Pomac Pumps PLP - Alignment Tolerances; Fitting Additional Connections

User manual Pomac PLP Lobe pump
CE/PLP (1406) EN-12 19
4.11. Alignment tolerances
The following table with its corresponding figure shows the tolerance limits for aligning the
coupling.
A
E
Coupling outer
diameter [mm]
A must be between
[mm]
Max difference
between A max and
A min [mm]
E must be between
[mm]
81-95
2 - 4
0,15
0 - 0,15
96-110
2 - 4
0,18
0 - 0,18
111-130
2 - 4
0,21
0 - 0,21
131-140
2 - 4
0,24
0 - 0,24
141-160
2 - 6
0,27
0 - 0,27
161-180
2 - 6
0,30
0 - 0,30
181-200
2 - 6
0,34
0 - 0,34
201-225
2 - 6
0,38
0 - 0,38
4.12. Fitting additional connections
Ensure the engine cannot be started when work is performed to the pump-unit and the
rotating parts are not completely covered!
! Ensure that the whole system is thoroughly flushed and cleaned. The whole system must
be free from debris and particles, because they could get into the pump and cause
serious damage to rotors and rotor case!
! A pump which is NOT equipped with a QUENCHED shaft seal (see type description), may
NEVER be installed in a position where it possibly could run DRY!