Suit for hot or cold water, gas, air, oils, low viscosity fluids, hydrocarbons, gasoline, kerosene, or engine fuel. Automatic float valve, based on a new technology platform and completely overcome the many traditional shortcomings. Floats always be floating in the water, when the water rise, floats followed the rise.And rod driven by rising also rise. Connected to the rod and the valve, when up to a certain position, close water. Water flow is big, high efficiency., Manufacturer: LSIJN