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Salient Features
*Screwed Female Ends to IS 554 / BS 21 / ISO 7.
*Screwed on Bonnet.
*Permits flow in one direction and closes automatically if the flow reverses.
*Renewable 13% Cr. Stainless Steel (S.S 410) working parts.
*Metal Disc is mushroom shaped with spherical seating surface.
*Meant for Horizontal Lines Only.
*Disc is guided in Bonnet.
Test Pressure (Hydrostatic) :
Shell : 35 kg/cm²g (500 psig)
Working Pressure (Steam) : 10.55 kg/cm²g (150 psig)
Maximum Working Temperature : 225°C
Suitable For
Steam, Water, Oil, Air*, Gases*
*Also available with PTFE Seating for Air and Gas applications, at a nominal extra price.
Materials
| P.No. | Name of Part | Material of Construction | Specification | Quantity |
| 1 | Body | Bronze | IS 318 Gr. LTB 2 | 1 |
| 2 | Body Seat Ring | Stainless Steel | ASTM A276 Type 410 | 1 |
| 3 | Disc | Stainless Steel | ASTM A276 Type 410 | 1 |
| 4 | Bonnet | Bronze | IS 318 Gr. LTB 2 | 1 |
Sizes / Dimensions
| Size (Inches) | Size (mm) | A ±1.5 | B ~ | C |
| 1/4 | 8 | 60 | 40 | 1/4" |
| 3/8 | 10 | 60 | 43 | 3/8" |
| 1/2 | 15 | 68 | 48 | 1/2" |
| 3/4 | 20 | 84 | 50 | 3/4" |
| 1 | 25 | 95 | 61 | 1" |
| 1 1/4 | 32 | 106 | 72 | 1 1/4" |
| 1 1/2 | 40 | 120 | 84 | 1 1/2" |
| 2 | 50 | 146 | 93 | 2" |
| 2 1/2 | 65 | 180 | 109 | 2 1/2" |
| 3 | 80 | 200 | 121 | 3" |
| 4 | 100 | 248 | 146 | 4" |
