Product Name: Stainless Steel 304/316 Automatic Air Vent Valve Safety Valve Model NO.: 262 Material: Stainless Steel Structure: Spring Closed: Closed Pressure: Adjustable Connection: Thread Temperature: High Temperature Certification: ISO, CE Media: Water Trademark: Aetv or OEM Transport Package: Bag--Box--Carton--Case Specification: 3/8" 1/2" 3/4" 1" Origin: Jiangsu Pronvince HS Code: 84814000 Product Description AETV is a Valve Manufacturer.The main products are bronze safey valves ,stainless steel 304/316 safety valves, air vent valves,pressure reducing valve,water filling valve,needle valve,breather valve,temperature and pressure relief valve,anti-siphon vacuum breaker valvesmall stainless steeL304/316 automatic air vent valveThe 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.