SRV is installed in the bypass line
pipe to protect the piping system from the surge(Water hammer) by
sudden flow change and pump sudden stop.
Model SRV-PDA consists of a main valve, solenoid valve, air set,
completely assembled and tested as a unit and ready for field
installation. Main Valve is closed tightly when normal operation
is in state. When a exceed pressure in piping system is occurred,
surge command from pressure transmitter operates the solenoid
valve, and main valve is open for protect the surge (Water
hammer). Its fully opening time is less than **0 millisecond.
**benefits**
Adjustable Opening and Closing Times
In particular, fully opening time is less than **0
millisecond.
Open and close time of SRV depends on field site.
Quick open time and slight close time are adjustable.
Accurate and Precise Pressure Control Main valve of pressure
control is provided by accurate and precise pressure of pneumatic
solenoid valve.
Normal Open / Normal Close Selectable
SRV consists of solenoid valve and air receiver tank (optional)
and air set, it enables Normal Open or Normal Close of main
valve.
