AVK AIR RELIEF VALVE, RAPID FILL PREVENTION, EN1092, 16-40 BAR
Lynx 3F-RFP, red. bore for clean water, A2 Delta Seal GZ fasteners, 250µm blue RAL5005 EP coating
Contact
AVK Saudi Valves
Jeddah Industrial City, Phase 4, Street no 45 P.O. Box 10830, 21443 Jeddah 24/7 Leakage Repair Service +966 55 909 9395
Air relief valve for clean water and neutral liquids to max., 70°C. Used in applications as transmission lines, water distribution networks and for irrigation.
AVK air releaf valve, rapid fill prevention valve ensure a controled filling operation of the pipeline network by adjusting the air outflow capacity. Futther it has been designed to allow release of air pockets accumulated under working conditions, the entrance of large volumes of air during draining operations and pipeline bursts and the air dicharge with controlled speed, to prevent water hammer. The valve are generally used near pumps, where there are changes in slope ascending and at high points where the pipeline is subjected to water hammer.
| Variant 861/10-001 | |
|---|---|
| Connection: | No connection type specified |
| Material: | Ductile iron |
Features
- The rapid filling preventer automatically adjust the outflow capacity thereby reducing the velocity of the incoming water column and minimizing the risk og wter hammer. Uncontrolled filling operations and transient events will inevitably generate the rapid closure of the air valves installed in the system with consequent damages. This type of valve will minimize the risk of this occurring.
- The spray effect during closing and the risk of drowning are reduced compared to standard combination air valves.
- Single chamber body in ductile cast iron, PN 40 bar rated, is provided with intenal ribs for a consistant and accurate guiding of the mibile block.
- Mobile block composed of a main float and upper disc, joined together by the air release system in AISI 316, and a additional anti surge obturator.
- Nozzle and gasket holder are in AISI 316 and designed with gasket compression.
- Cover in ductile iron and sreen in stainless steel prevents materials and insects entering the valve. Outlet for submerged applications are optional.
- Working pressure: 0,1 - 40 bar
Downloads
Components
| 1. | Screw | Stainless steel 304 |
| 2. | Body | Ductile iron GJS-450-10 |
| 3. | Stainless steel 304 | |
| 4. | Nozzle | Stainless steel 316 |
| 4. | O-ring | NBR rubber |
| 5. | O-ring | NBR rubber |
| 6. | Nuts | Stainless steel 304 |
| 7. | Screen | Stainless steel 304 |
| 8. | Cap | Ductile iron GJS-450-10 |
| 9. | Nuts | Stainless steel 304 |
| 10. | Studs | Stainless steel 304 |
| 11. | Spacer | Stainless steel 304 |
| 12. | Washer | Stainless steel 304 |
| 13. | Seat | Steel / epoxy coat |
| 14. | O-ring | NBR rubber |
| 15. | Screw | Stainless steel A2 |
| 15. | Upper part | Polypropylene |
| 16. | Float | Polypropylene |
| 17. | Stainless steel 304 | |
| 17. | Drain valve | Stainless steel 304 |
| 18. | Stainless steel 304 | |
| 19. | Washer | Stainless steel 304 |
Test/Approvals
- Hydraulic test according to EN 1074-1 and 4 / EN 12266
- Approved according to EN 1074-1 and 4
Standards
- Designed according to AWWA C512, Designed according to EN 1074 - 4
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN 10/16/25/40