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AVK DOUBLE ORIFICE AIR RELIEF VALVE, PN10/16

ABS float & float guide, A4 bolts, 300 µ coating, DN50-200

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Air relief valve for drinking water (not wastewater) and neutral liquids max. 70° C

AVK double orifice, triple acting air valves are designed for automatic rapid pipe filling and pipe draining as well as for automatic discharge of accumulated air during normal working conditions. The unique ‘Aerokinetic’ design, where air rushing out of the system cannot force the float upwards and close it prematurely, makes sure that the valve closes only after all air has left the system and water has entered the chamber. All ductile iron components are coated with GSK approved fusion bonded epoxy to ensure high durability. All other components are made by either a WRAS approved polymer material or stainless steel to minimize corrosion risk. All seals are made of WRAS approved EPDM rubber featuring an excellent compression set and ability to regain its original shape.

Variant 851/41-005
Connection: Flanged
Material: Ductile Iron
DN: DN50 - DN200
PN: PN16

Features

  • A clever float design prevents air rushing out of the system from prematurely closing the valve
  • Large air flow capacity
  • All iron parts with contact to the water are coated with drinking water approved, fusion bonded epoxy
  • The resilient seals are made of EPDM rubber and the seat is ABS, all drinking water approved
  • All other internal parts are highly corrosion resistant AISI 316 stainless steel or ABS
  • No moving parts are touching the internal coating
  • The complete product is approved for drinking water

Downloads

Datasheet
Installation
Tender Text
Animation
AVK air valves for water ENG.mp4
Certificate(s)

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 A
mm		 D
mm		 D1
mm		 H3
mm		 W1
mm		 W6
mm		 Theoretical
weight / kg
851-050-41-122000 50 PN10/16 165 165 50 277 83 220 16
851-080-41-122000 80 PN10/16 165 200 80 277 83 220 17
851-100-41-122000 100 PN10/16 205 220 100 283 103 249 23
851-150-41-122000 150 PN10/16 255 285 150 345 128 287 36
851-200-41-022000 200 PN10 255 340 150 345 128 287 40
851-200-41-122000 200 PN16 255 340 150 345 128 287 40
2D/3D drawings
Enquiry
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Components

1. Float guide top ABS
2. Large orifice float ABS
3. Float guide bottom ABS
4. Seal ring EPDM rubber
5. Guide ring ABS
6. Seat ring ABS
7. Bolt Stainless steel A4
8. Bonnet Ductile iron GJS-500-7
9. Washer Stainless steel A4
10. Cowl Ductile iron GJS-500-7
11. Plug Plastic
12. Orifice cover Polyamide
13. Bonnet Ductile iron GJS-500-7
14. Gasket EPDM rubber
15. O-ring EPDM rubber
16. Orifice bracket Polyamide
17. Grooved pin Stainless steel A4
18. Seal EPDM rubber
19. Screw Stainless steel A4
20. Small orifice float ABS
21. Body Ductile iron GJS-500-7
22. Bolt Stainless steel A4
23. Nut Stainless steel, A4 acid resistance, w. delta seal
24. Washer Stainless steel A4
25. Bolt Stainless steel A4
26. Nut Stainless steel, A4 acid resistance, w. delta seal

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 2 / EN 12266
  • Approved according to WRAS Certificate 1501702

Standards

  • Designed according to EN 1074 - 4
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN10/16
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