SWING CHECK VALVE, RESILIENT SEAT, PN10/16
Free shaft end RH side, brass-bushings, EN 558/48, SS shaft, A2 bolts, EPDM, 250µm blue EP coating
Check valve for drinking water and neutral liquids incl. treated waste water free of solids and fibrous impurities to max. 70°C
AVK series 41 swing check valves come with both metal and resilient seats to be installed in pumping applications to prevent back flow. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly and secure a tight seal. All interior parts are stainless steel or coated with drinking water approved epoxy. Rubber parts are hydrocarbon resistant NBR or drinking water approved EPDM. The series 41 valves are available with either enclosed shaft end or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.
| Variant 41/60-003 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 - DN300 |
| PN: | PN 16 |
Features
- Full bore for low head loss
- Resilient seat provides a drop tight closure and due to the light weight it requires a minimum of force to open/close
- Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
- Shaft in 1.4404 (AISI 316L) 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 sizes
- Bonnet gasket is securely seated in a precision groove between the bonnet and body and encapsulates the bonnet bolts ensuring sealing integrity and blow-out protection
- All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 250µm fusion bonded epoxy
- Disc is designed with a steel insert fully vulcanized with EPDM rubber and a lip seal to ensure tightness
- Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
Downloads
Reference nos. and dimensions:
| Reference no. | DN mm |
Flange drilling |
H mm |
H3 mm |
L mm |
W mm |
D mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|
| 41-050-60-018 | 50 | PN10/16 | 120 | 202 | 200 | 232 | 165 | 12 |
| 41-065-60-018 | 65 | PN10/16 | 136 | 228 | 240 | 232 | 185 | 15 |
| 41-080-60-018 | 80 | PN10/16 | 135 | 235 | 260 | 237 | 200 | 16 |
| 41-100-60-018 | 100 | PN10/16 | 150 | 260 | 300 | 255 | 220 | 21 |
| 41-150-60-018 | 150 | PN10/16 | 212 | 354 | 400 | 332 | 285 | 47 |
| 41-200-60-008 | 200 | PN10 | 247 | 417 | 500 | 392 | 340 | 66 |
| 41-200-60-018 | 200 | PN16 | 247 | 417 | 500 | 392 | 340 | 66 |
| 41-250-60-008 | 250 | PN10 | 347 | 571 | 600 | 689 | 405 | 185 |
| 41-250-60-018 | 250 | PN16 | 347 | 571 | 600 | 689 | 405 | 185 |
| 41-300-60-008 | 300 | PN10 | 391 | 654 | 699 | 689 | 460 | 200 |
| 41-300-60-018 | 300 | PN16 | 391 | 654 | 699 | 689 | 460 | 200 |
Components
| 1. | Nut | Stainless steel A2 |
| 2. | Washer | Stainless steel A2 |
| 3. | Spacer | PA |
| 4. | Disc insert | Steel S275JR |
| 5. | Body | Ductile iron EN-GJS-500-7 |
| 6. | Bonnet gasket | EPDM rubber |
| 7. | Washer | Stainless steel A2 |
| 8. | Bonnet bolt | Stainless steel A2 |
| 9. | Disc rubber | EPDM rubber |
| 10. | Bolt | Stainless steel A2 |
| 11. | Washer | Stainless steel A4 |
| 12. | Hinge | Stainless steel AISI 316 |
| 13. | Bolt | Stainless steel A4 |
| 14. | Shaft | Stainless steel |
| 15. | O-ring | EPDM rubber |
| 16. | Bushing, open | Brass DZR CW602N |
| 17. | O-ring | EPDM rubber |
| 18. | O-ring | EPDM rubber |
| 19. | Bonnet | Ductile iron EN-GJS-500-7 |
| 20. | Key | Stainless steel A4 |
| 21. | Bushing, closed | Brass DZR CW602N |
Test/Approvals
- Hydraulic test according to EN12050-4
- Belgaqua approved material
- Approved according to DE26PWJA, TÜV-Mark
- Approved according to WRAS Certificate No. 2312701 to max. 50°C
- Approved according to ACS-France
Standards
- EN 1074-3
- Face-to-face dimension according to EN 558, basic series 48
- Flange drilling to EN1092, PN10/16
