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Public Announcement

Gate Valves



 Description

  •   Gate Valves – Flanged Ends, Screwed Ends and Socket Weld Ends
  •   Stainless Steel Gate Valves for Process lines and Special purposes
  •   Carbon Steel Gate Valves for Steam / Thermic Fluid and Utility Lines

 Features

  •   Suitable for high temperature service
  •   Low fugitive emission
  •   Spindles of high quality stainless steel, ground and polished for a very smooth finish for extended gland life
  •   Gland packing ranging from Graphite, Braided and Reinforced Graphite with SS wires, PTFE, PTFE Chevron, Braided and Reinforced PTFE with SS wires
  •   Live load on gland packing for extended low fugitive emission service
  •   Optional stelliting of seats and wedge faces for longer life
  •   Solid and flexible wedge design options
  •   Wide range of body-bonnet gasket options like Graphite, Spiral wound SS with Graphite, PTFE and other fillers
  •   Gear, Electric and Pneumatic Cylinder operators can be provided
  • Why fugitive emission is so critical

    In a petroleum plant, 60% of fugitive emission happens from valves. Hence it is critical to reduce the fugitive emission from valves as much as possible



 Tables

    Part
    No
    Description Material
    1 Body Cast Carbon Steel to ASTM A 216 Gr WCB, ASTM A 352 Gr LCB,
    ASTM A 351 CF8,CF8M,CF3,CF3M and other Nickel Alloys
    2 Bonnet
    3 Seat CS with 13% Cr Deposit / SS 304 / SS 316 / SS 316L /
    other Nickel Alloys / Stellite (Optional)
    4 Wedge
    5 Stem SS 410 / 304 / 316 / MONEL / HAC / other Nickel Alloys
    6 Back Seat Integral / Stellite (Optional)
    7 Gland Flanges Same as Body & Bonnet
    8 Gland Packing Graphite, Braided and Reinforced Graphite with SS wires, PTFE,
    PTFE Chevron, Braided and Reinforced Graphite with SS wires
    9 Body-Bonnet Gasket Graphite, Spiral wound SS with Graphite, PTFE and other fillers
    10 Stem Bush EN 1A / Alloy Iron / Al. Bronze
    11 Stem Bush Retainer CS to IS 1570 / SS
    12 Hand Wheel Fabricated MS / Malleable Iron
    13 Fasteners ASTM A193 / ASTM A194 Carbon Steel / Stainless Steel
    14 Hand wheel Nut CS to IS 1570 / Stainless Steel
    Size 50 65 80 100 150 200 250 300 Class
    150
    F/F 178 190 203 229 267 292 330 356
    H 420 440 540 625 765 950 1160 1390
    ØHW 200 200 250 300 350 400 450 500

  •   Gate Valves generally conform to API 600 / BS 1414 / ISO 10434
  •   Hydrostatic and Pneumatic testing as per API 598 / EN 12266-1 / BS 6755-1
  •   Face-to-Face dimensions ASME B16.10 for Flanged Valves