AVK RESILIENT SEAT SWING CHECK VALVE, AS B5
BS 5153 short, lever/weight RH side SS shaft, brass bushings, EPDM, A2 bolts
Contact
Chan Chee Leong
Senior Manager, Sales and Marketing
Resilient seat swing check valve to EN 1074 standard. 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 41/22-002 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| PN: | PN 10/16 |
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 1.4021 (AISI 420) stainless steel
- Position indicating lever with an adjustable weight that aids the disc in closing quickly to reduce water hammer
- Bonnet gasket in a groove between bonnet and body to prevent blow-out
- All seals in contact with the water in drinking water approved EPDM
- 250µm fusion bonded blue RAL5017 epoxy coating, approved for drinking water
- Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
Downloads
Components
| 1. | Bolt | Stainless steel A4 |
| 2. | Nut | Stainless steel A4 |
| 3. | Washer | Stainless steel A4 |
| 4. | Bushing | Polyamide |
| 5. | Disc | Steel S235JR |
| 6. | Body | Ductile iron GJS-500-7 (GGG-50) |
| 7. | Gasket | EPDM rubber |
| 8. | Bolt | Stainless steel A4 |
| 9. | Pin | Stainless steel A4 |
| 10. | Hinge | Stainless steel AISI 316 |
| 11. | Key | Stainless steel A4 |
| 12. | Bonnet | Ductile iron GJS-500-7 (GGG-50) |
| 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 AISI 316L |
| 19. | O-ring | EPDM rubber |
| 20. | O-ring | EPDM rubber |
| 21. | Bushing, open | Brass DZR |
| 22. | O-ring | EPDM rubber |
| 23. | Lever | Ductile iron GJS-500-7 (GGG-50) |
| 24. | Washer | Stainless steel A4 |
| 25. | Nut | Stainless steel A4 |
| 26. | Weight | Cast iron GJL-250 (GG-25) |
| 27. | Screw | Stainless steel A4 |
Test/Approvals
- Approved according to WRAS Certificate No. 1811031 to max. 50°C
- ISO 45001 certified - SAI Global Certification
- ISO 14001 certified - SAI Global Environment
- ISO 9001 certified - SAI Global Quality
Standards
- EN 1074-3
- Face-to-face dimension according to EN 558, Series 10
- Flange drilling to AS4087 figure B5
