uxcell UPVC Check Valve, 20mm ID Single Union Check Valve Fit 1/2" OD Pipe DN15 Slip Swing No-return Valve for Backflow Prevention, Clear

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• [What You Get] - Package content comes with 1 piece of UPVC plastic ball union check valve fit for 1/2" OD pipe, with 20mm/0.79inch inner diameter, 88 x 52mm/3.46 x 2.05inch (L*W) in overall size.
• [Material] - The check valve is made of UPVC plastic, which is thick, strong and durable, heat-resistant and cold-resistant, and not easy to break. It has high hardness, tight structure and corrosion-resistant performance.
• [Anti-backflow & Anti-leakage] - The union check valve, the valve body is designed with a round ball inside, which allows one-way flow and closes to prevent backflow. There is a gasket and O-ring to provide excellent sealing to prevent leakage.
• [Easy to Install] - This ball check valve needs to be installed vertically, make sure it is installed in the upstream position to work properly. There is an arrow mark direction on the valve body, and the arrow points to the flow direction. Please do not install it upside down.
• [Wide Application] - It is widely used in domestic and commercial water pipes, sewage pools, swimming pools, irrigation systems, spraying systems, etc. The valve body is transparent, and the dynamics of the liquid in the pipe can be clearly observed, which is convenient for monitoring the working conditions.