AVK SWING CHECK VALVE, RESILIENT SEATED, PN 16
Right side free shaft end, stainless steel 316L shaft, A4 bolts, DN50-300
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
Resilient seated swing check valve with free shaft end. For drinking water and neutral liquids to max. 70°C
AVK series 41 swing check valves come with both metal and resilient seats. Installed in pumping applications to prevent back flow they can be used for drinking water as well as waste water. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly. All interior parts are stainless steel or coated with drinking water approved epoxy or EPDM. The series 41 valves are available with either closed bushings or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.
| Variant 41/20-003 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 - DN300 |
| PN: | PN 16 |
Features
- 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 material 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
- Ductile iron/steel disc core covered with drinking water approved EPDM
- Bonnet gasket in a groove between bonnet and body to prevent blow-out
- All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 300µm fusion bonded epoxy
- Disc design with a ductile iron/steel insert fully vulcanized with EPDM rubber
- Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Flange drilling |
L mm |
H mm |
W mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|
| 41-050-20-0180106 | 50 | PN10/16 | 203 | 110 | 233 | 14 |
| 41-080-20-0180106 | 80 | PN10/16 | 241 | 140 | 233 | 17 |
| 41-100-20-0180106 | 100 | PN10/16 | 292 | 150 | 256 | 22 |
| 41-150-20-0180106 | 150 | PN10/16 | 356 | 195 | 334 | 42 |
| 41-200-20-0180106 | 200 | PN16 | 495 | 230 | 386 | 67 |
| 41-250-20-0180106 | 250 | PN16 | 622 | 270 | 692 | 161 |
| 41-300-20-0180106 | 300 | PN16 | 698 | 300 | 692 | 238 |
Components
| 1. | Bolt | Stainless steel A4 |
| 2. | Nut | Stainless steel A4 |
| 3. | Washer | Stainless steel A4 |
| 4. | Bushing | Polyamide |
| 5. | Disc | Steel |
| 6. | Body | Ductile iron EN GJS-500-7 |
| 7. | Gasket | EPDM rubber |
| 8. | Bolt | Stainless steel A4 |
| 9. | Pin | Stainless steel A4 |
| 10. | Hinge | Stainless steel 316 |
| 11. | Key | Stainless steel A4 |
| 12. | Bonnet | Ductile iron EN GJS-500-7 |
| 13. | Washer | Stainless steel A4 |
| 14. | Thrust plate | Stainless steel |
| 15. | Bushing, closed | Brass, DZR |
| 16. | Tab washer | Stainless steel A4 |
| 17. | Bolt | Stainless steel A4 |
| 18. | Shaft | Stainless steel 316L |
| 19. | O-ring | EPDM rubber |
| 20. | O-ring | EPDM rubber |
| 21. | Bushing, open | Brass, DZR |
| 22. | O-ring | EPDM rubber |
Test/Approvals
- Hydraulic test according to EN 1074-3/ EN12266 |
- Seat: 1.1 x PN. Body: 1.5 x PN.
- Approved by SASO
- Approved according to WRAS Certificate No. 1811031 Ser. 41
Standards
- Designed according to EN 1074 - 3
- Face to face according to EN 558 Table 2 Basic Series 10
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN 16
