18
A comparison table is provided between the classification of NLGI lubricants (National
Lubricating Grease Institute) and the ASTM classification (American Society for Testing and
Materials) for greases for the values that concern the pump.
For further information about the technical specifications and the safety measures to adopt,
refer to the product safety sheet (Directive 93/112/EEC) relative to the type of lubricant
selected and supplied by the manufacturer.
15. GUIDELINES FOR USE
Compliance with the essential safety requirements and the provisions specified in the machine directive was checked by filling
out prepared check lists that are contained in the technical file.
Two types of lists were used:
•
Risk assessment (UNI EN ISO 14121-1).
•
Compliance with the essential safety requirements Machine Directive –EC 06/42).
The risks that were not completely eliminated, but considered acceptable, are specified below:
•
Electrocution: this can only occur in the case of serious user incompetence.
•
Use of unsuitable lubricant: the types of fluids that are not compatible with correct pump operation are listed below. *
•
Contact with harmful fluids.
FLUIDS THAT ARE NOT PERMITTED
FLUIDS
RISKS
Lubricants with abrasive additives
wear of the components inside the pump
Lubricants with silicone additives
Pump seizure
Petrol – solvents – inflammable liquids
Fire – explosion – damage to the gaskets
Corrosive products
Pump corrosion - damage to people
Water
Pump oxidation
Food substances
They would be contaminated
* For more detailed information regarding product compatibility with particular fluids, contact the Dropsa S.p.A. technical office
GREASES
NLGI
ASTM
000
445 – 475
00
400 – 430
0
355 – 385
1
310 – 340
2
265 – 295
