What are the precautions for installation and maintenance of steam pressure reducing valves?

What are the precautions for installation and maintenance of steam pressure reducing valves?

Generally, steam pressure reducing valves are installed horizontally, mainly controlled by the pressure behind the valve. When the pressure sensor detects an increase in the valve pressure indication, the opening of the pressure reducing valve decreases; When the pressure decreases after detecting the pressure reducing valve, the valve opening of the pressure reducing valve increases to meet the control requirements. What precautions should be taken when installing a steam pressure reducing valve? Let's introduce the manufacturer of steam pressure reducing valve - Fushan Valve.

1. For ease of operation and maintenance, the valve is generally installed vertically on a horizontal pipe.

2. The pressure reducing valve must be installed in strict accordance with the arrow direction on the valve body to maintain the same direction as the fluid flow. If the water quality is not clean and contains some impurities, a filter must be installed at the upstream inlet of the pressure reducing valve.

3. To prevent overpressure behind the valve, a pressure reducing valve should be installed at a distance of not less than 4M from the valve outlet.

4. The pressure reducing valve plays a certain check role in the pipeline. In order to prevent the harm of water hammer, a small expansion tank can also be installed to prevent damage to the pipeline and valve. The filter must be installed in front of the inlet pipe of the pressure reducing valve, and the expansion tank must be installed behind the outlet pipe of the pressure reducing valve.

5. If you need to install a pressure reducing valve in a hot water system, you must install a check valve between the pressure reducing valve and the expansion tank. This not only allows the expansion tank to absorb the increased volume of water due to thermal expansion, but also prevents the impact of hot water backflow or pressure fluctuations on the pressure reducing valve, ensuring its long-term normal operation.

The precautions for the installation and maintenance of steam pressure reducing valves have been covered above, and I hope they can be helpful to everyone. Fushan Valve (Suzhou) Co., Ltd. was first established in, and due to development needs, an independent legal entity was established: Fushan Valve (Jiangsu) Co., Ltd., with two holding factories in Suzhou and Kunshan. The company is committed to manufacturing high-quality Fushan brand valves in the fields of air conditioning water system, process cooling water (PCW system), compressed air (CDA system), pure water system, electric butterfly valve, electric ball valve, and steam pressure reducing valve, It has a large number of loyal customers including CSCEC, CEC, CEC, and the Institute of Physics of the Chinese Academy of Sciences. Looking forward to working with you!