Instruction manual CT centrifugal pumps
16
3.
MAINTENANCE
3.5
Lubricated seal
A great option where there is a potential risk of dry running, or where the product tends to solidify or crystallize. An
oil chamber is connected to the mechanical seal chamber.
T
he pump is delivered without lube medium in oil chamber!
- Before the first start fill up the oil chamber with proper medium (i.e. SAE 20 oil). In case the
pumped medium can’t be contaminated by oil, you should use a lubricating medium compatible
with pumped medium.
- Medium in the oil chamber should be also compatible with materials that the pump is made
of (when using oil as buffering liquid you should not use EPDM O-rings in mechanical seal)
- NBR lip seal is a standard (other materials are available upon request).
- Oil chamber should be filled up to ¾ of oil cup height.
- You should change oil after 2000 hours of operation or once a year.
Important!
- If mechanical seal damage will occur, fluid level in the chamber will increase and then it will
spill out of the oil cup. You must stop the pump immediately to replace mechanical seal!
- If oil level in oil cup will start decreasing in short period of time, probably lip seal is damaged.
You should stop the pump and replace damaged lip seal.
Additional parts:
!
Pos
Description
114
Pump back cover for lubricated seal
126
Pump back casing with welded seal chamber
159
Lip seal (for 4Z pump configuration)
16Z
Shaft for pump with lubricated seal
16WZ
Shaft – reinforced version for pump with lubricated seal
62
Oil reservoir for seal
Fig. 21.
Changes reserved without notice
