Hydraulic control valve selection and precautions
Casting Machining Customized Cnc Parts is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.
Hydraulic control valve selection and precautions
The hydraulic control valve is a water pressure control valve, which consists of a main valve and its attached conduit, pilot valve, needle valve, gate valve, globe valve, ball valve and pressure gauge.
When using a hydraulic control valve, first of all, pay attention to the selection. Improper selection will cause water and air leakage. When selecting the hydraulic control valve, the displacement of the hydraulic control valve must be selected according to the hourly steam consumption of the equipment multiplied by the selection ratio of 2-3 times as the maximum condensed water. In order to ensure that the hydraulic control valve can discharge condensate as soon as possible while driving, the temperature of the heating device can be quickly increased. The hydraulic control valve does not discharge enough energy, which will cause the condensed water to be discharged in time and reduce the thermal efficiency of the heating equipment. When the hydraulic control valve is selected, the hydraulic control valve cannot be selected with the nominal pressure, because the nominal pressure can only indicate that the hydraulic control valve body is subjected to the pressure level, and the hydraulic control valve has a large difference between the nominal pressure and the working pressure. Therefore, the displacement of the hydraulic control valve should be selected according to the working pressure difference. The working pressure difference refers to the difference between the working pressure before the hydraulic control valve and the back pressure of the hydraulic control valve outlet. The choice of hydraulic control valve requires accurate and unobstructed steam-blocking drainage, high sensitivity, improved steam utilization, no leakage of steam, reliable working performance, high back pressure rate, long service life and convenient maintenance are the preferred conditions.
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