Operation - ProMinent 987629 Instrucciones De Servicio

ProMinent ®
5

Operation

IMPORTANT
• The bypass line must always be connected since minimum
overflow into the bypass line can occur during operation of
the valve close to the pressure relief function.
• Multi-function valves are not intended to act as fully sealing
stop taps!
Operation and Setting
Intake Aid
Turn the red rotary knob (2) in the direction of the arrow (clockwise)
to open the way to the bypass. The medium flows back into the
supply tank.
NOTE
• In this case, the delivery line is partly depressurized and
liquid can flow out of the bypass.
The ProMinent metering pump must now be set to "intake" (refer to
pump operating instructions) until liquid can be seen in the bypass
line.
The pump is now primed and ready for use. After being released,
the red rotary knob (2) reverts of its own accord back to its initial
position.
Depressurizing the Delivery Line
The passage from the delivery line to the bypass is cleared by
turning the red rotary knob (2) and the black rotary knob (1). The
pressure drops in the line to approx. 1.5 bar if only the red rotary
knob (2) is turned.
Both knobs must remain unscrewed until no more liquid flows out
of the bypass line or no more liquid flows back into the supply
tank. The metering line is now depressurized. Once released, both
rotary knobs turn of their own accord back to their initial position.
Operation
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