AVK SWING CHECK VALVE, RESILIENT SEATED PN10/16

With free shaft end, prepared for limit switch, DN80-300

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Swing check valve, resilient seated with free shaft end, prepared for limit switch. 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 41/60-001
Connection: Flanged
Material: Ductile Iron
DN: DN80 - DN300
PN: PN16

Features

  • Clear way and full bore for low head loss and easy pig-cleaning
  • Resilient seat provides a drop tight closure and due to the light weight it requires a minimum of force to open/close
  • Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
  • Shaft in 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 stainless steel for sizes ≤ DN 200; ductile iron coated with drinking water approved epoxy for larger sizes
  • Bonnet gasket lying in a groove between bonnet and body prevents blow-out
  • All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 250µm fusion bonded epoxy
  • Disc is designed with a steel insert fully vulcanized with EPDM rubber
  • Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
  • Prepared for limit switch indicating closed position

Downloads

Datasheet
Appendix
Certificate(s)
Installation, Operation & Maintenance

Reference nos. and dimensions:

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AVK ref. no. DN
mm
Flange
drilling
L
mm
H3
mm
W
mm
Theoretical
weight/kg
41-080-60-0180041 80 PN10/16 260 240 281 16
41-100-60-0180041 100 PN10/16 300 260 343 22
41-125-60-0180041 125 PN10/16 350 322 343 36
41-150-60-0180041 150 PN10/16 400 338 360 41
41-200-60-0080041 200 PN10 500 400 415 63
41-200-60-0180041 200 PN16 500 400 415 63
41-250-60-0080041 250 PN10 600 473 655 185
41-250-60-0180041 250 PN16 600 473 655 185
41-300-A0-0080041 300 PN10 700 541 684 200
41-300-A0-0180041 300 PN16 700 541 684 200
2D/3D drawings
Enquiry
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Components

1. Nut Stainless steel A4
2. Bolt Stainless steel A4
3. Washer Stainless steel A4
4. Spacer Polyamide
5. Disc Steel S235JR /EPDM
6. Washer Stainless steel A2
7. Bolt Stainless steel A2
8. Hinge Stainless steel 316
9. Bonnet gasket EPDM rubber
10. Key Stainless steel A4
11. Washer Stainless steel A4
12. Bolt Stainless steel A4
13. Body Ductile iron GJS-500-7 (GGG-50)
14. O-ring NBR rubber
15. Bushing, open Dezincification resistant brass
16. O-ring NBR rubber
17. Shaft Stainless steel 420
18. Bonnet Ductile iron GJS-500-7 (GGG-50)
19. Bushing, closed Dezincification resistant brass

Test/Approvals

  • Hydraulic test according to EN12050-4
  • Belgaqua approved
  • Approved according to WRAS Certificate No. 1811031 Ser. 41
  • 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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