AVK SWING CHECK VALVE, METAL SEATED
Right side free shaft, DN50-300, PN10/16
Anthony Whittam
Network Water Specialist
Metal seated swing check valve with free shaft for drinking water and neutral liquids to max. 70° C
AVK swing check valves provide easy access to maintenance simply by unscrewing a few bolts and lifting the bonnet assembly including shaft and disc out of the body. The disc is fully vulcanized with EPDM rubber and is mounted in a nylon bushing allowing it to move slightly horizontally and vertically to achieve compete tightness. AVK swing check valves are available with closed bushings and with free shaft for mounting of lever and weight/spring.
| Variant 41/39-001 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN50 - DN300 |
| PN: | PN 16 |
Features
- Clear way and full bore for low head loss and easy pig-cleaning
- Metal seat in gunmetal bronze for high durability
- Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
- Shaft, bolts and washers in 1.4021 (AISI 420) stainless steel
- Free protruding shaft end for mounting of lever and weight or spring to assist valve closing and avoid water hammer
- Hinge of stainless steel for sizes ≤ DN 200; ductile iron coated with drinking water approved epoxy for larger
- Ductile iron disc covered with drinking water approved EPDM
- Bonnet gasket lying in a groove between bonnet and body prevents blow-out
- All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 250µm fusion bonded epoxy
- Disc mounted in a flexible rubber bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
- Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
- WRAS approved materials
Downloads
Installation, Operation & Maintenance
Price list
Related Datasheets
Certificate(s)
Guidelines
Datasheet
Reference nos. and dimensions:
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| Ref. no. | DN mm |
Flange drillling |
L mm |
H mm |
H3 mm |
W mm |
W1 mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|
| 41-050-39-01800 | 50 | PN10/16 | 203 | 125 | 210 | 243 | 148 | 15 |
| 41-080-39-01800 | 80 | PN10/16 | 241 | 140 | 240 | 238 | 138 | 16 |
| 41-100-39-01800 | 100 | PN10/16 | 292 | 155 | 265 | 265 | 165 | 21 |
| 41-150-39-01800 | 150 | PN10/16 | 356 | 220 | 360 | 333 | 198 | 37 |
| 41-200-39-01800 | 200 | PN16 | 495 | 250 | 420 | 388 | 223 | 60 |
| 41-250-39-01800 | 250 | PN16 | 622 | 347 | 560 | 692 | 389 | 132 |
| 41-300-39-01800 | 300 | PN16 | 699 | 395 | 650 | 695 | 385 | 210 |
3D drawings
Enquiry
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Components
| 1. | Bolt and nut | Stainless steel A2 |
| 2. | Body | Ductile Iron GJS-500-7 |
| 3. | Washer | Stainless steel A2 |
| 4. | Disc | EPDM encaps. duct. iron |
| 5. | Hinge | DN≤200 SS, DN≥250 DI |
| 6. | Gasket | EPDM |
| 7. | Face ring | Bronze CC491K |
| 8. | O-ring | NBR rubber |
| 9. | Seat ring | Bronze CC491K |
| 10. | Washer | Copper |
| 11. | Air plug | Stainless Steel 1.4401 (316) |
| 12. | Bonnet | Ductile Iron GJS-500-7 |
| 13. | Connector | Stainless Steel 1.4408 (316) |
| 14. | Bushing, closed | Brass CW614N |
| 15. | Shaft | Stainless steel 1.4021 (420) |
| 16. | O-ring | NBR rubber |
| 17. | O-ring | NBR rubber |
| 18. | Spacer | Stainless Steel 1.4401 (316) |
| 19. | Key | Stainless Steel 1.4401 (316) |
| 20. | O-ring | NBR rubber |
| 21. | Bushing, open | Brass CW614N |
Test/Approvals
-
Hydraulic test according to EN 1074-1 / EN 12266
| - Seat: 1.1 x PN. Body: 1.5 x PN.
Standards
- Designed according to EN 1074 - 3
- Standard flange drilling to EN1092 (ISO 7005-2), PN 16
- WIMES 8.09 Compliant
- Drinking Water Inspectorate Regulation 31 compliant