Ⅰ. Select the solenoid valve according to the pipeline parameters: diameter specification (ie DN), interface method
1. Determine the diameter (DN) size according to the inner diameter of the pipeline or the flow requirements on site.
2. Interface mode, generally > DN50 should choose flange interface, ≤ DN50 can be freely selected according to user needs.
Ⅱ. Select the material and temperature group of the solenoid valve according to the fluid parameters
1. Corrosive fluids: corrosion-resistant solenoid valves and all stainless steel should be used;
2. Edible ultra-clean fluid: food-grade stainless steel solenoid valve should be used.
3. High temperature fluid: choose a solenoid valve made of high temperature resistant electrical materials and sealing materials, and choose a piston type structure.
4. Fluid state: generally gaseous, liquid or mixed state, especially when the diameter is larger than DN25, it must be distinguished.
5. Fluid viscosity: usually below 50cSt can be selected arbitrarily, if it exceeds this value, a high-viscosity solenoid valve should be used.
Ⅲ. Select the principle and structural variety of the solenoid valve according to the pressure parameters
1. Nominal pressure: This parameter has the same meaning as other general valves, and is determined according to the nominal pressure of the pipeline.
2. Working pressure: If the working pressure is low, the principle of direct-acting or step-by-step direct-acting must be used; when the minimum working pressure difference is 0.04Mpa, direct-acting, step-direct-acting and pilot-operating can be selected.
Ⅳ. Electrical selection of solenoid valve: AC220V and DC24 should be preferred for the voltage specification, which is more convenient
Ⅴ. Choose according to the duration of the solenoid valve's continuous working time: normally closed, normally open or continuously energized
1. When the solenoid valve needs to be opened for a long time, and the duration is longer than the closing time, the normally open type should be selected.
2. If the opening time is short or the opening and closing time is not long, the normally closed type is selected.
3. However, for some working conditions used for safety protection, such as furnace and kiln flame monitoring, the normally open type cannot be selected, and the long-term power-on type should be selected.
Ⅵ. The solenoid valve selects auxiliary functions according to the environmental requirements: explosion-proof, non-return, manual, waterproof fog, water shower, diving
ZECO Valve Group always adheres to the business tenet of "innovating the brand with science and technology, winning customer satisfaction with quality", and has won a good market reputation and a stable customer network. The company's credit rating is always "AAA". We sincerely hope to cooperate with you to push the manufacturing and application of Chinese valve products to a new stage. If necessary, welcome to consult.
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