Description
The Castrol Aircol PD range of compressor lubricants are based upon highly refined mineral oils and carefully chosen additives. They are intended for the lubrication of both reciprocating and rotary air compressors.
Application
- The Castrol Aircol PD grades are ashless oils recommended for the lubrication of rotors, bearings and gears in rotary compressors, especially the oil flooded screw type with delivery temperatures of up to 120°C.
- The Castrol Aircol PD compressor oils exhibit low carbon forming tendencies and meet the requirements of the DIN 51506 VD-L classification for reciprocating compressors having air discharge temperatures up to 220ºC.
- Selection of the required viscosity grade should be based upon the compressor manufacturers’ recommendation, however as a general guide Castrol Aircol PD 32 and 46 are suitable for oil flooded rotary compressors, whilst Aircol PD 68 and 100 would be selected for lubricating the crankcase and cylinders of reciprocating compressors. Castrol Aircol PD 150 is recommended for sliding vane compressors, or for reciprocating units operating at high ambient temperatures.
- Castrol Aircol PD range is classified as follows: DIN 51506 VD-L. ISO 6743/3 Compressor Oils – DAA and DAB for reciprocating air compressors, DAG for rotary air compressors.
- Castrol Aircol PD meets the requirements (for appropriate viscosity grade) of major compressor manufacturers such as Atlas Copco, Champion, Sullair, Compair/Broomwade, Ingersoll-Rand, Kaeser and Bauer.
Features and Benefits
Excellent water separation characteristics which allow condensation to readily separate from the oil, minimising the risk of emulsions which could block the oil separator element.
Fully inhibited against corrosion which enables protection even when operating under humid conditions.
Good thermal stability, low volatility and low carbon formation reduces the risk of fire and explosion and leads to longer operating life (up to 2000 hours).
Low deposit forming tendencies extends oil change intervals and provides longer air filter life which contributes to a reduction in maintenance costs.
Excellent coalescing properties mean little carry over of oil in the air stream.
Technical Data
|
Name |
Method |
Units |
Aircol
PD 32 |
Aircol
PD 46 |
Aircol
PD 68 |
Aircol PD
100 |
Aircol PD
150 |
|
Relative Density at 15°C |
ASTM D4052 / ISO 12185 |
g/ml |
0.874 |
0.876 |
0.881 |
0.885 |
0.887 |
|
Kinematic Viscosity at 40°C |
ASTM D445 / ISO 3104 | mm²/
s |
32 |
46 |
68 |
100 |
150 |
| Kinematic Viscosity at
100°C |
ASTM D445 / ISO 3104 | mm²/
s |
5.57 |
6.67 |
8.57 |
11.4 |
14.5 |
|
Viscosity Index |
ASTM D2270 / ISO 2909 |
110 |
100 |
100 |
98 |
98 |
|
|
Foam Sequence I |
ASTM D892 / ISO 6247 |
ml/ml |
30/0 |
30/0 |
30/0 |
30/0 |
30/0 |
|
Open Flash Point |
ASTM D92 / ISO 2592 |
°C/°F |
226/439 |
232/450 |
232/450 |
253/487 |
256/493 |
|
Pour Point |
ASTM D97 / ISO 3016 |
°C/°F |
-21/-6 |
-21/-6 |
-21/-6 |
-12/10 |
-9/16 |
|
Demulsification at 54°C |
ASTM D1401 / ISO 6614 |
mins |
15 |
15 |
15 |
– |
– |
|
Demulsification at 82°C |
ASTM D1401 / ISO 6614 |
mins |
– |
– |
– |
20 |
20 |
| Rust Test, Procedure B | ASTM D665B | – | Pass | Pass | Pass | Pass | Pass |
| Conradson Carbon
Residue Oxidation Test |
DIN 51352-2 |
% wt |
0.7 |
0.7 |
0.7 |
< 3 |
< 3 |
The above figures are typical of those obtained with normal production tolerance and do not constitute a specification.