1077 Cast Steel Gate Valve Class-150
Cast Steel Gate Valves

1077 Cast Steel Gate Valve, Class-150 (Flanged)

Cast steel gate valve to BS EN ISO 10434 / API 600. Bolted bonnet, outside screw, yoke type, rising stem. Renewable 13% Cr. Stainless Steel (SS 410) working parts. Flanged ends as per ASME B 16.5 Class-150.

Test Pressure (Hydrostatic)

  • Shell: 31 kg/cm²g (425 psig)
  • Seat: 21 kg/cm²g (313 psig)
  • Seat (Steam): 10.55 kg/cm²g (150 psig)
  • Max Working Temp: 425°C
Suitable For: Steam, Water, Oil
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Salient Features

  • Design Standard BS EN ISO 10434 / API 600
  • Bolted Bonnet, Outside Screw, Yoke Type, Rising Stem
  • Renewable 13% Cr. Stainless Steel (S.S 410) working parts
  • Handwheel Operated
  • Flanged Ends as per ASME B 16.5 Class-150

Materials of Construction (MOC)

P.No.Part NameMaterialSpecificationQty
1BodyCast SteelASTM A 216 Gr. WCB1
2Body Seat RingStainless SteelASTM A 276 Type 410 / ASTM A 182 Gr. F6a2
3WedgeCast SteelASTM A 216 Gr. WCB1
4Wedge Facing RingStainless SteelASTM A 276 Type 410 / ASTM A 182 Gr. F6a2
5StemStainless SteelASTM A 276 Type 410 / ASTM A 182 Gr. F6a1
6StudsAlloy SteelASTM A 193 Gr. B7As Reqd.
7NutsH.T. SteelASTM A 194 Gr. 2HAs Reqd.
8GasketSteam Jointing SheetIS 2712 Gr. W/31
9Back Seat BushAluminium BronzeBS EN 1982 Gr. AB-11
10Gland PackingBraided GraphiteIS 4687
11GlandStainless SteelASTM A 276 Type 4101
12BonnetCarbon SteelASTM A 216 Gr. WCB1
13HandwheelNodular IronASTM A 439 D21
14Yoke SleeveS.G IronIS 1865 Gr. 400/151

Sizes / Dimensions

Size (in)Size (mm)A ±1.5B ~ØC ~
1 1/240165330210
250178340210
2 1/265190395210
380203430225
4100229521255
5125254568255
6150267666356
8200292783400

~ ±10

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