Part materials
Major part materials
| No. | Part | Material |
|---|---|---|
| 1 | Body | ASTM A216 Gr.WCB |
| 2 | Ball | 304 S.S. |
| 3 | Spring | 304 S.S. |
| 4 | Nut | ASTM A194 Gr.2H |
| 5 | Stud | ASTM A193 Gr.B7 |
| 6 | Nut | ASTM A193 Gr.B7 |
| 7 | Gauge block | AISI 1010 Zinc-coated |
| 8 | Handle | ASTM A216 Gr.WCB |
| 9 | Gland | 304 S.S. |
| 10 | Packing gland | ASTM A216 Gr.WCB |
| 11 | Packing bushing | ASTM A276 410 |
| 12 | Packing | PTFE |
| 13 | Stem | ASTM A182 F6a |
| 14 | Bonnet | ASTM A216 Gr.WCB |
| 15 | Gasket | PTFE |
| 16 | Seat seal | PTFE |
| 17 | Inner fire-safe metal | ASTM A276 410 |
| 18 | Outer fire-safe metal | ASTM A276 410 |
