Levitronix BPS-2000.1 User Manual page 42

8. Press the lid with the O-ring flush into the
bottom of the pump casing.
CAUTION
Do not use the pump head screws to press the lid
into the pump housing bottom. This might lead to
distortions, which affect the sealing and hydraulic
performance.
9. Check if the screw holes of the PP reinforcing
lid are properly aligned with the thread holes of
the PP reinforcing base and that the arrow of
the PP lid is showing to the outlet.
PP lid holes
aligned with thread
holes of PP base
PL-4021-00, Rev03, DCO# 15-235
Arrow shows to
outlet
PFA lid pin
fits into PP lid hole
10. Carefully tighten the 8 pump housing screws
by following two times the sequence in the
figure below with increasing torque after each
sequence. The screws should not be used to
press the lid with the O-ring into the bottom of
the pump casing.
1
8
4
6
Do not apply too much torque. The final torque on
the screws should be
Recommended torque SS screws M8: 60 Ncm
Note: These are typical values for the standard pump heads
LPP-2000.6. Refer to the relevant pump head specification
drawings for other configurations, which may have different
values.
11. Check if the gap between the PP lid and the
PP base is uniformly distributed around the
circumference and < 1mm. If that is not the
case repeat step 10.
12. Start up the system and check if the impeller is
rotating properly and the pump head doesn't
leak.
13. If the pump head leaks make sure the lid and
the O-Ring are properly pressed into the
bottom of the pump casing. It may be
necessary to change the O-Ring if it has been
damaged.
User Manual for BPS-2000
www.levitronix.com
5
3
7
2
Uniform gap of ~ 1mm
between PP lid and PP base.
42