Laminar diaphragm-type control valves for pressure reducing applications (PRV) automatically reduce a higher or unstable inlet pressure to a lower, desired outlet pressure. The outlet pressure remains constant, regardless of fluctuations in flow rate or pressure in the inlet side.
The main control valve is pilot operated, also it can be turned into 3-way solenoid operated Pressure Reducing Valve, activated by an electric current or an electric charge to open or close the main valve. The standard valve is provided with “normally closed” solenoid valve. A “normally open” solenoid valve is optional. Which will make it electrically operated control valve. Or it can be provided with 3-way relay valve, activated by pneumatic pressure command to open or close the main valve so it becomes a pneumatically operated control valve.