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Water pressure reducing valve principle and installation
A water pressure regulator is a valve that automatically reduces the working pressure of a pipe by reducing the higher water pressure in the pipe before the valve to the level required by the pipe after the valve. Pressure relief valve is widely used in high-rise buildings, urban water supply pipe network pressure over the area, mines and other occasions to ensure that the water supply system water points to obtain appropriate service pressure and flow. In view of the water loss rate and the degree of waste is almost proportional to the size of the water supply system pressure, the valve has to improve the system operating conditions and potential water saving effect, Italy OR water reducing valve according to statistics its water saving effect is about 45 %. Many types of pressure relief valve structure, the previous common thin-film, such as the spring-piston. The basic principle of the valve is to reduce the water pressure by the local resistance of the flow channel in the valve. The range of the water pressure drop is automatically adjusted by the pressure difference between the inlet and outlet of the film or piston connected with the valve flap. The basic performance (1) pressure regulating range: It refers to the output pressure of the relief valve P2 adjustable range, within the scope of the required pressure relief valve to the required accuracy. Regulating the pressure range and the main spring stiffness. (2) Pressure characteristics: It refers to the flow rate g is set value, due to input pressure fluctuations caused by the output pressure fluctuations. The smaller the output pressure fluctuation, the better the characteristics of the pressure reducing valve. The output pressure must be lower than the input pressure - the setting will not substantially change with the input pressure. (3) flow characteristics: It refers to the input pressure - timing, the output pressure with the output flow g changes in the holding capacity. When the flow rate g changes, the output pressure changes as small as possible. The lower the general output pressure, the smaller it fluctuates as the output flow changes. Italy imports OR water pressure regulator detailed analysis Italy OR water pressure reducing valve is widely used in high-rise buildings in charge of decompression, partial pressure or sudden pressure in the case of water to protect the subsequent life, production of water appliances, OR water reduction Pressure valve series includes the following products, 0232 economy branch valve, 0234 piston branch valve, 0226 diaphragm branch valve, 0204 high-pressure branch valve, OR water valve reduction pressure reduction also quiet Pressure, the export pressure is stable and stable, small size, cost-effective, choose OR water valve is to choose quality. Water pressure relief valve installation: 1. Water pressure relief valve can be installed horizontally or vertically on a flat pipe; 2. The installation of water pressure relief valve must be in strict accordance with the direction of the arrow on the valve body and fluid flow direction, if the water quality is not clean Contains some impurities, you must install the filter upstream of the water inlet valve; 3. Open the water regulator to adjust the outlet pressure of the place, with a screwdriver to adjust clockwise turn screwdriver outlet pressure becomes larger, whereas the outlet pressure reduction Small, with the pressure gauge adjustment until the outlet pressure reaches the required value; 4. Water pressure relief valve in the pipeline play a role in the non-return, in order to prevent the harm of water hammer, small expansion tank can also be installed to prevent damage to the pipe and Valves, filters must be installed in front of the inlet pipe of the pressure reducing valve, and the expansion tank must be installed in the outlet pipe of the water pressure reducing valve; 5. If you need to install the water pressure reducing valve in the hot water system, Install a check valve between the tank and expansion tank. In this way, the expansion tank can absorb the volume of water increased due to thermal expansion and prevent the influence of the backflow or pressure fluctuation of the hot water on the pressure reducing valve to ensure the long-term normal operation of the pressure reducing valve.