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AVK METAL SEAT SWING CHECK VALVE, EN 1074 STD., PN10/16

EN 558/48, alu-bronze seat, free RH side, SS shaft, EPDM, A2 bolts, 250µm blue EP coating

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AVK Singapore Pte. Limited, 40 Gambas Crescent Nordcom 2 757018 Singapore Singapore

Metal seat swing check valve, EN 1074 standard. For drinking water and neutral liquids incl. treated waste water free of solids and fibrous impurities 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 enclosed shaft end or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.
Variant 41/39-004
Connection: Flanged
Material: Ductile iron
DN: DN350 - DN600
PN: PN 16

Features

  • Metal seat in high strength alu-bronze for high durability. The light weight of the disc requires a minimum of force to open
  • Shaft fitted in the bonnet allowing for easy maintenance without removing the valve from the pipeline
  • Shaft material 1.4021 (AISI 420) stainless steel
  • Free protruding shaft end for mounting of a position indicating lever and weight or spring to assist valve closing and avoid water hammer
  • Stainless steel grade A2 bolts
  • Disc mounted in a flexible rubber bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
  • All seals in contact with the water in drinking water approved EPDM
  • Bonnet gasket fixed in a groove between bonnet and body to prevent blow-out
  • 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

Datasheet
Appendix
Tender Text
Certificate(s)
Installation
Animation
AVK_swing_check_valve_animation.mp4

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
41-350-39-01800 350 PN16 800 419 689 705 415 233
41-400-39-01800 400 PN16 900 470 765 775 450 305
41-450-39-01800 450 PN16 1000 518 843 845 485 436
41-500-39-01800 500 PN16 1100 570 935 905 515 577
41-600-39-01800 600 PN16 1300 630 1060 1019 572 791
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 (AISI 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 (AISI 420)
26. Connector Stainless steel 1.4408, cast
27. Spacer Stainless steel 1.4404 (AISI 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-France

Standards

  • EN 1074-3
  • Face-to-face dimension according to EN 558, Series 48
  • Flange drilling to EN1092, PN10/16
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