Deyue Valve focuses on the production, manufacturing, sales and service of hard sealing wear-resistant ball valves, electric high-performance ball valves and hydraulic eccentric hemisphere valves.
When purchasing eccentric hemisphere valve, we should pay attention to the following points: 1. Determine the parameters of the ball valve: for the active valve, the allowable flow resistance, discharge capacity, etc. shall be determined first according to different requirements, and then the nominal diameter of the pipeline and the diameter of the valve seat hole shall be determined. 2. Specify the use of eccentric hemisphere valve in equipment and equipment, and determine the working conditions of ball valve: applicable medium, working pressure, working temperature, etc. 3. Determine the nominal diameter and connection method of the pipeline connected with the eccentric hemisphere valve: flange, thread, welding, etc. 4、determineOperation method of eccentric hemisphere valve: manual, electric, electromagnetic, pneumatic or hydraulic, electric linkage or electro-hydraulic linkage. 5. According to the medium, working pressure and temperature transported by the pipelinedetermineData of the shell and internals of the selected eccentric hemisphere valve: gray iron, malleable iron, ductile iron, carbon steel, alloy steel, stainless acid resistant steel, copper alloy, etc. 6、determineParameters of the selected eccentric hemisphere valve: structural 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 dimension, etc. The above are the points you should pay attention to when purchasing eccentric hemisphere valves. If you need help, you can consult Wenzhou Jiadian Machinery Manufacturing Co., Ltd
