Table of Contents
Advertisement
Table 14: Lubricant quality
Description
Paraffin oil or white oil
Alternative: motor oil grades SAE 10W to SAE 20W
Recommended lubricants:
56 of 112
7 Servicing/Maintenance
7.3.6 Visually inspecting for corrosion.
ü The pump set has been removed from the system.
1. Conduct a visual inspection of the pump set.
ð Clearly visible corrosion: Replace defective components and check corrosion
protection.
ð No visible corrosion: Extend visual inspection interval to 12 months.
7.4 Lubrication and lubricant change
7.4.1 Lubricating the mechanical seal
DANGER
Excessive temperatures at the shaft seal
Explosion hazard!
Damage to the pump set!
▷ Regularly check the condition of the lubricant in the lubricant reservoir of the
mechanical seal. Top it up if required.
The mechanical seal is supplied with lubricating liquid from the lubricant reservoir.
7.4.1.1 Intervals
Replace the lubricant every 8000 operating hours but at least every 3 years.
7.4.1.2 Lubricant quality
The lubricant reservoir is filled at the factory with environmentally friendly, non-toxic
lubricant of medicinal quality (unless otherwise specified by the customer).
The following lubricants can be used to lubricate the mechanical seals:
Properties
Kinematic viscosity at 40 °C
Flash point (to Cleveland)
Solidification point (pour point)
▪ Merkur WOP 40 PB, made by SASOL
▪ Merkur white oil Pharma 40, made by DEA
▪ Thin-bodied paraffin oil
– No. 7174, made by Merck
▪ Equivalent brands of medical quality, non-toxic
▪ Water/glycol mixture
WARNING
Lubricant contaminating fluid handled
Hazard to persons and the environment!
▷ Using machine oil is only permitted if the oil is disposed of properly.
Amacan P
< 20 mm
2
/s
> 160 °C
< -15 °C
Advertisement
Table of Contents
