Product Type: Check ValveProduct Name:Diaphragm Type Check ValveProduct Details:Place of Origin: ChinaCertification: ISO9001-CEProduct DescriptionThe Diaphragm Type Water Hammer Preventive Check Valve comprises valve body, disc and guide chamber.The valve body is made of ggg50 ductile iron, which provides strength and durability. The EPDM rubber encapsulated disc with the strengthening nylon ensures maximum corrosion resistance and drop tight seal. The special streamline design of the guide chamber gives low resistance.Quick opening and closing with no mechanical impact allows the valve work noiselessly. The valve disc can effectively absorb water hammer in the pipe, thereby reducing vibration. The valve is simple, light weight, andeasy handling. Application: The valve can be used in potable water distribution system, sewage water treatment plants, petrochemical industry, energy and power system, food and pharmaceutical industry, natural gas and coal gas system, HVAC system, fire control system and construction building pipelines, to prevent the reverse of flow. Main parts list and materialsBody Material : GGG-50 coated with fusion bonded epoxyStem:  2Cr13Disc:  EPDM, NBRGuide Chamber : GGG-50 coated with fusion bonded epoxyBack Body : GGG-50 coated with fusion bonded epoxy