High-Quality Air Vacuum & Release Valve for Water Pipeline Systems

• Customization: Available
• Pressure Range: PN10-16-25-40 Class125-150-250
• Temperature: -10~80C
• Model NO.: AV4F3F/AV3F2F
• Design: EN 1074-4 / AWWA C-512
• Operation: Automatic
• Flange drilling: EN 1092-2 or ANSI
• Coating: Thermoplastic Powder Epoxy
• Testing: EN 12266-1
• Marking: EN 19
• Color: RAL5005/5010/5015/Customized
• Transport Package: Wooden Box
• Specification: DN50-300
• Origin: China
• Production Capacity: 500000pies/Year

Product Description

Combined Air Vacuum & Release Valve
Combined Air Vacuum & Release Valves auto-matically vent trapped air from the pipeline. They also allow large amounts of air to reenter the line in the event of a rapid, large scale fluid discharge. Air Vacuum & Release Valves are essential for pipeline efficiency and water hammer protection.

The best way to protect your piping system from these negative conditions is to utilize ourair valves in the locations most likely to experience air or vacuum build-up: high-points in the pipeline, adjacent to pumps, in long pipe runs and at deep well installations.

Application Range
- Main transmission lines or Pump suction line
- Water treatment and distribution networks
- Irrigation system
- In general this model is used on changes in slope and at the high points of the pipeline.

Other Specification
- Automatic · Full bore desig
- Medium: Water
- Max. pressure 40 bar
- Min. pressure 0.2 bar. Lower on request·
- DN50 - 300 for Ductile Iron
- DN50 - 200 for Stainless Steel (CF8 / CF8M / Duplex

Features
- Single chamber with a golden ratio design to generate fantastic outline
- Full bore and reduced bore body in ductile iron and stainless steel, maximum PN 40 bar rated, provided with internal ribs for accurate guiding of the floats.
- Aerodynamic flow path of air discharge, air release and air entrance
- Tangential drainage to ensure fully drain
- Composed of cylindrical floats achieve miscellaneous functions
- Replacement between three floats and two floats can be easily performed from the top.
- Stainless steel plate under the bottom float to eliminate surged flow impact to the floats in short time.
- Nozzle can be different port size to fit for demands of different valve models
- Flat venting screen in stainless steel as a standard to prevent the entrance of insects, while umbrella venting screen as a premium.






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