| No | Description | Material | Standards |
| 1 | Cover | G.C.I GG 25/D.C.I GGG 50 | ES 1300 / ISO 1083 |
| 2 | Flange | G.C.I GG 25/D.C.I GGG 50 | ES 1300 / ISO 1083 |
| 3 | Gasket | Synthetic Rubber(NBR)(EPDM) | BS 2494 |
| 4 | Orifice | Brass | ASTM B-21 |
| 5 | Balls | EPDM - NBR Rubber - ST. ST. | BS 2494 - ASTM 304 |
| 6 | Body | G.C.I GG 25/D.C.I GGG 50 | ES 1300 / ISO 1083 |
| 7 | Bolt | Galvanized Steel | BS 970 |
| 8 | Nut | Galvanized Steel | BS 970 |
| 9 | Gasket | Synthetic Rubber(EPDM)(NBR) | BS 2494 |
air valve, double orifice
| DN | H | L |
| 60 | 260 | 320 |
| 65 | 260 | 320 |
| 80 | 300 | 400 |
| 100 | 300 | 400 |
| 150 | 350 | 500 |
| 200 | 380 | 560 |