23019734 transmission 12V solenoid valve for TEREX TR100

Matters needing attention in selection of solenoid valve

One: Applicability

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

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

The allowable liquid viscosity of solenoid valve is generally below 20CST, and it should be indicated if it is greater than 20CST.

When the working pressure difference and the highest pressure difference of pipelines are less than 0.04MPa, direct-acting and step-by-step direct-acting types such as ZS, 2W, ZQDF and ZCM series should be selected. When the minimum working pressure difference is greater than 0.04MPa, the pilot solenoid valve can be selected; The maximum working pressure difference should be less than the maximum calibration pressure of solenoid valve; Generally, solenoid valves work in one direction, so pay attention to whether there is reverse pressure difference, if there is a check valve.

When the fluid cleanliness is not high, a filter should be installed in front of the solenoid valve. Generally, the solenoid valve requires a better cleanliness of the medium.

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

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

The power supply current and power consumption should be selected according to the output capacity, and the power supply voltage is generally allowed to be about 10%. It must be noted that the VA value is high during AC starting.

Second, reliability

Solenoid valves are divided into normally closed and normally open types; Generally, normally closed type is selected, with power on and power off; But when the opening time is long and the closing time is short, the normally open type should be selected.

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

When the action time is short and the frequency is high, the direct action type is generally selected, and the fast series is selected for large caliber.

Third, security

Generally, solenoid valves are not waterproof, so please choose waterproof type when conditions do not permit, and the factory can customize it.

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

All stainless steel should be used for corrosive liquid, and plastic king (SLF) solenoid valve should be used for strong corrosive liquid.