NPT
43
43
61
45
7,5
52,5
28
3/8-18
NPT
53
53
73
47,5
10
57,5
38
3/8-18
NPT
Subject to technical alterations!
10.2.3 Removal of mechanical seal
For that purpose use the appropriate sectional drawing and the enclosed data sheet of the mechanical
seal.
•
Remove and disassemble the pump acc. to the Installation, Operation and Maintenance Instruc-
tions including
7.1.11 Remove the Shaft Sealing on page 36
•
Remove fixing ring (527) (if existing) and rotating part of the mechanical seal (433) from shaft (210).
•
Refer to the enclosed data sheet of the mechanical seal, if set screws are to be loosened at the
mechanical seal at first.
•
Remove casing cover (161) together with quench cover (471Q). Use hexagonal screws (901.42) as
jack screws.
•
Pull stationary part of the mechanical seal (433) and throttle bush (542.31) out of quench cover
(471Q).
•
Clean drilling for stationary seal ring (
∅
d
7
) in the quench cover (471Q) and surface of the shaft
(210).
NOTICE:
The reuse of mechanical seals, which have already been used for a longer time, can lead to
leaking at the seal faces after re-installation. Therefore the replacement of the mechanical seal
through a new one is recommended. The dismounted mechanical seal can be reconditioned by
the manufacturer and serve as a replacement mechanical seal.
10.2.4 Installation of mechanical seal
For that purpose use the appropriate sectional drawing and the enclosed data sheet of the mechanical
seal.
It is only allowed to install mechanical seals, which have a certificate of Conformity acc. the Directive
94/9/EC.
On changing the mechanical seal type resp. the mechanical seal manufacturer the data regarding max.
operating temperature of the pumped medium and temperature class must be checked again.
NOTICE:
Pay attention to the utmost cleanness! Especially the seal faces must be clean, dry and un-
damaged. Don´t apply lubrication on the seal faces of the mechanical seal.
•
If a lubricant is provided with the replacement mechanical seal, you should use this.
NOTICE:
Use mineral grease or oil only, if you are completely sure that the elastomers of the mechanical
seal are oil resistant. Use no silicone.
10.2 Single mechanical seal with quench without shaft sleeve (Design code S4..2)
ICB Installation, Operation and Maintenance Instruction
53
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