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 Part Material of Construction Specification Qty.
1 Bonnet Cast Steel IBR 73 – 80 Gr 1
2 Rack Bronze IBR 282 (a) (iv) Gr. B 1
3 Studs Alloy Steel ASTM A 193 Gr. B7 As Reqd.
4 Nuts H.T Steel ASTM A 194 Gr. 2H As Reqd.
5 Body Cast Steel IBR 73 – 80 Gr 1
6 Gasket Steam Joining Sheet IS 2712 Gr. W/3 1
7 Body Seat Ring Stainless Steel ASTM A 276 Type 410 1
8 Male Disc Stainless Steel ASTM A 276 Type 410 1
9 Female Disc Stainless Steel ASTM A 276 Type 410 1
10 Spring Stainless Steel IS 4454 Part 4 Gr. 2 1
11 Pinion Stainless Steel ASTM A 276 Type 410 1
12 Nuts H.T Steel ASTM A 194 Gr. 2H As Reqd.
13 Studs Alloy Steel ASTM A 193 Gr. B7 As Reqd.
14 Gland Bronze IBR 282 (a) (iv) Gr. B 1
15 Gland Packing Braided Graphite IS 4687
16 Stuffing Box Bronze IBR 282 (a) (iv) Gr. B 1
17 Gasket Steam Joining Sheet IS 2712 Gr. W/3 1
18 Nuts Alloy Steel ASTM A 193 Gr. B7 As Reqd.
19 Studs H.T Steel ASTM A 194 Gr. 2H As Reqd.

Material Diagram

Sizes / Dimensions

Size (Inches) Size (mm) A ±1.5 B ~
1 25 178 194
1 1/4 32 241 210
1 1/2 40 267 238
2 50 305 261