10
Pressure Management Application Settings
BERMAD’s pilot switch pressure management application is
based on a series 700 control valve equipped with two pressure
reducing pilots: one for high pressure setting and the other for low
pressure setting. Normally the
high pressure
pilot controls the
valve, while the low pressure pilot is on standby mode. A Subtv
controller with a DC solenoid can switch the high pressure pilot
with the low pressure pilot according to a pre defined time based
operation regime.
Such arrangement can switch the system to
low pressure
settings during night, while maintaining high pressure during
day time.
The system is also equipped with a high flow switch that can stop
the low pressure regime when higher demand for water is
detected, such as in case of fire.
The following chapter describes the programming steps required
for setting-up this application:
Programming a Pressure Management Application
The
Subtv
operation programs consist of three parameters
per each valve program: Operation Time or Volume, Operation
Days, and Start Time.
For controlling BERMAD’s Pressure Management Application
the controller is supplied with a single solenoid (valve), operated
by time with up to three start times a day, and with a flow switch.
In municipal water systems the demand for water in residential
neighborhoods is high during the mornings and evenings and low
during the night and mid day hours; therefore, the control valve
is set for the high pressure during high demand hours.
