AVK COMBINATION AIR VALVE, PN16
For water, ductile iron/reinforced polyamide
Contact
AVK Industrial Nederland BV
Schorsweg 1 8171 ME Vaassen Netherlands
Combination air valve for water and neutral liquids to max. 60°C (temporarily up to 90°C)
AVK combination air valves are combined automatic and air vacuum valves. The automatic air release function releases accumulated air from the system while it is under pressure. The air and vacuum function discharges and admits large volumes of air during the filling or draining of pipelines. The valve will open to relieve negative pressures whenever water column separation occurs.
| Variant 701/50-003 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron / fibreglass reinforced polyamide |
| DN: | DN50 - DN80 |
| PN: | PN 16 |
Features
- Orifice sizes:
Air and vacuum DN 50: 794 mm² – automatic 12 mm²
Air and vacuum DN 80: 1809 mm² – automatic 12 mm². - The enlarged orifice is less exposed to obstruction by debris
- The orifice in the automatic valve releases large volumes of air at high flow rates when the line is under pressure
- The automatic valve’s rolling seal mechanism design is less sensitive to different pressures than a direct float seal, thus enabling a one size orifice for a wide pressure range
- Reliable operation reduces water hammer incidents
- Dynamic design allows for high velocity air discharge while preventing premature closure
- Special orifice seat design with a combination of bronze and EPDM rubber ensures long-term maintenance-free operation
- The discharge outlet enables removal of excess fluids
- Air and vacuum air valve with body and cover of ductile cast iron with blue fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901
- Automatic valve of high-strength composite material
- Float of polycarbonate
- With connection flange or BSP thread
- Working pressure range: 0.2 – 16 bar
Downloads
Datasheet
Certificate(s)
Product Brochure
Video
Outline drawings
Reference nos. and dimensions:
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| Reference no. | DN mm |
Connection |
PN Class |
L mm |
H3 mm |
C mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|
| 701-050-50-11003 | 50 | 50 MM | PN16 | 173 | 293 | 1½" BSP | 6.4 |
| 701-051-50-91003 | 50 | 2" BSP | PN16 | 173 | 306 | 1½" BSP | 4.3 |
| 701-080-50-11003 | 80 | 80 MM | PN16 | 211 | 328 | 2" BSP | 13 |
| 701-081-50-91003 | 80 | 3" BSP | PN16 | 205 | 339 | 2" BSP | 10 |
Enquiry
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Components
| 1. | Body | PA, reinforced |
| 2. | Discharge outlet | PP |
| 3. | Rolling seal | EPDM rubber |
| 4. | Clamping key | PA, reinforced |
| 5. | Float | Foamed PP |
| 6. | O-ring | NBR rubber |
| 7. | Base | PA, reinforced |
| 8. | Strainer mesh | Polyamide |
| 9. | Cover | Ductile Iron |
| 10. | Orifice seat | Bronze |
| 11. | Orifice seal | EPDM rubber |
| 12. | O-ring | NBR rubber |
| 13. | Bolt assembly | Steel, zinc plated |
| 14. | Body | Ductile Iron |
| 15. | Float | Polycarbonate |
Test/Approvals
- Hydraulic test according to EN 1074-1 and 4 / EN 12266
- Approved according to DIN-DVGW Certificate NW-6215BS5030
- Belgaqua approved material
Standards
- EN 1074-4
- Flange drilling to EN1092, PN10
