25P Series Spark Steam Pressure Reducing Valve

Technical Parameter

Applicable pressure: PN16, PN40

Nominal diameter: DN15-150

Applicable temperature: cast iron 232 ℃, cast steel 232 ℃

Connection method: threaded port, flange

Shell material: cast steel

Applicable media: gas, liquid, steam

Operation mode: automatic

The 25P series Spark steam pressure reducing valve is widely used in steam systems. Regardless of changes in upstream steam pressure or fluctuations in downstream load, the pressure reducing valve can achieve precise and stable pressure control.

A characteristic of the 25P series Spisak steam pressure reducing valve is the ability to install or exchange one or more pilot valves on the same valve body. While stabilizing pressure reduction, it can achieve temperature control, upstream pressure control, or remote switch control. These steam pressure reducing valves with varying functions can be provided at the time of supply or simply assembled on site.

When the pilot valve spring is in a free state before the start of the Sparak steam pressure reducing valve, the main valve and pilot valve are in a closed state. The pilot valve is opened by spring force, and steam enters the main diaphragm chamber of the pressure reducing valve through the pilot valve. A portion of the steam flows out through the control hole. When the steam inflow from the pilot valve is greater than the steam outflow from the control hole, the control pressure in the main diaphragm chamber of the pressure reducing valve increases, and the main valve is opened. As steam flows through the main valve, the increase in downstream pressure is fed back through the sensing tube and acts under the diaphragm of the pilot valve, balancing the spring pressure on the upper part of the diaphragm, causing the pressure reducing valve pilot valve to gradually close and throttle, maintaining the pressure in the main diaphragm chamber, and controlling the opening of the main valve to deliver an appropriate amount of steam. Adjusting the spring on the pilot valve diaphragm can change the downstream pressure.