How to select solenoid valves? List of precautions in the selection of solenoid valves?

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

<>1: Suitable for the spike of the town.

The fluid in the pipeline must be consistent with the medium calibrated in the selected solenoid valve series model.

The temperature of the fluid must be less than the calibration temperature of the selected solenoid valve.

The allowable liquid viscosity of the solenoid valve is generally below 20cst, and greater than 20cst should be indicated.

When the maximum pressure difference of the pipeline is less than the maximum pressure difference, such as ZS, 2W, ZQDF, ZCM series, etc., direct-acting type and step-by-step direct-acting type should be selected; When the minimum working pressure difference is greater than that, a pilot-operated (differential pressure) solenoid valve can be selected; The maximum working pressure difference should be less than the maximum calibrated pressure of the solenoid valve; Generally, solenoid valves work in one direction, so pay attention to whether there is a counterpressure difference, if there is a check valve.

When the fluid cleanliness is not high, the filter should be installed in front of the solenoid valve, and the general solenoid valve requires good cleanliness of the medium.

Pay attention to the flow orifice size and the diameter of the pipe; Solenoid valves are generally only controlled by two switches; If conditions permit, please install a bypass pipe to facilitate maintenance; When there is water hammer, the opening and closing time adjustment of the solenoid valve should be customized.

Pay attention to the influence of ambient temperature on the solenoid valve.

The power supply current and consumption power should be selected according to the output capacity, and the power supply voltage is generally allowed to be about 10%, and it must be noted that the va value is higher when AC starts.

2. Reliability.

Solenoid valves are divided into two types: normally closed and normally open; Generally, the normally closed type is selected, which is turned on and closed when the power is off; However, when the opening time is very long, and the closing time is very short, the normally open type should be selected.

Life test, factory peibu generally belongs to the type test project, to be precise, there is no professional standard for solenoid valves in China, so be cautious when choosing solenoid valve manufacturers.

When the action time is very short and the frequency is high, the direct-acting type is generally selected, and the fast series is selected for large diameter.

3. Security.

Generally, the solenoid valve is not waterproof, please choose the waterproof type when the conditions do not allow, and the factory can be customized.

The maximum calibrated nominal pressure of the solenoid valve must exceed the maximum pressure in the pipeline, otherwise the service life will be shortened or other accidents will occur.

All stainless steel type should be used for corrosive liquids, and plastic king (SLF) solenoid valves should be used for strong corrosive fluids.