The Quick Pressure Relief Control Valve is the safety control valve designed to protect system by releasing pressure surges to atmosphere quickly caused from sudden changes in water speed because pumps put into/out of service frequently in water network elevation lines. When network pressure goes beyond set point, valve opens by itself quickly and protects system by releasing over pressure. When line pressure decreases to normal level, it is closed slowly and automatically as wholly sealed without causing surge.
Existing Diameters According To Their Connections
- Flanged: DN80, DN100
- Angled : 2″, 3″
- Threaded: 3/4″, 1″, 1½”, 2″, 2½”, 3R, 3″ , 4″
It is a fully automatic hydraulic control valve designed to perform the hydraulically desired modulation processes with the line pressure without the need for different energy sources such as electricity, pneumatic or mechanical in the main valve mains line
Valve Closing Mode
Pilot valves connected to the main valve create a hydraulic force on the valve diaphragm when the water pressure at the valve inlet reaches the actuator actuator (control reservoir) of the valve. This hydraulic force that is created combines the diaphragm of the valve with the extra force exerted by the internal spring to ensure a tight seal.
Valve Opening Mode
When the path of the pilot valve on the main valve in the closed position is set to the discharge position, the pressurized water in the control chamber on the diaphragm of the main valve is discharged. When the line pressure reaches the spring force, the valve diaphragm applies a hydraulic force to the diaphragm to bring the valve into the full open position.
Modulation Mode
The pilot valves that connect the actuator to the main valve allow the main valve to operate in the modulated position. The valve in the actuator of the main valve (control reservoir), according to the flow quantity or pressure conditions to be adjusted, ensures that the fluid continuously operates in the modulated position by controlling the pressure.
- Easy operation and maintenance with simple structure
- Low cost
- Working at wide pressure value range
- Perfect modulation even at low flow rates
- Continuous on / off with flexible aperture
- Full seal with reinforced diaphragm and inner spring
- Long life with epoxy-polyester coating
- Wide range of control area with the use of different pilot valves
- Ability to work in horizontal and vertical positions in application areas