Steam pressure reducing valves are widely used in the cold and hot water supply systems of urban and high-rise buildings, which can replace conventional partitioned water pipes and save equipment. It can also play a role in reducing pressure and stabilizing pressure in typical hot and cold water pipe networks. This product has smooth pressure regulation and stabilization actions, and is suitable for pipelines containing water and non corrosive liquid media.

Below, the editor will briefly introduce the working principle of the pressure reducing valve - the pressure reducing valve reduces the inlet pressure to a certain required outlet pressure through throttling of the opening and closing components, and keeps the outlet pressure stable. When the pressure reducing valve leaves the factory, the regulating spring is in an uncompressed state. At this time, the main valve disc and the auxiliary valve disc are in a closed state. When in use, rotate the regulating screw clockwise to compress the regulating spring, causing the diaphragm disc to move and open the auxiliary valve disc. The medium enters the piston from hole A through the auxiliary valve seat to hole B. Under the pressure of the medium, the piston moves downward to push the main valve disc away from the main valve seat, allowing the medium to flow behind the valve. At the same time, it enters the lower part of the diaphragm through hole C. When the pressure behind the valve exceeds the set pressure, the diaphragm is pushed upward to compress the regulating spring, and the auxiliary valve disc moves in the closing direction, reducing the medium flowing into the upper part of the piston and the pressure. At this time, the main valve disc moves up and down under the force of the main valve disc spring, reducing the gap between the main valve disc and the main valve seat, and reducing the medium flow rate, causing the pressure behind the valve to drop to a new equilibrium. Conversely, when the pressure behind the valve is lower than the set pressure, the gap between the main valve disc and the main valve seat increases, and the medium flow rate also increases, causing the pressure behind the valve to increase and reach a new equilibrium.

Our company's steam pressure reducing valve belongs to the pilot piston pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. By adjusting the spring pressure to set the outlet pressure, using a diaphragm to sense changes in outlet pressure, and driving the piston to adjust the size of the overcurrent area at the throttle position of the main valve through the opening and closing of the pilot valve, the pressure reduction and stabilization function is achieved.