Page 13
Flex-Pro
13.0 Reverse Rotor Rotation
Increase tube life with this feature!
!
CAUTION
Prior to service, pump clean water through the pump and suction / discharge line to
remove chemical.
Always wear protective clothing, face shield, safety glasses and gloves when working on
or near your metering pump. Additional precautions should be taken depending on
solution being pumped. Refer to MSDS precautions from your solution supplier.
!
CAUTION
Pump rotor can reverse rotation by pressing REVERSE ROTATION button. This process can be used for many
reasons throughout various industries.
Two reasons for reversing current rotor rotation; to purge chemical from tubing and to extend tube life.
Plan ahead before reversing rotor rotation. If checkvalves are installed, make necessary arrangements to allow
back flow.
If your desire is to simply extend tube life:
Typically tubing fails on outlet side (pressure side) of tube assembly in pump head.
Failure to install checkvalves in their proper flow direction can cause excess pressure
(PSIg) build up in system and can result in tube rupture.
Always use extreme caution and ensure proper connections when using this feature.
!
CAUTION
Swap Inlet
and Outlet
ON
R
T
F
Reversing rotation, moves outlet side (pressure side) to
opposite side of tube assembly, greatly increasing tube life.
Stop pump before tube failure occurs.
Disconnect power from pump. Carefully purge any pressure
in discharge line of pump. Disconnect suction end tubing and
discharge end tubing from pump head tubing.
IMPORTANT! Swap sides of suction (inlet) and discharge
(outlet) tubing. No need to remove Pump Head Cover.
Double check all connections before starting pump.
ON
R
T
F
Outlet
Inlet
Di
n re
o
i
c
t
t
a
i
t
o
o
n
R
Typical Failure Point
(pressure side)
!
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