| DESCRIPTION OF PARTS | | Sr.No. | Part Name | Material | | 1 | Side Piece | SS 304/316/C.S./C.I. | | 2 | Body | SS 304/316/C.S. | | 3 | Ball | SS 304/316 | | 4 | Ball Sealing Ring | P.T.F.E | | 5 | Body Gasket | P.T.F.E | | 6 | Body Stud & Nut | B7 & H2 | | 7 | Stem | SS 304/316 | | 8 | Stem Ring | P.T.F.E | | 9 | Stem Packing | P.T.F.E | | 10 | Gland Bush | SS 304/316 | | 11 | Gland Nut | C. S. | | 12 | Handel | C. S. | | 13 | Nut | C. S. |
| | TEST PRESSURE | | Hydrostatic Proof Tests are carried out as per | | BS 5146, MSS SP 72 ANSI B 16 34 | | |
| Test Pressures in PSIG | | | HYDROSTATIC | AIR | | CLASS | BODY | SEAT | SEAT | | 150 | 30 Kg/cm2 | 21 Kg/cm2 | 7 Kg/cm2 | | 300 | 77 Kg/cm2 | 55 Kg/cm2 | 7 Kg/cm2 |
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