AVK METAL SEATED MULTI-DOOR RECOIL CHECK VALVE

SS hinge pin, gunmetal seat, without bypass, DN 600-1600, PN 16

Contact

AVK Saudi Valves

Jeddah Industrial City, Phase 4, Street no 45 P.O. Box 10830, 21443 Jeddah 24/7 Leakage Repair Service +966 50 595 5166

Multi-door recoil check valve without bypass for drinking water, waste 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 641/21-002
Connection: Flanged
Material: Ductile iron
PN: PN 16

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
  • Body, stopper, cover and door of ductile iron with two pack epoxy dark blue externally and light blue internally according to WRAS

Downloads

Datasheet
Tender Text
Installation, Operation & Maintenance
Outline drawings DWG
Outline drawings DXF
Outline drawings IGS
Outline drawings STEP

Components

1. Eye bolt Stainless steel
2. Inlet body Ductile iron GJS-500-7 (GGG-50)
3. Stud bolt Steel, hot dip galvanized
4. Nut Steel, hot dip galvanized
5. O-ring EPDM rubber
6. Outlet body Ductile iron GJS-500-7 (GGG-50)
7. Washer Steel, hot dip galvanized
8. Washer Steel, hot dip galvanized
9. Blind plate for proxy switch Stainless steel
10. O-ring EPDM rubber
11. Rivet pin Bronze PB102
12. Stud bolt Steel, hot dip galvanized
13. Seat ring Bronze CC491K
14. Top door Ductile iron GJS-500-7 (GGG-50)
15. Top stopper Ductile iron GJS-500-7 (GGG-50)
16. O-ring EPDM rubber
17. Face ring Bronze CC491K
18. Bottom door Ductile iron GJS-500-7 (GGG-50)
19. Bottom stopper Ductile iron GJS-500-7 (GGG-50)
20. Washer Steel, hot dip galvanized
21. Stud bolt Steel, hot dip galvanized
22. Nut Steel, hot dip galvanized
23. Blind plate for proxy switch Ductile iron GJS-500-7 (GGG-50)
24. Bolt Steel, hot dip galvanized
25. O-ring EPDM rubber
26. Hinge pin Stainless steel 1.4401
27. Bush Composite
28. Split pin Stainless steel 1.4401
29. 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
  • Flange drilling to EN1092-2 (ISO 7005-2), PN10/16
0 Files In the package