency seal
12.Various end connections


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