What are the steps to select the stainless steel valve? Stanless steel valve provided by Fuxin steel Welcome to buy. Let's introduce the stainless steel valve to you Choose the steps.
1) the purpose of the valve in the equipment or device, and the working conditions of the valve: applicable medium, working pressure, working temperature, etc.
② determine the nominal diameter and connection mode of the pipe connecting the valve: flange, thread, welding, etc.
③ determine the mode of valve operation: manual, electric, electromagnetic, pneumatic or hydraulic, electrical or electro-hydraulic linkage, etc.
④ according to the medium transported by the pipeline, working pressure and working temperature, the materials of shell and internals of the selected valve are determined: gray cast iron, malleable iron, ductile iron, carbon steel, alloy steel, stainless acid resistant steel, copper alloy, etc. (5) determine the type of valves: gate valve, globe valve, ball valve, butterfly valve, throttle valve, safety valve, pressure reducing valve, steam trap, etc.
6) determine valve parameters: for automatic valves, the allowable flow resistance, discharge capacity and back pressure should be determined according to different needs, and then the nominal diameter of the pipe and the diameter of the valve seat hole should be determined.
7) determine the geometric parameters of the selected valve: structural length, flange connection form and size, size of valve height direction after opening and closing, size and quantity of bolt holes connected, and external dimension of the whole valve.
8. Select the appropriate valve products by using the existing data: valve products catalog, valve products samples, etc.