7 Servicing/Maintenance
46 of 82
Amarex
2573.820/02-EN
7.2.2.1.2 Lubricant quality
DANGER
Wrong quality of lubricating liquid
Explosion hazard!
▷ Always use a lubricating liquid whose ignition temperature is higher than
185°C for explosion-proof pump sets.
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:
Table20: Oil quality
Description Properties
Paraffin oil or white oil
Alternative: motor oil
grades SAE 10W to SAE
20W
Kinematic viscosity at 40°C <20 mm²/s
Ignition temperature >185°C
Flash point (to Cleveland) +160 °C
Solidification point (pour point) -15 °C
Recommended oil types: ▪ Merkur WOP 40 PB, made by SASOL
▪ Merkur white oil Pharma 40, made by DEA
▪ Thin-bodied paraffin oil No. 7174, made by Merck
▪ Thin-bodied paraffin oil, type Clarex OM, made by HAFA
▪ 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.
7.2.2.1.3 Lubricant quantity
Table21: Lubricant quantity depending on the motor
Motor version Efficiency class Number of poles Lubricant quantity
[l]
012 C 2 0,73
014 C 2 0,73
017 F 4 0,73
018 C 2 0,73
023 F 2 0,73
023 F 4 0,73
024 F 2 0,73
029 C 2 0,73
040 F 2 0,73
021 C 4 1,05
035 C 2 1,05
035 F 4 1,05
036 C 4 1,05
042 C 2 1,05
042 F 4 1,05
045 C 4 1,05