small stainless steeL304/316 automatic air vent valve The automatic air vent valve are usually used in HVAC, solar system, floor heating system, chemical equipment ,wind power system ,and so on. (1)All valves have been tested prior to shipment; ensure that the valves only exhaust air during working. (2)The valves will constant work to protect system when there are bubbles. (3)The body and elements are made by stainless steel 304.That can make sure the valve can work for a longer working life.
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