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AVK AIR RELIEF VALVE, ANTI-SLAM, EN1092, 16-40 BAR

Lynx 3F-AS, red. bore for clean water, A2 Delta Seal GZ fasteners, 250µm blue RAL5005 EP coating

CHAN

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Chan Chee Leong

Senior Manager, Sales and Marketing

Air relief valve for clean water and neutral liquids to max., 70°C. Used in applications as transmission lines, water distribution networks and for irrigation.

AVK anti water hammer combination air valves ensure the proper operation of the pipeline network allowing the release of air pockets during working conditions, the entrance of large volumes of air during draining operations and pipeline bursts. The air is discarged with controlled speed, to prevent water hammer. The valve is generally used near pumps, where there are changes in slope ascending and at high points where the pipeline is subjected to water hammer.

Variant 861/11-001
Connection: No connection type specified
Material: Ductile iron
DN: DN50 - DN400
PN: PN 40

Features

  • Single chamber body in ductile cast iron, PN40 bar rated.
  • Internal ribs ensure a consistant and accurate guiding of the mobile block.
  • Drainage valve for chamber control and pressurerelief during maintenance.
  • Mobile block made of a cylindrical float and upper disc in solid polyprolylene, joined together by the air release system in AISI 316. The cylindrical floats are solid which prevents deformation and ensure great precision when moving inside the chamber.
  • Nozzle and gasket holder are wear resistant due to the gasket compression control.
  • Easy maintenance without removing the air valve from the pipesystem.
  • The Anti water hammer system consists of a spring and shaft in stainless steel and a disc with adjustable sonic nozzels for control of the air flow. Thereby the system is never in concact with the water.
  • Cover in ductile iron and screen in stainless steel prevents materials and insects entering the valve. Outlet for submerged applications are optional.
  • Working conditions 0,2 - 40 bar differential pressure.

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Datasheet

Reference nos. and dimensions:

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Reference no. Gross Price
MYR		 DN
mm		 Flange
drilling		 PN
Class		 L
mm		 H3
mm		 Theoretical
weight/kg		 Notes
861-0050-11-0111 3,512 50 PN16 PN16 165 236 7.0
861-0050-11-0911 price on request PN10 117 231 5.0 2" BSP thread
861-0080-11-0111 4,285 80 PN16 PN16 210 305 11
861-0100-11-0111 6,093 100 PN16 PN16 235 303 14
861-0150-11-0111 7,927 150 PN16 PN16 305 337 23
861-0200-11-0111 15,186 200 PN16 PN16 375 515 55
861-0250-11-0111 23,977 250 PN16 PN16 450 625 101
861-0300-11-0111 43,210 300 PN16 PN16 485 735 127
861-0350-11-0111 71,510 350 PN16 PN16 580 850 251
861-0400-11-0111 99,483 400 PN16 PN16 660 995 304
Enquiry
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Components

1. Body Ductile iron GJS-450-10
2. Cap Ductile iron GJS-450-10
3. O-ring NBR rubber
4. O-ring NBR rubber
5. Seat Stainless steel AISI 304
6. Nozzle Stainless steel AISI 316
7. Upper part Polypropylene
8. Float Polypropylene
9. Studs Stainless steel A2
10. Nuts Stainless steel A2
11. Washer Stainless steel A2
12. Disc Stainless steel AISI 304
13. Screw Stainless steel A2
14. Drain valve Stainless steel AISI 303
15. Spacer Stainless steel AISI 304
16. Screen Stainless steel AISI 304
17. Nut Stainless steel A2
18. Spring Stainless steel AISI 304
19. Shaft Stainless steel AISI 304
20. Disc Stainless steel AISI 304
21. Nuts Stainless steel A2
22. Label Stainless steel AISI 304

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 4 / EN 12266
  • Approved according to EN 1074-1 and 4

Standards

  • AWWA C512, EN 1074 part 1
  • Flange drilling to EN1092, PN10/16/25/40
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