liquid ammonia special ball Industrial Valves applied occasion:

liquid ammonia special ball valve usually use nylon and ptfe as seat sealing material, therefore its use temperature is limited by seat sealing material. As function of ball valve is on the metal sphere under the action of medium, in between the plastic seat clamp to complete ( The floating ball valve) 。 Seat sealing under the certain contact pressure effect, elastic-plastic deformation of local region. The deformation can be made of the manufacturing precision and surface roughness of a sphere, to ensure that the ball valve sealing performance.

special ball valve seat sealing liquid ammonia is usually made with ptfe, so in the choice on the structure and performance of the ball valve, want to consider the refractory of ball valve and fire prevention, especially in petroleum, chemical industry, metallurgy and other departments, in yi Ran, yi Bao medium used in the equipment and piping system of ball valve, more should pay attention to fire and fire prevention. Usually, in two position adjustment, sealed performance is strictly, mud, wear, reducing channel, opening and closing action quickly ( 1/4 turn to open/close) , high pressure cut-off ( Differential pressure) , low noise, have spirit cave and gasification phenomenon, into the atmosphere of a small amount of leakage, small operation torque, small fluid resistance of the pipeline system, it is recommended to use ball valves.

liquid ammonia for ball valves according to the classification of actuator can be chosen according to different process equipment pneumatic or electric actuators, forming an and electric ball valves, pneumatic ball valve such as pneumatic ball valve must be regulated to achieve proportional valve positioner, liquid ammonia is special ball valve for ordinary poor corrosion resistance of cast steel valve, shell yi perforation faults, special types according to the specific characteristics of ammonia ball valves in the valve body material selection on the corrosion resistance of steel ( Carbon steel corrosion resistant alloy elements) , can resist the corrosion of gas, liquid ammonia, low temperature 40 ℃ to - - Working conditions of + 120 ℃, the maximum guarantee use requirement. Widely used in petroleum, chemical industry, pharmacy, fertilizer and other industries.

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