Y13H female screw connecting adjustable pressure reducing valve for steam- piloted piston type pressure reducing valve

Structure:
The Tianjin U-ideal Instrument supplied pressure reducing valve belongs to the piloted piston type pressure reducing valve which Consists of main valve and pilot valve two parts. The main valve is mainly composed of valve seat, main valve, piston, cylinder liner, spring and other parts. Pilot valve is mainly composed of the seat, disc, diaphragm, spring, adjusting spring and other parts.

Set the downstream pressure by adjusting the spring pressure. The diaphragm senses the outlet pressure changes. Through pilot valve adjustment, the reducing valve keeps downstream pressure constant by reducing it to desired pressure, the desired pressure can be set according to the needs. The downstream pressure keeps constant and won't change by the upstream pressure changing or upstream flow rate changing. Mainly used for steam piping, as pressure reducing and sustaining valve.

Reducing valve; Pressure reducing and sustaining valve
Definition:
The pressure reducing valve is a pressure control valve which with throttle method make the outlet (downstream) pressure lower than the inlet (upstream) pressure, and keep the downstream pressure constant by reducing it to desired pressure, the desired pressure can be set according to the needs. The downstream pressure keeps constant and won't change by the upstream pressure changing or upstream flow rate changing.

Analyses them from the fluid mechanics point, the pressure reducing valve is a throttling element which local resistance is changeable. The reducing valve by changing the throttling area, change the kinetic energy of the flow velocity and fluid, produced different pressure loss, so as to achieve the goal of reducing pressure. And then through the adjustment of the control and regulation system, make the valve downstream pressure fluctuations and spring force keep equilibrium, the valve downstream pressure keep constant (no change or change within the error tolerances).

Tianjin U-ideal Instrument Co. Have Many different kinds of pressure reducing valve, such as: The piloted piston type pressure reducing valve, diaphragm pressure reducing valve, bellows type pressure reducing valve, proportional pressure reducing valve, self-reliance type pressure reducing valve, direct acting piston type pressure reducing valve, back pressure regulator, etc. They apply respectively to different working medium.