AVK DOUBLE ORIFICE AIR RELIEF VALVE, PN10/16
ABS float & float guide, A4 bolts, 300 µ coating, DN50-200
Contact
AVK International A/S
Bizonvej 1, Skovby, 8464 Galten, Denmark
Air relief valve for drinking water (not wastewater) and neutral liquids max. 70° C
AVK double orifice, triple acting air valves are designed for automatic rapid pipe filling and pipe draining as well as for automatic discharge of accumulated air during normal working conditions. The unique ‘Aerokinetic’ design, where air rushing out of the system cannot force the float upwards and close it prematurely, makes sure that the valve closes only after all air has left the system and water has entered the chamber. All ductile iron components are coated with GSK approved fusion bonded epoxy to ensure high durability. All other components are made by either a WRAS approved polymer material or stainless steel to minimize corrosion risk. All seals are made of WRAS approved EPDM rubber featuring an excellent compression set and ability to regain its original shape.
| Variant 851/41-005 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN50 - DN200 |
| PN: | PN16 |
Features
- A clever float design prevents air rushing out of the system from prematurely closing the valve
- Large air flow capacity
- All iron parts with contact to the water are coated with drinking water approved, fusion bonded epoxy
- The resilient seals are made of EPDM rubber and the seat is ABS, all drinking water approved
- All other internal parts are highly corrosion resistant AISI 316 stainless steel or ABS
- No moving parts are touching the internal coating
- The complete product is approved for drinking water
Downloads
| AVK air valves for water ENG.mp4 |
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Flange drilling |
A mm |
D mm |
D1 mm |
H3 mm |
W1 mm |
W6 mm |
Theoretical weight / kg |
|---|---|---|---|---|---|---|---|---|---|
| 851-050-41-122000 | 50 | PN10/16 | 165 | 165 | 50 | 277 | 83 | 220 | 16 |
| 851-080-41-122000 | 80 | PN10/16 | 165 | 200 | 80 | 277 | 83 | 220 | 17 |
| 851-100-41-122000 | 100 | PN10/16 | 205 | 220 | 100 | 283 | 103 | 249 | 23 |
| 851-150-41-122000 | 150 | PN10/16 | 255 | 285 | 150 | 345 | 128 | 287 | 36 |
| 851-200-41-022000 | 200 | PN10 | 255 | 340 | 150 | 345 | 128 | 287 | 40 |
| 851-200-41-122000 | 200 | PN16 | 255 | 340 | 150 | 345 | 128 | 287 | 40 |
Components
| 1. | Float guide top | ABS |
| 2. | Large orifice float | ABS |
| 3. | Float guide bottom | ABS |
| 4. | Seal ring | EPDM rubber |
| 5. | Guide ring | ABS |
| 6. | Seat ring | ABS |
| 7. | Bolt | Stainless steel A4 |
| 8. | Bonnet | Ductile iron GJS-500-7 |
| 9. | Washer | Stainless steel A4 |
| 10. | Cowl | Ductile iron GJS-500-7 |
| 11. | Plug | Plastic |
| 12. | Orifice cover | Polyamide |
| 13. | Bonnet | Ductile iron GJS-500-7 |
| 14. | Gasket | EPDM rubber |
| 15. | O-ring | EPDM rubber |
| 16. | Orifice bracket | Polyamide |
| 17. | Grooved pin | Stainless steel A4 |
| 18. | Seal | EPDM rubber |
| 19. | Screw | Stainless steel A4 |
| 20. | Small orifice float | ABS |
| 21. | Body | Ductile iron GJS-500-7 |
| 22. | Bolt | Stainless steel A4 |
| 23. | Nut | Stainless steel, A4 acid resistance, w. delta seal |
| 24. | Washer | Stainless steel A4 |
| 25. | Bolt | Stainless steel A4 |
| 26. | Nut | Stainless steel, A4 acid resistance, w. delta seal |
Test/Approvals
- Hydraulic test according to EN 1074-1 and 2 / EN 12266
- Approved according to WRAS Certificate 1501702
Standards
- Designed according to EN 1074 - 4
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN10/16
