Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China float valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem float valves are suitable for acid, alkali, water, steam, seawater, coal gas and natural gas. They are widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy. The use of specialized software of Pro/E and CAD has shorted the P&D and trial manufacture cycle, and greatly improved the service life and dependability of products. Our high-quality products have been exported to the North Amercia, UK, USA, Germany, Italy, India, France, Australia, Japan.

It is composed of valve body, valve seat, diaphragm, springs, valve bonnet and etc. It is controlled by float valve and adjusted with the pressure difference between the above and below diaphragm. When the pressure water that has entered control cell below the diaphragm is drained to the low pressure area, pressure on the bottom of the valve and below the diaphragm is greater than that on the above diaphragm,thus the valve seat is pushed to fully-open position and water flows in. When water on above the diaphragm is not able to be drained to low pressure area, pressure on above the diaphragm is greater than that on below the diaphragm, thus pushing the valve seat to fully-closed position and stop water from flowing in. Both are made mostly from plastic with a little stainless steel to avoid reacting with the nutrient solution. Contact us if you need help installing them or need an explanation of exactly how they can be used.

Normal pressure: 1.6MPa. Working medium: cold & hot water, gas fuel, oil, etc. Working temperature: Between -20 degrees and 150 degrees. Thread standard: 55 inches system pipe thread. Float valves and lever valves are designed to control the level of liquids through mechanically actuation. Float valves are actuated through the attached float ball, float rod, and lever assembly and do not require any external power source. Lever valves are actuated through the use of some external power source such as manual operation, float boxes/mechanisms, electric motors or other actuators, through external linkage to the lever of the valve. It is one of the most advanced valves in China. It can precisely control water level. Control water level regardless of water pressure. Perfect seal without any leakage and close and open nimbly and with good duration. It is mainly used in the automatic water control system of water towers and tanks as well as some special sector such as oil store.

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