Installation and Maintenance of Precision Pressure Reducing valves The following points should be noted in the installation and maintenance of steam pressure reducing valves:
Handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.
Double gate valves should be installed vertically (i.e. stem in vertical position with handwheel on top).
Gate valves with bypass valves should be opened before opening (to balance the pressure difference between inlet and outlet and reduce the opening force).
The gate valve with driving mechanism shall be installed according to the instructions of the product.

Lubricate valves at least once a month if they are frequently used on and off.

Application and main performance: The valve is suitable for water, steam, air medium pipeline, by regulating the inlet pressure to reduce to a certain need of the outlet pressure, when the inlet pressure and flow changes, the energy of the medium itself automatically maintain the outlet pressure in a certain range.

Working principle and structure: When the reducing valve leaves the factory, The adjusting spring is in the uncompressed state, at this time the main valve disc and pay valve disc in the closed state, the use of clockwise rotation of the adjusting screw, compression adjusting spring, so that the film disc move top open pay valve disc, the medium from a hole through the pay valve seat to the b hole into the piston above, the piston under the action of medium pressure, move down to push the main valve disc away from the main valve seat, so that the medium flow to the valve. At the same time from the c hole into the diaphragm below, when the valve pressure exceeds the setting pressure, push the diaphragm to move up the compression regulating spring, the valve disc moves to the closed direction, so that the medium above the flow into the piston decreases, the pressure also decreases, at this time the main valve disc in the main valve disc spring force push up and down, so that the gap between the main valve disc and the main seat decreases, the media flow also decreases, so that the valve after pressure The force also drops to the new balance, on the contrary, when the pressure after the valve is lower than the setting pressure, the gap between the main valve disc and the main seat increases, the medium flow rate also increases, so that the pressure after the valve also increases to reach the new balance.