Realax ISI 10, Operating Instructions Manual

Page: 32 / 60

32
Operating instructions Peristaltic Pump ISI Series
10 TROUbLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Increased
pump
temperature
Pump hose has no lubricant Lubricate pump hose
Increased product temperature Reduce product temperature
Insufficient or poor suction
conditions
Check suction line condition
Pump speed too high Reduce pump speed
Reduced flow
or pressure
Valves on discharge and or
suction side completely or
partially closed
Open valves
Pump hose insufficiently
compressed
Check number of shims
Pump hose rupture (the product
leaks out into the housing) Exchange pump hose and clean
pump
Partial blockage of the suction
line
Clean pipe
Insufficient product quantity in
storage container Fill storage container or exchange
pump
Insufficient diameter on the
suction side Increase the diameter on the
suction side, as far as possible
Suction line too long
Shorten the suction line, as far as
possible
High viscosity of medium Reduce viscosity, as far as possible
Air introduction in the suction
connections Check connections and
accessories for air tightness
High pulsation on suction
Tighten connections and
accessories Mount anti-pulsation
equipment Reconsider application
(speed, etc.)
Vibrations on
pumps and
pipelines
The pipes are not correctly
fastened Fasten pipes correctly (e.g. wall
brackets)
Pump speed too high Reduce pump speed
Insufficient nominal width of the
pipes
Increase nominal width
Pump base plate loose Fasten base plate
Pulsation dampers insufficient or
missing Install pulsation dampers on
suction and / or discharge side