AVK METAL SEATED MULTI-DOOR RECOIL CHECK VALVE, PN25

SS 1.4057 hinge pin, gunmetal seat, galv. 8.8 fastener

Contact

AVK Philippines Inc.

70 West Avenue Brgy. West Triangle 1104 Quezon City, Philippines

Multi-door recoil check valve 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 641/23-003
Connection: Flanged
Material: Ductile iron
DN: DN600 - DN1400
PN: PN 25

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
Installation, operation and maintenance manuals

Reference nos. and dimensions:

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AVK ref. no. DN
mm
A
mm
B
mm
L
mm
L1
mm
H
mm
H3
mm
W
mm
Theoretical
weight/kg
PN16
641-0600-23-700000 600 250 300 990 370 670 1275 1240 1670
641-0700-23-700000 700 245 320 1030 325 680 1360 1400 2255
641-0800-23-700000 800 320 320 1040 325 780 1468 1417 2378
641-1000-23-700000 1000 360 360 1400 520 1050 2002 1975 5200
641-1200-23-700000 1200 500 500 1500 453 1160 2222 2195 7430
641-1400-23-700000 1400 500 500 1500 453 1160 2218 2195 7089
2D/3D drawings
Enquiry
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Components

1. Body inlet Ductile iron GJS-500-7 (GGG-50)
2. Face ring Bronze CC491K (RG5)
3. O-ring EPDM rubber
4. Rivet pin Bronze PB102
5. Blind plate prox. sw. Stainless steel 1.4401
6. O-ring EPDM rubber
7. Bolt Stainless steel A4
8. Bolt Steel, hot dip galvanized
9. Nut Steel, hot dip galvanized
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 stopper cover Ductile iron GJS-500-7 (GGG-50)
16. Bottom door Ductile iron GJS-500-7 (GGG-50)
17. Body outlet Ductile iron GJS-500-7 (GGG-50)
18. Hinge pin collar Stainless steel 1.4401
19. Split pin Stainless steel 1.4401
20. Bush Composite
21. Hinge pin Stainless steel
22. Bolt Steel, hot dip galvanized
23. Washer Stainless steel A4-70
24. Nut Steel, hot dip galvanized
25. Bolt Steel, hot dip galvanized
26. Washer Steel, hot dip galvanized
27. Blind plate Ductile iron GJS-500-7 (GGG-50)

Test/Approvals

  • Seat: 1.1 x PN. Body: 1.5 x PN. 

Standards

  • Manufacturer's standard
  • Flange drilling EN1092, PN25
0 Files In the package