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Air piping
CAUTION
Use the instrument air which is dust free and dehumidified as supply air. If the supply
air contains foreign matters, water, or oil, the pressure adjusting valves may malfunction
and air may leak from the air exhaust port.
(1) Air piping should be connected to the dampener on the discharge tube beyond the pressure reducing
valve.
CAUTION
Pipe diameter must be the same as that of the pump (solenoid valve). If the pipe diam-
eter to the dampener is small, necessary air can not be supplied to the dampener inlet
because of pressure down, which will bring reduction of dampening effect or deforma-
tion of the bellows.
CAUTION
Install a pressure reducing valve for each combination of the pump/dampener. If only a
pressure reducing valve control several combinations of pump/dampener, the pulsation
reduction effect will reduce or the bellows are deformed because of the pressure down
at dampener inlet.
(2) In case that air adjusting valve is installed
If the valve (marked with * on the illustration below) is installed in the air piping for adjusting a stroke
rate of the pump, install it not to interrupt the air supply to the dampener as shown on the illustration
below.
(No good)
Air supply source
Pressure reducing valve
(Good)
To the auto-dampener
*
*
To pump (solenoid valve)
(3) When the pressure reducing valve is installed for the pump and the damper separately.
The set pressure for the damper should be equal to the damper.
