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Logic valve in the practical application of precautions
In the selection, should be based on system traffic, greater than or equal to 200l / min use two-way cartridge valve, less than 20l / min is the choice of threaded cartridge type. Cartridge assembly cartridge with tail and without tail form, with the tail of the buffer and throttle and so on. There are a variety of valve core area ratio to choose from, the spring also has a variety of stiffness to choose from, in order to achieve a variety of opening pressure. String 2 Some domestic plug-in assembly with O-ring between the valve plug and sleeve, which can ensure the seal, but the reaction speed. Damping holes in the control cover and the spool have a variety of diameters, large damping reaction hole reaction speed, but the impact of a large, small damping holes on the contrary. If the action will have an impact on the function of the system, the diameter of the orifice should be chosen with particular caution. There are many types of control covers and should be carefully selected according to the system. When designing the valve block, draw the positioning hole on the cover and designate the code of each port for assembly and maintenance. Should be based on system flow and pressure and flow - pressure curve selection, too small will often result in system pressure loss is too large, the system fever, if the selection is too large, it will make the system huge, resulting in economic waste. There are two kinds of sealant string 3 optional, fluorine rubber seal suitable for phosphate media, nitrile rubber seal suitable for mineral oil media. Because of its high pressure and high flow characteristics of the valve is particularly suitable for rapid hydraulic drive, both at home and abroad have mature products, rapid application of hydraulic actuators in the valve is promising.