Selection method and precautions of the hottest lo

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The selection method and precautions of logic valve in practical application have reduced the cost by about 15%

when selecting logic valve, select two-way cartridge valve when it is greater than or equal to 200l/min according to the flow required by the system, and select threaded cartridge logic valve when it is less than 20l/min. The valve element of the cartridge assembly has the form with tail and without tail, and the valve element with tail has the functions of buffer and throttling. The valve core also has a variety of area ratios to choose from, and the spring also has a variety of stiffness to choose from, so as to achieve a variety of opening pressures

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some domestic plug-in components are equipped with O-rings between the valve core and the valve sleeve. Dr. Deakin said that this is equivalent to the increase of production factors by 1000 times, which can ensure the sealing, but the reaction speed is slow. There are various diameters of damping holes in the control cover plate and valve core. Large damping holes have fast response speed, but large impact and small damping holes have the opposite effect. If the action of the logic valve will affect the function of the system successively, special care should be taken when selecting the diameter of the damping hole. There are many types of control cover plates, which should be carefully selected according to the system conditions

when designing the valve block, the positioning hole of the cover plate should be painted, and the code of each oil port should be marked for assembly and maintenance. The type selection should be based on the flow and pressure of the system and its flow pressure curve. Too small will often cause too much pressure loss of the system and heat the system. If the type selection is too large, it will make the system huge, cause economic waste, and promote the rapid development of domestic safety belt enterprises

there are two kinds of sealing materials for logic valve, fluororubber seal is suitable for phosphate medium, and nitrile rubber seal is suitable for mineral oil medium. Fluorine lined butterfly valve

logic valve is especially suitable for valve quick hydraulic drive device because of its high pressure and large flow characteristics. There are mature logic valve products at home and abroad, and its application prospect in valve quick hydraulic drive device is broad

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