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AVK SWING CHECK VALVE, METAL SEATED, PN10/16

Right hand side free shaft end, DN350-600

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Metal 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.

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Variant 41/39-004
Connection: Flanged
Material: Ductile Iron
DN: DN350 - DN600
PN: PN16

Features

  • Metal seat in high strength alu-bronze
  • Shaft fitted in the bonnet allows for easy maintenance without removing valve from pipeline
  • Shaft material 1.4021 (AISI 420) stainless steel
  • Free protruding shaft end for mounting of lever and weight or spring to assist valve closing and avoid water hammer
  • Hinge of ductile iron coated with drinking water approved epoxy, firmly tightened around the shaft to eliminate play
  • 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, 250µm fusion bonded epoxy
  • Disc mounted in a flexible rubber bushing which allows it to tilt slightly in all directions and adjust exactly to the valve seat
  • Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.

Downloads

Datasheet
Tender Text
Installation, Operation & Maintenance
Animation
AVK_swing_check_valve_animation.mp4
Appendix
Certificate(s)

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 L
mm		 H
mm		 H3
mm		 W
mm		 W1
mm		 Theoretical
weight/kg
41-350-39-00800 350 PN10 800 419 689 705 415 285
41-350-39-01800 350 PN16 800 419 689 705 415 285
41-400-39-00800 400 PN10 900 470 765 775 450 374
41-400-39-01800 400 PN16 900 470 765 775 450 374
41-450-39-00800 450 PN10 1000 518 843 845 485 515
41-450-39-01800 450 PN16 1000 518 843 845 485 515
41-500-39-00800 500 PN10 1100 570 935 905 515 690
41-500-39-01800 500 PN16 1100 570 935 905 515 690
41-600-39-00800 600 PN10 1300 630 1060 1019 572 949
41-600-39-01800 600 PN16 1300 630 1060 1019 572 949
2D/3D drawings
Enquiry
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Components

1. Body Ductile iron GJS-500-7
2. Washer Stainless steel A2
3. Nut Stainless steel A2
4. Stud bolt Stainless steel A2
5. Face ring Alu-bronze CC331G (AB1)
6. Seat ring Alu-bronze CC331G (AB1)
7. Bonnet Ductile iron GJS-500-7
8. Bolt Stainless steel A2
9. O-cord EPDM rubber
10. Guide bush EPDM rubber
11. Washer Stainless steel A2
12. Split pin Stainless steel A2
13. Castle nut Stainless steel A2
14. Stud bolt Stainless steel A2
15. Hinge arm Ductile iron GJS-500-7
16. Disc Ductile iron GJS-500-7
17. Protective bush EPDM rubber
18. Washer Stainless Steel 1.4401 (316)
19. Bolt Stainless steel A2
20. O-ring EPDM rubber
21. Bushing, open Brass, DZR CW602N (CZ132)
22. O-ring EPDM rubber
23. Gasket Polyamide
24. Air plug Stainless steel
25. Shaft Stainless steel 1.4021 (420)
26. Connector Stainless steel 1.4408
27. Spacer Stainless steel 1.4404 (316L)
28. O-ring EPDM rubber
29. Bushing, closed Brass, DZR CW602N (CZ132)

Test/Approvals

  • Hydraulic test according to EN 1074-3/ EN12266 |
  • Seat: 1.1×PN (in bar), Body: 1.5×PN (in bar).
  • Approved according to ACS Certificate 14 ACC NY 197

Standards

  • Designed according to EN 1074 - 3
  • Face-to-face dimension according to EN 558 Table 2 Basic Series 48
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN10/16
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