17
7 TROUBLESHOOTING
If the pulsation damper does not function (correctly), consult the following checklist to see if you can
remedy the problem yourself. If you cannot, please contact your Bredel representative.
Problem
Possible cause
Solution
(Heavy) vibration of
Pump, Pulsation
damper or pipework
Pressure inside vessel
too low
Pressurize the vessel of pulsation
damper again according
paragraph
5.5 Setting the pulsation damper pressure
level for operation
Pressure inside vessel
too high
Product leakage
Not all parts have been
greased properly.
Grease all necessary parts. See also
paragraph
Pressure loss at
pulsation damper
housing
Damaged O-ring (pos.
4 or 5)
Replace the O-ring concerned.
Pressing ring (pos. 7)
incorrectly mounted
Tighten to the specified torque settings
(see paragraph
)
Short pulsation
damper hose life
Chemical corrosion of
the hose
Check the compatibility of the hose
material with the product to be pumped.
Consult your Bredel representative for
correct hose selection.
High discharge
pressures
Maximum operating pressure is 1600 kPa.
Check whether the discharge line is
blocked. Make sure the shut-off valves are
fully opened and the pressure-relief valve
(if present) in the discharge line is
functioning properly.
High product
temperature
Consult your Bredel representative for
correct pulsation damper hose selection.
High pulsations
Restructure the discharge and inlet
conditions.
