07/03
Hy~Line and Ultima Lobe Pumps
If the lobe pump is fitted with single
silicon carbide/silicon carbide seals
(Code 2) it must not be rotated
during hold time as the seal faces
can bind together.
5. At the end of hold time, pump must
be allowed to cool naturally or can be
purged with sterile air/inert gas.
Pump must not be rotated during
cooling.
6. Do not allow cool liquid to enter the
lobe pump before pump temperature
has fallen to 60°C (140°F) or lower.
If the pump is fitted with silicon
carbide/silicon carbide seals (Code 1, 2 or
7), flood it with liquid to lubricate the seals
before rotating it.
6. INSPECTION AND REPAIR
Hy~Line and Ultima pumps need no
adjustment during normal operation. It is
advisable though to check oil levels and
inspect pump head components (especially
seals and joints) periodically so that they
may be cleaned or replaced before they fail
in service.
All primary fluid contact components of the
pump can be inspected and serviced without
removing the pump rotor case from the
bearing carrier and without removing either
the pump or drive unit from the baseplate,
as follows:-
For your safety:
Before commencing any repair or
inspection, isolate power to pump
and drive motor, depressurise, drain
and isolated pipework, seal flush and
temperature control jackets (if fitted).
6.01 END COVER
(see figures 10, 10a, 10b and 10c)
Removal
Before removing the end cover (122),
ensure the pump & drive are isolated, the
pump is cool enough to safely touch,
drained of any fluids (take special care with
hazardous fluids) and ensure that pump,
seal flushing system and jackets are
isolated and depressurised.
If end cover is fitted with a pressure relief
valve refer to the relevant section 2.13. Then
proceed as follows:-
Page 21
Figure 10
Hy~line End Cover
Figure 10a
Ultima End Cover
Figure 10b Ultima
Barrier End Cover
Figure 10c End Cover
Joint Ring
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