Castrol Aircol PD 150

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 lubricant drain cycles of up to 2000 hours under normal use. Normal use in screw type compressors is defined by a maximum air discharge temperature =/< 100°C as defined by ISO 6743-3:2003

Aircol PD can be used for either normal or severe duty lubrication of reciprocating and rotary drip-feed air compressors, as defined by ISO 6743. Normal duty is described as:-

• discharge temperatures =/< 165°C
• differential pressures =/< 2.5 MPa (25 bar)
• discharge pressures =/< 7.0 MPa (70 bar).

Severe Duty is described as:-

• discharge temperatures > 165°C
• differential pressures > 2.5 MPa (25 bar)
• discharge pressures > 7.0 MPa (70 bar)

Aircol PD compressor oils exhibit low carbon forming tendencies and meet the requirements of the DIN 51506 VDL classification for reciprocating compressors having air discharge temperatures up to 220°C. Selection of the required viscosity grade should be based upon the compressor manufacturers’ recommendation. However as a general guide Aircol PD 32 and 46 are suitable for oil flooded rotary compressors, whereas Aircol PD 68 and 100 would be selected for lubricating the crankcase and cylinders of reciprocating compressors. Aircol PD 150 is recommended for sliding-vane compressors, or for reciprocating units at high ambient temperatures. The Aircol PD range is fully compatible with nitrile, silicone and fluropolymer seal materials.

Aircol PD is classified as follows:

• DIN 51506 classification - VDL
• ISO 6743/3 - DAA and DAB for reciprocating air compressors, DAG for rotary air compressors

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.

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