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Four performance characteristics of the solenoid valve products

First, the characteristics of the solenoid valve
1, quality gas, liquid or mixed state of the selection of different types of solenoid valves, ZQDF for air, ZQDF - Y for liquid, ZQDF - 2 (or -3) for steam, otherwise easy to cause misoperation. ZDF series multi-function solenoid valves can be connected to gas. Liquid. It is best to specify the state of the media when the time is set.
2, the media temperature of different specifications of products, otherwise the coil will burn, seals aging, seriously affect the life.
3. The viscosity of the medium is usually below 50cSt. If the value exceeds this value, the diameter is greater than 15mm, and the ZDF series multi-function solenoid valve is used for special orders. The diameter is less than 15mm and the high viscosity solenoid valve is set.
4, when the medium cleanliness is not high, the recoil filter valve should be installed in front of the solenoid valve. When the pressure is low, the direct acting diaphragm type solenoid valve can be used as CD P.
5, if the medium is directional and not allowed to reverse flow ZDF - N and ZQDF - N only need two-way flow, please make special request. 6 medium temperature should be selected in the allowable range of solenoid valve.
Two. Pipe parameters
1, select valve port and type according to the requirement of media flow and the way of pipe connection. For example, for a pipeline to switch to two pipelines, small path selected CA5 and Z3F, medium or large diameter please select ZDF - Z1/2. If you want to control the convergence of two pipes, please select ZDF Z2/1.
2. According to the flow and valve Kv value, the nominal diameter is selected, and the inner diameter of the pipe is also selected. Please note that some manufacturers do not have the Kv value, often the size of the valve port is smaller than the diameter of the interface, so we must not covet the low price and make a mistake.
3. Work pressure difference. If the minimum working pressure difference is above 0.04Mpa, indirect pilot type can be used; the minimum working pressure difference is close to or less than zero, and direct or stepwise direct type must be adopted.
Three. Environmental conditions
1. The highest and lowest temperature of the environment should be selected within the allowable range. If there is excess deviation, special orders should be made.
2, the environment is relatively high humidity and water droplets and other occasions, should be selected waterproof electromagnetic valve.
3, the environment often vibrate, bump and impact and other occasions, special varieties should be selected, such as marine solenoid valves.
4, in corrosive or explosive environment, priority should be given to the selection of corrosion resistance according to safety requirements.
5, if the environment space is restricted, please use the multi-function solenoid valve, because it eliminates bypass and three manual valves and is convenient for online maintenance.

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