What requirements must the SMC pressure relief valve meet to be used?
SMC pressure relief valves are easily transported under high pressure conditions. Steam pressure relief valves can be used where equipment pressure is critical. When using the SMC pressure reducing valve, it can meet user requirements. It is to control and adjust the pressure of water vapor. It belongs to many dangerous environments and the requirements are very strict. If the steam pressure is improperly drained, there is a possibility that the SMC decompression valve must pursue the following items. The pressure of the boiler exceeds the setting, and it is convenient for transport under high pressure. For places where equipment pressure is strictly required, steam pressure reducing valves can be used. When using the SMC pressure reducing valve, it can meet user requirements. It is to control and adjust the pressure of water vapor. It belongs to many dangerous environments and the requirements are very strict. If the steam pressure is improperly discharged, an explosion accident may occur. So the SMC regulator must pursue the following items.
Safety The generation of water vapor will generate pressure accordingly, and the SMC pressure relief valve will release the pressure generated by the equipment to meet the work requirements. It is more important to ensure the safety of equipment operators and reduce the occurrence of major accidents. Second, it can protect the equipment from excessive pressure, resulting in equipment problems. Finally, it can also provide product quality and reduce the frequency of product scrap.
Accuracy When water vapor changes, the SMC decompression valve must be able to accurately measure, can not exceed this range, otherwise it will lead to accidents. The SMC pressure reducing valve must have a high sensitivity to water vapor, which satisfies various environments for the use of SMC pressure reducing valves. With high accuracy, it is possible to debug water vapor in a timely manner. This is where the user needs his role. Although there are different requirements in different places, the first two are the first to consider the requirements of the user.
The question of the series pressure of the adjustable SMC pressure reducing valve is not a common phenomenon, but it is also a problem that may occur. As a user, we still need to take a good look at it, and we must grasp its ability to analyze and solve its causes:
In the course of use, why can the adjustable SMC pressure reducing valve lead to string pressure problems?
Due to the rupture of the pipe network at the rear pipe section of the pressure reducing valve, the valve at P1 is closed or repaired. When the pump at pump station A stops operating, the water pressure at the pipe section behind the valve is very low or even an empty pipe. When the normal water supply is resumed, the pressure at the front pipe section of the pressure reducing valve increases rapidly when the SMC pressure reducing valve suddenly opens at the pipe section in front of the pressure reducing valve or the pump at the pumping station A is turned on. The pressure between the front pipe section and the rear pipe section of the adjustable pressure reducing valve is short. There is a large pressure difference, the pressure reducing valve is too late to work, and the pressure in the upper chamber of the pressure reducing valve is very small. Under such a large pressure drive, the pressure reducing valve is forcibly opened, leading to a pressure balance between the pressure regulator and the front and rear pressure regulators. The pressure relief valve will fail for a short period of time, that is, string pressure. Since it has emerged, how can we solve it? The following summarizes three types:
1. Based on the working principle of the SMC pressure reducing valve, a pressure relief valve is installed behind the pressure reducing valve. When the pressure of the SMC pressure reducing valve is higher than P2, the SMC pressure reducing valve is opened to relieve pressure and protect the normal water supply of A village. pressure.
2, through other methods to shorten the stringing time, make it close to 0.
3. According to the working principle of the adjustable SMC pressure reducing valve, the caliber of the pilot valve and the catheter is appropriately increased, and the time for the upper and lower chambers to reach the pressure balance is reduced, and even the time difference tends to 0. Through practical verification, the second option described above is the most economical and practical. It can be opened quickly through the drain valve, so that the pressure in the upper cavity of the diaphragm is greater than the pressure in the lower cavity, prompting the adjustable pressure relief valve to quickly recover. normal. The burst time is basically zero.
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