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Air Relief Valves, Model AVR/AVRS

DN80 - DN300

The air relief valve is an automatic air relief/vacuum valve withadditionalsurge checkvalve

Operation
•Release air from pipeline during fillingthe system and release air pockets in the flow,•Prevent vacuum, by adding air when apipeline is emptied,•Constantly protect the pipeline from airtraps under pressure,•Dampen sudden pressure or flow riseby the surge check valve that operates as an anti-slam valve and ensures long lasting operation. Features
•Single or double orificeSingle to release and add large volumes of air during filling and emptying. Double to release small volumes (bubbles) under pressure•Additional surge check valve (anti-slam)to dampen sudden pressure volume rise•Positive shut-off at p = 0.1 bar •Outlet opening protected by hood •Various coatings or materials possible •No moving parts that can be blocked bydebris and cause malfunction•Reliable and proven design •Optional combination with isolation gate-or butterfly valve The valve can consist of
1.A single orifice valve AVR 1 (A) 2.A double orifice valve AVR 2 (A + B) 3.A single orifice valve with surge checkvalve AVRS 1 (A + C)4.A double orifice valve with surge checkvalve AVRS 2 (A + B + C) General application
The air valve offers an excellent solution for releasing and adding air to water pipelines, protecting line systems, improving efficiency and solving air related surge problems. Technical data
Water distribution Pressure (bar):16 (25) Temperature (°C):-20 to +80 * Sizes (mm):80 - 300 Flange accommodation:ISO 2531, BS 10E(other flange drillings on request)* Depending on medium BAC www.tycovalves-eu.com
Tyco reserves the right to change the contents without noticeRMISB-0012-EN-0710