Our products are widely used in water treatment equipment, chemical equipment, petrochemical equipment, oil equipment, paper making equipment, mining equipment, power equipment package, gas equipment, food equipment, pharmaceutical equipment, water supply and drainage facilities, municipal valves, valve machinery, electronics industry valves, valve urban construction, industrial pipeline valves, common parts and components, industrial equipment, fire HVAC, central air conditioning, filtration equipment, environmental equipment and other fields. Welcome to order! Nominal: PN1.6-60.0Mpa Operating temperature: -400-450 ℃ Nominal diameter: DN10-400mm Connection: Flanged, Threaded, Welding Material: 304,316,304L, 316L, SS316, WCB, CF3, CF8 , cast steel, cast iron, ductile iron, forged steel, stainless steel and copper. Safety valve is a safety device closed system, its opening and closing pieces by the action of external forces in the normally closed state, when the medium pressure closed system increases, the valve will open automatically when you exceed a specified value, through the system medium to reduce emissions outside the system pressure to prevent damage to the system within the system of high pressure medium. Safety valves are automatic valves, mainly for boilers, pressure vessels and air conditioning, solar pipes, control pressure does not exceed the value of machinery and equipment operation play an important protective role. Haiao Ericsson is the industry's earlier professional manufacturers, the company is mainly engaged in GB valve, safety valve American standard, Japanese standard safety valve, safety valve German standard and non-standard safety valve in the development, manufacture and sale of products and durable.