Q41B ammonia ball valve | cast steel ammonia ball valve | stainless steel ammonia ball valve

/Ball valve for ammonia
Choose corrosion-resistant carbon steel as the valve body material and add corrosion-resistant alloy elements to resist the corrosion of gas and liquid ammonia, and the low temperature can reach ℃℃. The valve body is all precision cast to prevent the valve from having poor corrosion resistance and easy perforation of the shell. Mainly suitable for use in refrigeration, chemical, petroleum, food, smelting, liquefied gas and other units. The working principle of ammonia ball valve
The ammonia ball valve is the same as the common flange ball valve. The opening and closing part is a sphere, and the rotation of the sphere around the axis of the valve stem is used to achieve opening and closing purposes. It is mainly composed of valve body, ball, valve seat, valve stem, handle and other components. The ball valve for ammonia adopts the cast steel two-stage flange type, and is composed of a right valve body and a left valve body. The left valve body has a flange tube shape that matches the bowl surface of the left valve body. Each valve seat sealing ring is equipped inside, and a sphere is clamped between them. There is a through hole on the sphere, and the diameter of the through hole is equal to the inner diameter of the pipe.
How to use ammonia ball valve
According to different usage requirements, ammonia pressure reducing valves have many specifications. The maximum inlet pressure is mostly , and the minimum inlet pressure is not less than the outlet pressure. There are many outlet pressure specifications, generally , and the maximum outlet pressure is .
When installing an ammonia ball valve, make sure its connection specifications are consistent with the connectors of the system being used. The ammonia balloon valve adopts hemispherical surface connection, and the two are completely matched by tightening the nut. Therefore, the two hemispherical surfaces should be kept smooth during use to ensure a good air-tight effect. High-pressure gas can be used to blow away dust before installation. When necessary, materials such as polytetrafluoroethylene can also be used as gaskets.
Ammonia balloon valves should be strictly prohibited from contact with grease to avoid fire accidents.
When stopping work, the remaining air in the pressure reducing valve should be released, and then the adjusting screw should be loosened to prevent the elastic element from being deformed under pressure for a long time.
Ammonia balloon valves should avoid impact and vibration, and should not be in contact with corrosive substances.
The usage and precautions of these ammonia valves are basically the same as those of ammonia valves. However, it should also be noted that dedicated ammonia valves are generally not used for other gases. To prevent misuse, some ammonia valves use special connections with cylinders. For example, both hydrogen and propane use left threads, also called reverse threads, and special attention should be paid to installation.
Performance parameters of ammonia ball valve
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