1. Check valve refers to a valve in which the opening and closing parts are valve discs or ball cores, and rely on their own weight and medium pressure to block the backflow of the medium;
2. It should be noted that the check valve at the pump outlet is easily affected by the water hammer effect, and auxiliary facilities such as soft connections and water hammer eliminators should be installed on the pipeline;
3. The bottom valve is a check valve with a filter mesh. Its function is to ensure that the liquid flows in the suction pipe in one direction and make the pump work normally. When the pump stops working for a short period of time, the liquid cannot return to the water source box, ensuring that the suction pipe is filled with liquid to facilitate the start of the pump.
Ningbo Baodi Plastic Valve Co., Ltd. traces its origins back to 1979 and is recognized as one of the earliest enterprises in China to design and produce industrial plastic valves, having received acceptance from the Ministry of Chemical Industry.
Over the past 47 years since its founding, the company has designed and manufactured a wide range of plastic valves for the most demanding industries. It has served tens of thousands of enterprises both domestically and internationally, with exports to more than 60 countries, consistently remaining a leading manufacturer of industrial thermoplastic valves and piping systems. Our professional service and stable quality have always been highly recognized and appreciated by customers worldwide.
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