Selection of copper valves: 1. Based on the selection of control functions, all kinds of valves have their own functions, the selection should pay attention to its corresponding function. 2. According to the conditions of selection, the commonly used valve technical parameters include pressure, the maximum allowable working pressure, the working temperature (minimum and maximum temperature) and the medium (corrosive, flammable), the selection should pay attention to the above parameters and conditions The technical parameters of the valve match. 3. According to the device structure selection. Pipe system of the device structure pipe thread, flange, ferrule, welding, hoses and so on. Therefore, the construction of the valve device is necessary with the pipe structure consistent with the device, and the standard to be consistent.
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