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AVK DOUBLE ORIFICE AIR RELIEF VALVE, KSD PN10

ABS float, guides and seat, A2 bolts/A4 delta seal GZ nuts

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

AVK series 851 double orifice, triple action air valves are designed to allow air to rapidly either escape or enter the pipe system when filling or draining, as well as for automatic discharge of accumulated air during normal working conditions. The unique ‘Aerokinetic’ design allows air to rush out of the system at great speed without forcing the float upwards and closing it prematurely. This makes sure that the valve closes only after all air has left the system and water has entered the chamber.
All iron components are protected with fusion bonded epoxy coating in a GSK-approved process to ensure high durability. All other components are made of either WRAS approved polymer material or stainless steel to reduce corrosion risk even further. All seals are made of WRAS approved EPDM rubber featuring an excellent compression set and ability to regain its original shape.

변형 851/41-008
연결 Flanged
재료 Ductile iron
DN: DN50 - DN200
PN: PN 16

특징

  • 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

다운로드

Datasheet
Installation, operation and maintenance manuals
Certificate(s)

데이터 테이블

자세한 정보를 보려면 스크롤 하세요
AVK ref. no. Flange
DN mm		 Flange
drilling		 D
mm		 H3
mm		 W
mm		 W1
mm		 W6
mm		 Theoretical
weight/kg
851-050-41-A11000 DN50 KS D 4308 50 277 165 83 220 16
851-080-41-A11000 DN80 KS D 4308 80 277 165 83 220 17
851-100-41-A11000 DN100 KS D 4308 100 283 205 103 249 23
851-150-41-A11000 DN150 KS D 4308 150 345 255 128 287 36
851-200-41-A11000 DN200 KS D 4308 150 345 255 128 286 40
문의
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부품

1. Float guide top ABS plastic
2. Float, large orifice ABS plastic
3. Float guide bottom ABS plastic
4. Seal ring EPDM rubber
5. Guide ring ABS plastic
6. Seat ring ABS plastic
7. Bolt Stainless steel A2
8. Bonnet Ductile iron GJS-500-7 (GGG-50)
9. Washer Stainless steel A2
10. Cowl Ductile iron GJS-500-7 (GGG-50)
11. Plug Plastic
12. Orifice cover Polyamide
13. Bonnet Ductile iron GJS-500-7 (GGG-50)
14. Gasket EPDM rubber
15. O-ring EPDM rubber
16. Orifice bracket Polyamide
17. Split pin Stainless steel A4
18. Seal EPDM rubber
19. Screw Stainless steel A4
20. Float, small orifice ABS plastic
21. Body Ductile iron GJS-500-7 (GGG-50)
22. Bolt Stainless steel A2
23. Washer Stainless steel A2
24. Nut Stainless steel A4, Delta Seal
25. Bolt Stainless steel A2
26. Nut Stainless steel A4, Delta Seal

승인

  • Hydraulic test according to EN 1074-1 / EN 12266
  • Approved according to WRAS Certificate 1911048, ser. 851, max. 50°C

표준

  • EN 1074-4
  • Flange drilling to KS D 4308 PN10
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