MULTI DOOR RECOIL CHECK VALVE, METAL SEATED, PN16
SS 1.4401 hinge pin, gunmetal seat, A4 fastener, with bypass, DN600-1400
Contact
AVK International A/S
Bizonvej 1, Skovby, 8464 Galten, Denmark
Multi door recoil check valve with bypass for drinking water and neutral liquids to max. 70°C
The recoil check valve is a high performance, fast acting, non-slam check valve used to prevent flow reversal. Mechanical assistance is given by a combination of inertia reduction, concentration of mass and ideal suspension of the moving elements. Hydraulic assistance is given by the novel provision for forward and backward water streams within the body and around the valve door.
| Variant 641/22-002 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN600 - DN1400 |
| PN: | PN16 |
Features
- Fast acting closure response, it incorporates every mechanical and hydraulic assistance to aid quick valve closure
- Low reverse velocity characteristics
- Used on multi-pump systems and also single pump systems with high system deceleration gradients
- Inclined seating angle to reduce disc travel
- Integrally weight loaded door to accelerate movement
- No additional devices required to effect valve closure, it is practically maintenance free
- High reliability, it is designed based on extensive in-house laboratory research and proved by over 50 years of experience around the world
- 2-pack EP, WRAS approved, RAL5017 externally and ribbon blue or cream white internally, 250μm
Downloads
Datasheet
Tender Text
Reference nos. and dimensions:
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| AVK ref. no. | DN mm |
Flange drilling |
A mm |
B mm |
L mm |
L1 mm |
H mm |
H3 mm |
W mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|---|---|
| 641-0600-22-100003 | 600 | PN16 | 250 | 300 | 940 | 345 | 670 | 1270 | 1530 | 1542 |
| 641-0700-22-100003 | 700 | PN16 | 320 | 320 | 1016 | 313 | 780 | 1434 | 1640 | 2010 |
| 641-0800-22-100003 | 800 | PN16 | 320 | 320 | 1040 | 325 | 780 | 1434 | 1640 | 1882 |
| 641-0900-22-100003 | 900 | PN16 | 360 | 360 | 1300 | 470 | 930 | 1791 | 2073 | 3834 |
| 641-1000-22-100003 | 1000 | PN16 | 360 | 360 | 1400 | 520 | 1050 | 1974 | 2198 | 4257 |
| 641-1200-22-100003 | 1200 | PN16 | 500 | 500 | 1500 | 453 | 1160 | 2202 | 2603 | 6166 |
| 641-1400-22-100003 | 1400 | PN16 | 500 | 500 | 1500 | 453 | 1160 | 2202 | 2603 | 6274 |
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Components
| 1. | Body inlet | Ductile iron GJS-500-7 (GGG-50) |
| 2. | Seat ring | Bronze CC491K (RG5) |
| 3. | O-ring | EPDM rubber |
| 4. | Rivet pin | Bronze PB102 |
| 5. | O-ring | EPDM rubber |
| 6. | Blind plate for proxy switch | Stainless steel 1.4401 |
| 7. | Washer | Stainless steel A4 |
| 8. | Hexagon nut | Stainless steel A4 |
| 9. | Stud bolt | Stainless steel A4 |
| 10. | Top stopper cover | Ductile iron GJS-500-7 (GGG-50) |
| 11. | O-ring | EPDM rubber |
| 12. | Eye bolt | Stainless steel |
| 13. | Top door | Ductile iron GJS-500-7 (GGG-50) |
| 14. | Face ring | Bronze CC491K (RG5) |
| 15. | Bottom door | Ductile iron GJS-500-7 (GGG-50) |
| 16. | Body outlet | Ductile iron GJS-500-7 (GGG-50) |
| 17. | Bottom stopper cover | Ductile iron GJS-500-7 (GGG-50) |
| 18. | Stud bolt | Stainless steel A4 |
| 19. | Bolt | Stainless steel A4 |
| 20. | Washer | Stainless steel A4 |
| 21. | Nut | Stainless steel A4 |
| 22. | Bolt | Stainless steel A4 |
| 23. | Bolt | Stainless steel A4 |
| 24. | By-pass bend | Ductile iron GJS-500-7 (GGG-50) |
| 25. | Stud bolt | Stainless steel A4 |
| 26. | By-pass valve | Gate Valve |
| 27. | O-ring | EPDM rubber |
| 28. | Hinge pin | Stainless steel 1.4401 |
| 29. | Bush | Composite |
| 30. | Split pin | Stainless steel 1.4401 |
| 31. | Hinge pin collar | Stainless steel 1.4401 |
Test/Approvals
- Seat: 1.1 x PN. Body: 1.5 x PN.
Standards
- Designed according to manufacturer's standard
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN16