1052 Bronze Parallel Slide Blow Off Valve (Flanged)

1052 Bronze Parallel Slide Blow Off Valve (Flanged)

Salient Features
  • Flanged Ends to BS 10 Table ‘H’.
  • Maintains fluid tightness and 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 : 35.15 kg/cm²g (500 psig)
  • Working Pressure (Steam) : 17.58 kg/cm²g (250 psig)
  • Maximum Working Temperature : 225°C

Materials

P.No.Name of PartMaterial of ConstructionSpecificationQuantity
1BonnetBronzeIBR 282 (a) (iv) Gr. B1
2RackBronzeIBR 282 (a) (iv) Gr. B1
3StudsAlloy SteelASTM A193 Gr. B7As Reqd.
4NutsH.T SteelASTM A194 Gr. 2HAs Reqd.
5BodyBronzeIBR 282 (a) (iv) Gr. B1
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 A194 Gr. 2HAs Reqd.
13StudsAlloy SteelASTM A193 Gr. B7As Reqd.
14GlandBronzeIBR 282 (a) (iv) Gr. B1
15Gland PackingGraphited AsbestosIS 4687
16Stuffing BoxBronzeIBR 282 (a) (iv) Gr. B1
17GasketSteam Joining SheetIS 2712 Gr. W/31
18NutsH.T. SteelASTM A194 Gr. 2HAs Reqd.
19StudsAlloy SteelASTM A193 Gr. B7As Reqd.

Material Diagram

Sizes / Dimensions

Size (Inches)Size (mm)A ±1.5B ~
125169138
1 1/432178157
1 1/240190204
250206206