The valve body is the valve core of the valve. The material is commonly used in the ceramic valve core and the all -copper valve core.The main action is that the water valve and the air valve are used inside the valve, blocking water or air flow.The overall replacement is common. The best choice is to buy a valve that can be replaced alone, so there is no need to remove the valve to directly change the valve core.
The role of the valve body
1. The switch type, through a certain current or voltage, connect the coil of the battery valve to power, and then drive the internal needle valve or ball valve to displacement, thereby blocking the segment or connecting the oil circuit. Mostly used to control gear replacement 2. Pulse type, current occupy the duty ratio,Control, control through frequency. Mostly used to regulate oil pressure
What is the valve body
The valve body is a major component in the valve; there are different mechanical manufacturing methods according to the pressure level.The definition of valve "is a device used to control the direction, pressure, and flow of the fluid in the fluid system. The valve is a device that allows the medium (liquid, gas, powder) in the piping and equipment to flow or stops, and can control its flow.The material of the valve body uses different metal materials according to different process media.
Valve body material
The commonly used materials of the valve body are as follows: 1. Gray cast iron, which is suitable for the working temperature between -15 ~+200 ° C, and the nominal pressure PN ≤ 1.6MPa low-pressure valve.2. Black heart can forging cast iron, suitable for the working temperature between -15 ~+250 ° C, and the nominal pressure PN ≤ 2.5MPa medium and low pressure valve.3. Ball and ink cast iron, suitable for the working temperature between -30 ~+350 ° C, the nominal pressure PN ≤ 4.0MPa medium and low pressure valve.4. Carbon steel (WCA, WCB, WCC), suitable for the middle and high-pressure valves between -29 ~+425 ° C. Among themReplacement of ASTMA105.5. Low-temperature carbon steel (LCB) is suitable for a low-temperature valve valve between -46 ~+345 ° C.6. Alloy steel (WC6, WC9), suitable for high-temperature high-pressure valves for non-corrosive media between -29 ~+595 ° C; WC5 and WC12 are suitable for working temperature between -29 ~+650 ° CHigh -temperature and high pressure valve of corrosive media.

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