Tonglu Yongxin Valve Co.,Ltd. was founded in 1994, is one of the largest manufacturers in the production of valve,from Tonglu,China. Since 20 years' hard work, probity, and innovation "attention to detail, careful to do everything, has continued to move" to build the first national manufacturer of valve "and make unremitting efforts. Due to our scientific management and Seiko secret agents, as well as "to all customers, all services to the customer" philosophy respected, got the trust of new and old customers.
The bottom valve,also known as the reverse stop valve, is a low-pressure plate valve, whose function is to ensure the single flow of liquid in the suction pipe, so that the pump works normally when the pump stops working for a short time, so that the liquid can not return to the water tank, and the suction pipe is filled with liquid to facilitate the start of the pump.
The valve is a kind of energy saving valve, generally installed in the bottom valve of the water pump suction pipe to limit the return of liquid water in the water pump pipe, mainly used in the pumping line.