| SR. NO. | NOMENCLATURE | MATERIAL |
| 1. | Body | S.S. 304 (CF8) (I.C.) |
| S.S. 316 (CF8M) (I.C.) | ||
| 2. | Disc | S.S. 304 (CF8) (I.C.) |
| S.S. 316 (CF8M) (I.C.) | ||
| 3. | Retainer | S.S. 304 / S.S. 316. |
| 4. | Seat Ring | PTFE (Teflon) |
| 5. | Shaft | AISI 304 / 316. |
| 6. | Shaft Bearing Bush | AISI 304 / 316. |
| 7. | Gland | AISI 304 / 316. |
| 8. | Gland Packing | PTFE (Teflon). |
| 9. | Flap Stem cover | S.S. 304 / 316. |
| 10. | Allen Bolt | S.S. 304 / 316. |
| 11. | Lever | Mild Steel. |