Single orifice air valve
Single small orifice air valve with brass isolation valve, ductile iron body, ABS float/support/cap, EPDM rubber seal, zinc-plated
bolts/nuts, dark blue (RAL5005) epoxy coating。
Description
Features:
- Design according to BS EN 1074-4:2000
- with oblong holes to suit flange DN40/50/60/65, EN1092-2 PN10/16
- Test according to EN 12266-1:2012
- Working pressure: 16kg/cm3
- Shell test pressure: 25kg/cm3
- Seat test pressure: 18kg/cm3
- Media: water, neutral oil
- External and internal coating:100% fusion-bonded epoxy
- SS304, 316 bolts/nuts/washers are available on request
Materials:
| No.. | Part Name | Material | Standards | |
| No. | ||||
| 1 | Body | Ductile Iron | EN1563-GJS-450 | BS2789 |
| 2 | Float | ABS | ||
| 3 | Nut | Carbon Steel | EN ISO4032 | BS3692 |
| 4 | Washer | Carbon Steel | EN ISO7089 | BS4320 |
| 5 | O-ring | EPDM | EN681-1 | BS2494 |
| 6 | Cover | Ductile Iron | EN1563-GJS-450 | BS2789 |
| 7 | Hexagon Bolt | Carbon Steel | EN ISO4017 | BS3692 |
| 8 | Adjusting Screw | Stainless Steel | EN ISO15481 | BS4174 |
| 9 | Gasket | EPDM | EN681-1 | BS2494 |
| 10 | Cap | Nylon/Brass | ||
| 11 | Seat | EPDM | EN681-1 | BS2494 |
| 12 | Bracket | Nylon | ||
| 13 | Hinge Pin | Stainless Steel | EN ISO1234 | BS1574 |
| 14 | Isolation Valve | Brass | EN12164 | BS2874 |
| 15 | Flange | Ductile Iron | EN1563-GJS-450 | BS2789 |
Dimmensions：
| DN | W | H |
| 15 | 132 | 224 |
| 20 | 132 | 224 |
| 25 | 132 | 224 |
| 32 | 132 | 224 |
