We can purchase pneumatic eccentric hemisphere valve by the following methods:
1. Determine the parameters of the ball valve: for the active valve, it is necessary to determine the allowable flow resistance, discharge capacity, etc., and then determine the nominal diameter of the pipe and the diameter of the valve seat hole.
2. Define the use of pneumatic eccentric hemisphere valve in equipment and equipment, and determine the working conditions of the ball valve: applicable medium, working pressure, working temperature, etc.
3. Determine the nominal diameter and connection method of the pipeline connected with the pneumatic eccentric hemisphere valve: flange, thread, welding, etc.
4. Determine the method of operating pneumatic eccentric hemisphere valve: manual, electric, electromagnetic, pneumatic or hydraulic, electrical linkage or electro-hydraulic linkage.
5. According to the medium delivered by the pipeline, working pressure and temperature, determine the data of the shell and internals of the selected pneumatic eccentric hemisphere valve: gray iron, malleable iron, ductile iron, carbon steel, alloy steel, stainless acid resistant steel, copper alloy, etc.
6. Determine the parameters of the selected pneumatic eccentric hemisphere valve: structure length, flange connection mode and dimension, dimension of valve height direction after opening and closing, dimension and number of bolt holes connected, overall ball valve appearance dimension, etc.
The above is the selection method of pneumatic eccentric hemisphere valve. You can refer to it. If you need products, you can consult Wenzhou Jiadian Machinery Manufacturing Co., Ltd.
