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Application characteristics of logic valves
Oct 17, 2017

In the choice of logic valve, should be based on the required flow of the system, greater than or equal to 200l / min when the use of two-way cartridge valve, less than 20l / min is selected thread plug-in logic valve. The spool of the cartridge assembly has a tail and no tail, with the tail with a buffer and throttling and so on. Spool also has a variety of areas to choose from, spring also has a variety of stiffness to choose from, in order to achieve a variety of open pressure.

Some of the domestic plug-in components in the spool and valve sleeve between the O-ring, so to ensure that the seal, but the reaction speed is slow. Control the cover and the valve core in the damping hole has a variety of diameter, damping hole large reaction speed, but the impact of large, damp hole is small. If the logic valve action will affect the system function, in the choice of the diameter of the hole, should be particularly careful. There are many models to control the cover, should be carefully selected according to the system situation.

Design the valve block should be painted on the cover of the positioning hole, and indicate the code of each port, in order to assembly and maintenance. Should be based on the system flow and pressure and its flow - pressure curve selection, too small will often cause the system pressure loss is too large, so that the system fever, if the election is too large, will make the system huge, resulting in economic waste.

Logic valve has two kinds of sealing material optional, fluorine rubber seal for phosphate media, nitrile rubber seal for mineral oil medium.

Because of its high pressure and high flow characteristics, the logic valve is especially suitable for the rapid hydraulic drive of the valve. It has mature logic valve products both at home and abroad. Its application prospect in the rapid hydraulic drive of the valve is wide.