Keterangan
Tamper Proof Air Release Valves
amper Proof Air Release Valves
Fouress - High Performance Air Release Valve
Highest Air Discharge Rate
100% Tamper Proof
Zero Water Leakage
Unaffected by Strong Air Flow
Maintenance Free
For Detailed Specifications and Dimensions
Download Brochure
Salient Features
Tamper Proof Design - No Water Loss and No Damage to Valve
Double Orifice & Double Float
S. S. 304 Large & Small Float
S. S. 304 Guiding Stem for Large Float gives 100% perfect closing
Aerodynamic Bucket Design for Max. Airflow & Restricts entry of Foreign Material
Integral Vent Welded to inverted Cap made of M. S. restricts Tampering of Air Release Valves Large Orifice
Small Orifice Automatic Valve Vertically assembled, discharges small quantity of dissolved air / air pockets automatically
Small orifice restricts insertion of any external tubing
High Tensile Steel Allen Bolts ensures Tamper Proofness of Air Release Valve
Designed as per AWWA C512-92 Standards.
Tested as per IS 14845-2000
Light and Compact Design
Sluice Valve or Butterfly Valve can be provided for isolation purpose.
Function & Application
Kinetic Type :
Release and admit air at high flow rates from and into the water pipeline while pumping, filling and emptying.
Automatic Type :
Release accumulated air from the water during flow through pipe under pressure avoiding advancement of cavitation and air bubbles caused by changes in flow conditions
Also available with Non Slam Operational feature.
Operation
On Pump Start-up or main valve opening :
Air is released through the kinetic valve
Water enter the valve, the kinetic float rises to seal the orifice
On Pump Shut-off or main valve closure :
The float drops down, as pressure drops in the line
Air is admitted into the line to prevent vacuum
During Normal Operation :
Air bubbles are carried by the flow and accumulate at the top of the valve
The float moves down, detaching the rubber seal from the nozzle and the air is released
Water rises again and the float seals the orifice.
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