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AVK SWING CHECK VALVE, METAL SEATED

Right side free shaft, 1.4404 shaft, DN50-300, PN10/16

Anthony Whittam AVK UK Network Water Specialist

Anthony Whittam

Head of Smart Water and Pressure Management

Metal seated swing check valve with free shaft for drinking water and neutral liquids to max. 70° C

AVK swing check valves provide easy access to maintenance simply by unscrewing a few bolts and lifting the bonnet assembly including shaft and disc out of the body. The disc is fully vulcanized with EPDM rubber and is mounted in a nylon bushing allowing it to move slightly horizontally and vertically to achieve compete tightness. AVK swing check valves are available with closed bushings and with free shaft for mounting of lever and weight/spring.

Variant 41/39-002
Connection: Flanged
Material: Ductile Iron
DN: DN300

Features

  • Clear way and full bore for low head loss and easy pig-cleaning
  • Metal seat in gunmetal bronze for high durability
  • Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
  • Shaft, bolts and washers in 1.4404 (AISI 316L) acid resistant 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
  • Ductile iron disc covered with drinking water approved EPDM
  • 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, 300µm fusion bonded epoxy
  • Disc mounted in a flexible rubber bushing allowing 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.
  • WRAS approved materials

Downloads

Datasheet
Related Datasheets
Certificate(s)
Guidelines
Outline drawings DWG
Outline drawings DXF
Outline drawings IGS
Price list

Reference nos. and dimensions:

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Ref. no. DN
mm		 Flange
drillling		 L
mm		 H
mm		 H3
mm		 W
mm		 W1
mm		 Theoretical
weight/kg
41-300-39-0180106 300 PN16 699 395 650 695 385 210
Enquiry
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Components

1. Bolt and nut Stainless steel A4
2. Body Ductile Iron GJS-500-7
3. Washer Stainless steel A4
4. Disc EPDM encaps. duct. iron
5. Hinge DN≤200 SS, DN≥250 DI
6. Gasket EPDM
7. Face ring Bronze CC491K
8. O-ring NBR rubber
9. Seat ring Bronze CC491K
10. Washer Copper
11. Air plug Stainless Steel 1.4401 (316)
12. Bonnet Ductile Iron GJS-500-7
13. Connector Stainless Steel 1.4408 (316)
14. Bushing, closed Brass CW614N
15. Shaft Stainless Steel 1.4401 (316)
16. O-ring NBR rubber
17. O-ring NBR rubber
18. Spacer Stainless Steel 1.4401 (316)
19. Key Stainless Steel 1.4401 (316)
20. O-ring NBR rubber
21. Bushing, open Brass CW614N

Test/Approvals

  • Hydraulic test according to EN 1074-1 / EN 12266

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  • Seat: 1.1 x PN. Body: 1.5 x PN. 

Standards

  • Designed according to EN 1074 - 3
  • Face to face according to EN 558 Table 2 Basic Series 10
  • Standard flange drilling to EN1092, PN 10/16
  • WIMES 8.09 Compliant
  • Drinking Water Inspectorate Regulation 31 compliant
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