Watson-Marlow SP40 - Manual (Page 58)

TROUBLESHOOTING
55
Short hose life. Chemical attack 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 pump speed. Reduce pump speed.
High discharge pressures. Maximum working
pressure 16 bar. Check
that the discharge line is
not blocked, the shut-off
valves are fully opened
and the pressure relief
valve functions properly (if
present in the discharge
line).
High product temperature. Consult your Bredel
representative for correct
hose selection.
High pulsations. Restructure the discharge
and inlet conditions.
Hose pulled into the
pump. Insufficient or no hose
lubricant in the pumphead. Add extra lubricant, refer to
section 7.3.
No original Bredel
lubricant. Consult the Bredel
representative for the
correct lubricant.
Extremely high inlet
pressure - larger than
300 kPa. Reduce the inlet pressure.
Problem Possible cause Correction