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 Part | Material of Construction | Specification | Quantity |
|---|---|---|---|---|
| 1 | Bonnet | Bronze | IBR 282 (a) (iv) Gr. B | 1 |
| 2 | Rack | Bronze | IBR 282 (a) (iv) Gr. B | 1 |
| 3 | Studs | Alloy Steel | ASTM A193 Gr. B7 | As Reqd. |
| 4 | Nuts | H.T Steel | ASTM A194 Gr. 2H | As Reqd. |
| 5 | Body | Bronze | IBR 282 (a) (iv) Gr. B | 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 A194 Gr. 2H | As Reqd. |
| 13 | Studs | Alloy Steel | ASTM A193 Gr. B7 | As Reqd. |
| 14 | Gland | Bronze | IBR 282 (a) (iv) Gr. B | 1 |
| 15 | Gland Packing | Graphited Asbestos | 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 | H.T. Steel | ASTM A194 Gr. 2H | As Reqd. |
| 19 | Studs | Alloy Steel | ASTM A193 Gr. B7 | As Reqd. |
Sizes / Dimensions
| Size (Inches) | Size (mm) | A ±1.5 | B ~ |
|---|---|---|---|
| 1 | 25 | 169 | 138 |
| 1 1/4 | 32 | 178 | 157 |
| 1 1/2 | 40 | 190 | 204 |
