A.R.I. Air Release & Check Valves for Wastewater BARAK Kinetic & Automatic Air Release Valve The Combined Air Release Valve incorporates a kinetic air release valve and an automatic air release valve in one single body. Operation The kinetic air release valve, with the large orifice, releases air at high flow rates during the filling of the line and admits air into the line at high flow rates during its emptying. The kinetic air release valve will function only as long as the line is not under pressure. It will remain closed as long as water flows within the line, during which the automatic air release valve, with the small orifice, will act to release air from the line under pressure.

Stages of Operation Water is admitted into the line, by either opening a valve or starting a pump. Air is released through the orifice. Water penetrates into the air release valve and lifts the float. A rubber seal connected to the float seals the kinetic air valve, which remains in that position until the pressure in the line is released and atmospheric conditions prevail again. Entrapped air bubbles, carried by the flowing water, rise to the top of the automatic air release valve. The float moves down, opening a small orifice in the automatic air release valve through which the air is released. When the water supply to the line is stopped and the pressure in the line is released, the float with the kinetic seal drops down, opening the large orifice through which air is admitted at high flow rates. Features Working pressures: 3-250 psi. Testing pressure: 350 psi. Light, simple and reliable structure. Body is made of high strength plastic and valve operating parts are made of specially selected non-corrosive materials. The larger than usual orifice of the automatic air release valve enables large quantities of air to be released and prevents clogging and leaks. Due to its light weight the valve can be installed in plastic piping systems, as well as heavy duty systems. The valve is recommended for use in a very corrosive, harsh conditions and industrial applications. An opening at the top of the valve provides an optional threaded drain connection to direct, or divert, any overflow during operation. The air release valve is manufactured with a 2" male NPT connection. GUARDIAN Air Release & Vacuum Valve The new dual function Guardian provides both air release and vacuum braker to protect your entire pipeline system and lower your maintenance costs! The Guardian Prevents Broken Pipelines Dual function design ensures system protection throughout all phases of operation, releasing entrapped air from pipes during their filling and admitting air into the line during emptying - preventing broken pipes due to air trapped inside and collapsed pipes from vacuum. Will Not Close by Air Flow - Only Water! The Guardian cannot be blown shut under normal field conditions of less than 15 lbs air pressure. Only water will seat the valve. The Guardian's lightweight float and o-ring construction ensures closure even under water pressures as low as 3 psi. Maintenance Free Corrosion resistant body made of fiberglass reinforced U.V. protected nylon. Maximum working pressure 150 psi. Drip tight sealing at low pressures. No need for spare parts! Stages of Operation It's as easy as one, two, three! During the filling of the line, the Guardian releases large quantities of air through an opening equal to a large size standard vent. As the water enters, the float rises forcing the valve to close. During normal flow, while the line is under pressure, the valve remains closed. As the line empties, or during any pressure drop, the float drops down and opens the valve. Air is admitted, breaking the vacuum created by the withdrawing water, preventing suction damage to the lines. | A.R.I. | Arkal | Dorot | Bioline | Control Systems | | Home | About WWS | Using Drip Irrigation Technology | | The WWS Process | Norwood Project | Copyright © 1999 Waste Water Systems, Inc. All rights reserved.