Valve type: V230 seriesImported self operated pressure regulating valve
Caliber range: DN15 to DN400
Pressure range: PN16 to PN100, ANSI 150 to ANSI600
Temperature range: -40 to+350t
Leakage level: ANSI B16.104 IV, ANSI B16.104 VI
Main materials: WCB, WC6, WC9, CF8, CF8M, etc
Drive device: automatic

Self operated pressure regulating valve is a new type of regulating valve. Compared to manual regulating valves, its advantage is the ability to automatically adjust; Compared to electric control valves, its advantage is that it does not require external power. Practical application has proven that in closed water circulation systems such as hot water heating systems and air conditioning chilled water systems, the correct use of this valve can easily achieve flow distribution in the system; Can achieve dynamic balance of the system; It can greatly simplify the debugging work of the system; Can stabilize the working state of the pump, etc.

Working principle
The pre valve pressure P1 of the process medium is throttled by the valve core and seat to become the post valve pressure P2. At the same time, P2 is input into the upper diaphragm chamber of the actuator through the control pipe and acts on the top plate. The force generated is balanced with the reaction force of the spring, which determines the valve core. The relative position of the valve seat controls the pressure behind the valve. When the pressure P2 behind the valve increases, the force exerted by P2 on the top plate also increases. At this point, the force on the top plate is greater than the reaction force of the spring, causing the valve core to move towards the valve seat until the force on the top plate is balanced with the reaction force of the spring. At this point, the flow area between the valve core and the valve seat decreases, the flow resistance increases, and P2 decreases to the set value. Similarly, when the pressure P2 behind the valve decreases, the direction of action is opposite to the above, which is the working principle of pressure regulation behind the valve. When it is necessary to change the set value of the pre valve pressure P2, the adjusting nut can be adjusted.

Self regulating valve classification, please click here