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What Is The Difference Between The Three-valve And Five-valve

Jul 08, 2019

The function of the three-valve group is to turn on or off the positive and negative pressure chambers and the pressure guiding tubes of the differential pressure transmitter, or to cut or turn the positive and negative pressure chambers. The five-valve group integrates the high-low pressure drain valve on the basis of the three-valve group, and there is no difference between using the same three-valve group. Although the five-valve group has added high and low pressure drain valves, it is generally not used for sewage discharge, and is usually used to discharge gas and liquid in the transmitter capsule.

The function of the three-valve group is to turn on or off the positive and negative pressure chambers and the pressure guiding tubes of the differential pressure transmitter, or to cut or turn the positive and negative pressure chambers.

The five-valve group integrates the high-low pressure drain valve on the basis of the three-valve group, and there is no difference between using the same three-valve group.

Although the five-valve group has added high and low pressure drain valves, it is generally not used for sewage discharge. It is usually used to discharge the gas and liquid in the diaphragm box of the transmitter. After it is emptied, the zero point is corrected, and the sewage is still used after the transmitter. The drain screw row, because the five-valve is installed before the transmitter, can only discharge the inside of the pressure-guiding pipe, and the bellows can be discharged from the five-valve group when there is something dirty. However, after using the five-valve group, it is convenient to check and calibrate the transmitter online.

The two-valve group and the three-valve group are still used more often, so when are they generally used?

The three-valve and differential pressure transmitters are used together. The three-valve group has a wide range of applications, consisting of three valves: high pressure valve, low pressure valve and balance valve. The high pressure valve is connected to the positive pressure chamber of the differential pressure transmitter, and the low pressure valve is connected to the negative pressure chamber of the differential pressure transmitter. The function of the three-valve group is to turn on or off the positive and negative pressure chambers and the pressure guiding pressure tube of the differential pressure transmitter, or to turn on or off the positive and negative pressure chambers.

The two-valve valve is matched with the differential pressure transmitter. The function of the two valve group is to turn on or cut off the positive and negative pressure chambers and the pressure point of the differential pressure transmitter, or cut off or conduct the positive and negative pressure chambers.