Description The function of this Sandwich Type Swing Check Valve is to prevent the backflow of the medium in the pipeline. The valve that opens or closes by itself by the flow and force of the medium to prevent the backflow of the medium is called a check valve. The check valve belongs to the automatic valve category and is mainly used in the pipeline where the medium flows in one direction, so it only allows the medium to flow in one direction to prevent accidents. This type of valve should generally be installed horizontally in the pipeline. The product is widely used in drinking water, water supply and drainage, irrigation and energy industries. Features 1. The Sandwich Type Swing Check Valve is short in length and light in weight, which is convenient for vertical or horizontal pipeline installation. 2. The product has a narrow stroke and small closing impact. It has a smooth flow path, so the fluid resistance is small. 3. This check valve has good corrosion resistance, good reliability and good impact resistance, so it has a long service life. 4. Widely used in drinking water, water supply and drainage, irrigation and energy industries. Components No.PartMaterial 1BodyWCB/SS316 2DiscWCB/SS316 3Lifting ringZinc plated steel 4RetainerWCB/SS316 5O-ringEPDM/FPM 6O-ringEPDM/FPM 7ScrewZinc plated steel Dimensions DNL鈭匒鈭匘d 4016229414 50163210915 65164312916 80165614416.5 100167316417 125169519517.5 1501911622120.5 2002215627625.5 2503220033040.5 3003823538042.5 3503828044449 4004431649156.5 4505036055065.5 5005640561073.5 6006248672484.5China Check Valves factory website:http://www.ruimaivalve.com/metal-valves/check-valves/