ChinaBrassSpringCheckValveManufacturs Details Brass Valve Body: High-density forging, no blister, no air holes, no leakage. Made by special high precision CNC machines. Brass Bonnet: High-density forging, no blister, no air holes, no leakage. Made by special high precision CNC machines. Brass Flap: With hard sealing structure, is not easy to abrade after long-term use, with excellent sealing performance, and can be used in various environments. EBW vertical check valves are used in the suction system fuel lines to maintain fuel filling. Check valves are installed directly below the distributor pump unit. EBW offers both single and double lift valve models. Double lift models offer twice the protection against loss of basic function. Metal-to-metal lifting valve seat. All valves are pressure tested to ensure accuracy. Body: Brass. Pop: Brass. Can be customized. FAQ锛?/p> Q:What does a check valve do? A:The phenomenon of backflow of the medium can be effectively prevented, and the discharge of the medium in the container can also be avoided. At the same time, for pumps and motors, they can also be prevented from reversing. This kind of valve mainly uses its own type and pressure to play a certain blocking role.ChinaBrassSpringCheckValveManufacturs website:http://www.winsoems.com/brass-valve/brass-spring-check-valve/