1092 Cast Steel Parallel Slide Blow Off Valve (Flanged)

1092 Cast Steel Parallel Slide Blow Off Valve (Flanged)

Salient Features
  • Flanged Ends to BS 10 Table ‘J’.
  • Maintains fluid tightness and is easy in operation because of sliding action of discs.
  • Discs are kept in close contact with body rings by means of a spring when the valve is under pressure.
  • Premium Quality lubricated Gland Packing, Bolted Bonnet.
  • Valve is operated by means of Rack and Pinion arrangement, in such a manner that valve is opened fully with half turn of the box key.
  • Gland forms a locking guard which prevents removal of the key unless the valve is closed.
Test Pressure (Hydrostatic) :
  • Shell : 48 kg/cm²g (700 psig)
  • Seat : 24.50 kg/cm²g (350 psig)
  • Maximum Working Temperature : 425°C

Materials

P.No.Name of PartMaterial of ConstructionSpecificationQty.
1BonnetCast SteelIBR 73 – 80 Gr1
2RackBronzeIBR 282 (a) (iv) Gr. B1
3StudsAlloy SteelASTM A 193 Gr. B7As Reqd.
4NutsH.T SteelASTM A 194 Gr. 2HAs Reqd.
5BodyCast SteelIBR 73 – 80 Gr1
6GasketSteam Joining SheetIS 2712 Gr. W/31
7Body Seat RingStainless SteelASTM A 276 Type 4101
8Male DiscStainless SteelASTM A 276 Type 4101
9Female DiscStainless SteelASTM A 276 Type 4101
10SpringStainless SteelIS 4454 Part 4 Gr. 21
11PinionStainless SteelASTM A 276 Type 4101
12NutsH.T SteelASTM A 194 Gr. 2HAs Reqd.
13StudsAlloy SteelASTM A 193 Gr. B7As Reqd.
14GlandBronzeIBR 282 (a) (iv) Gr. B1
15Gland PackingBraided GraphiteIS 4687
16Stuffing BoxBronzeIBR 282 (a) (iv) Gr. B1
17GasketSteam Joining SheetIS 2712 Gr. W/31
18NutsAlloy SteelASTM A 193 Gr. B7As Reqd.
19StudsH.T SteelASTM A 194 Gr. 2HAs Reqd.

Material Diagram

Sizes / Dimensions

Size (Inches)Size (mm)A ±1.5B ~
125178194
1 1/432241210
1 1/240267238
250305261