Solenoid valve selection method(1)


There are many types of solenoid valve selection method […]

There are many types of solenoid valve selection methods, but they are based on the working conditions and environment of the solenoid valve and the requirements of the customer. There are many types of solenoid valves, such as classification according to the working principle, classification according to the properties of the medium, classification according to environmental working conditions, and classification according to the material of the solenoid valve. Different types of solenoid valve selection have different methods and techniques.
One: Corrosion-resistant solenoid valve selects solenoid valve according to fluid parameters: material, temperature group
1, corrosive fluid: should choose corrosion-resistant solenoid valve and all stainless steel; edible ultra-clean fluid: food grade stainless steel solenoid valve should be used.
2, high temperature fluid: to choose the use of high temperature resistant electrical materials and sealing materials made of solenoid valves, and to choose the type of piston structure.
3, the fluid state: large to have a gaseous state, liquid or mixed state, especially when the caliber is larger than DN25 when ordering must be distinguished.
4. Fluid viscosity: Usually it can be arbitrarily selected below 50cSt. If it exceeds this value, high viscosity solenoid valve should be used.
Second: the gas solenoid valve selects the solenoid valve according to the pipeline parameters: the diameter specification (ie DN), interface mode
1. Determine the diameter (DN) size according to the inner diameter of the pipeline or the flow requirement.
2, interface mode, general > DN50 to choose the flange interface, ≤ DN50 can be freely selected according to user needs.
Three: Water solenoid valve selects solenoid valve according to pressure parameters: principle and structure
1. Nominal pressure: This parameter has the same meaning as other general-purpose valves and is determined according to the nominal pressure of the pipeline.
2. Working pressure: If the working pressure is low, the direct-acting or step-by-step direct-acting principle must be used; when the minimum working pressure difference is above 0.04Mpa, direct-acting, step-by-step direct-acting or pilot-operated can be used.