Amarex KRT series - Lubrication and Lubricant Change

7 Servicing/Maintenance
65 of 124
Amarex KRT
7.2.3 Lubrication and lubricant change
7.2.3.1 Lubricating the mechanical seal (pump sets without cooling system only —
installation type S)
7.2.3.1.1 Intervals
Replace the lubricant every 8000 operating hours but at least every 2 years.
7.2.3.1.2 Lubricant quality
The lubricant chamber 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:
Table36: Lubricant quality
Description Properties
Paraffin oil
or
white oil.
Alternative: motor oil
grades SAE10W to
SAE20W
Kinematic viscosity
at 104°F [40°C]
< 0.065ft/s
2
[<20mm/s
2
]
Flash point (to Cleveland) > 320°F [>160°C]
Solidification point (pour point) < -5°F [< -15°C]
Recommended lubricants: ▪ 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
Contamination of fluid handled by lubricant
Hazard to persons and the environment!
▷ Using machine oil is only permitted if the oil is disposed of properly.
7.2.3.1.3 Lubricant quantity
Table37: Lubricant quantity depending on the motor
Size Motor
5306
5806
6306
4608
5308
5808
39010
43010
47510
34012
38012
6906
7706
8506
6308
6908
7608
53510
60010
66010
45012
49012
56012
Lubricant quantity
[quart] [l] [quart] [l]
200-631 5,7 5,4 4,8 4,5
250-630 5,7 5,4 4,8 4,5
250-632 5,7 5,4 4,8 4,5
250-900 5,7 5,4 4,8 4,5