Low level switch contact closes
High level switch is opened and Low level switch is closed. Solenoid valve SO is activated while solenoid valve SC is deactivated.
Water vents from the closing compartment
Low level switch contact stays opened.
High level switch closes. Solenoid valve SC is activated while solenoid valve SO is deactivated Water enters the closing compartment.
Water enters the closing compartment
AREA OF APPLICATIONS
The N.G.D reservoir level control valve controls the water level by opening or closing the valve on low or high level conditions in the reservoir.
The valve can be actuated by the line-fluid pressure or alternatively by compressed air, hydraulically or electrically. The valve is used in: –
- Industrial Water Systems
- Municipal Water Supply Systems
- Pump Stations
- Mine Water Reticulation
- Petro-Chemical Plants
PRINCIPLES OF OPERATION
The N.G.D reservoir level control valve’s actuator is a natural and integrated part of the valve. This type of actuator is ideal for relatively clean line-fluid. The line-fluid pressure actuates the valve and no external power source is required.
The piloting is done by combination of solenoid valves and
suspended type level switches, which are compatible with the line fluid and the system pressure