AVK LARGE COMBINATION AIR VALVE, PN 16

For wastewater, steel

Anthony Whittam AVK UK Network Water Specialist

Anthony Whittam

Network Water Specialist

Large combination air valve for wastewater treatment to max. 60°C (temporarily up to 90°C)

AVK combination air valves are designed to combine large volume of air discharge/intake whilst filling/draining a pipeline with automatic discharge of air deliberated from the fluid. They feature an innovative design with a large air gap between liquid and sealing system. A spring between stem and float compensates for slight pressure changes and maintains the air gap ensuring reliable function even when used with aggressive liquids and liquids carrying solid particles.

Variant 701/78-010
Connection: Flanged
Material: Steel
DN: DN80 - DN100
PN: PN 16

Features

Orifice sizes: Automatic 16 mm2, kinetic 5024 mm2.

The large air gap between liquid and sealing system ensures a reliable function even when used with aggressive liquids and liquids carrying solid particles.

The large orifice in the automatic valve releases large volumes of air when the line is under pressure. The spring between the stem and upper float compensates for slight pressure changes.

Unique design of the float assembly prevents contact between the wastewater and the sealing mechanism, prevents clogging by floating solids and ensures drip-tight sealing.

The disc is placed at the top of the valve, keeping the levers and pins away from the corrosive atmosphere in the air valve body.

The stainless steel float system ensures high corrosion resistance.

The conical body with funnel-shaped lower body allows maximum air volume within minimum valve length and prevents accumulation of deposits at the bottom.

The epoxy coated steel body features low weight.

Drainage and flushing is possible through the drain in the valve’s side.

An exhaust tube can be mounted in the threaded opening on the top of the valve.

The outlet enables removal of excessive fluids.

With connection flange.

Working pressure range: 0.2 – 16 bar.

Downloads

Installation, Operation & Maintenance
Price list
Related Datasheets
Guidelines
Datasheet
Outline drawings STEP

Reference nos. and dimensions:

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Ref. no. DN
mm
Flange
drillling
L
mm
H3
mm
Theoretical
weight/kg
701-080-78-11003 80 PN10/16 554 580 25
701-100-78-11003 100 PN10/16 554 580 27
Enquiry
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Components

1. Disc arm assembly Cast stainless steel
2. Cover Ductile iron
3. Orifice seat Stainless steel 316
4. Plug PP
5. Air and vacuum disc PA/SS
6. Washer Stainless steel 304
7. Rivet Stainless steel 304
8. Air release seal EPDM
9. Air release disc Reinforced PA
10. Bolt Stainless steel 304
11. O-ring NBR rubber
12. Air and vacuum seal EPDM
13. Air and vacuum seal lock Reinforced PA
14. Domed nut / washer Stainless steel 304
15. Spray guard PP
16. Stopper PP
17. Spring Stainless steel 316
18. Washer Stainless steel 304
19. Body Steel
20. Float assembly Stainless steel 316
21. Ball valve Stainless Steel 1.4401 (316)
22. Bolt Stainless steel 316
23. Washer Stainless steel 316
24. Bushing POM
25. Bolt/nut/washer Stainless steel 316
26. Domed nut Stainless steel 316

Test/Approvals

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