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Home » Products » Lubricants and Coolants
Lubricants and Coolants

Diester Based Fluids
PAO Synthetic Hydrocarbon Oils
PAOs (H-2)
Food Grade (H-1)
PG - Polyglycol Coolants for Rotary Screw Compressors
PSI NP Mineral Oils
PSI ATF Rotary Fluid
Compressor Oil Cross Reference Chart

Diester Based Fluids

History is behind diesters. More air compressors today run on diesters than any other synthetic. Built-in detergency results in longer lasting parts; reduces or eliminates oil separator varnishing and plugging and sticking valves. The SX32, SX46, and SX68 are formulated for long life in rotary screw type compressors. SX46 is designed for cold temperature use where compressors are exposed to ambient temperatures below 30F. SX100 and SX150 are formulated for upper cylinder and crankcase lubrication of reciprocating units. SX100 is ideal for use in sliding vane units as well.

PAO Synthetic Hydrocarbon Oils

PSI's six synthetic hydrocarbon compressor oils are PX32, PX46, PX68, PX100, FG32 and FG46. Although the diester-based oils have a long history of successful applications in this area, the PAO (polyalphaolefin) based oils are gaining wide acceptance due primarily to the compatibility of these oils with paints, seals, and elastomers.

PAOs (H-2)

  • PAO based compressor oils, unlike esters, are compatible with a wide variety of paints, elastomers, and seals.
  • Use where maximum plastic compatibility is required such as plastic airstream piping or separator bowls.

Food Grade (H-1)

  • USDA H-1 FG32 and FG46 are authorized for use in meat and poultry processing plants where incidental contact with food may occur.
  • Meets all requirements under FDA Regulation 21 CFR 172.878 and 178.3570
  • Non-detergent

PG - Polyglycol Coolants for Rotary Screw Compressors

Unlike many other rotary screw synthetic compressor oils these lubricants have been developed from a unique blend of polyglycol and esters which together form an exceptional coolant and act to reduce oxidation and deposit formation. PG2000 and PG3200 will actually act as a detergent and clean and dissolve residual petroleum product deposits. This in effect, eliminates the maintenance you would expect on a varnished-up compressor. These oils offer excellent heat transfer properties, long life, high flash points, low evaporation, low volatility, and excellent hydrolytic stability.
  • Fully 100% synthetic
  • Polyglycol and ester blend
  • Wide temperature range
  • Extended oil change intervals
  • Eliminates deposit formation
  • High flash points mean reduced fire hazards
  • Waste disposal is minimized due to longer life
  • Cost effective
  • Two viscosity grades to choose from
  • Eliminate seasonal oil changes

PSI NP Mineral Oils

PSI NP Oils are premium compressor lubricants formulated to protect against rust and oxidation. They offer long service life and protect against sludge and varnish formation, even at high operating temperatures. They also separate readily from water. PSI NP Oils possess high natural viscosity indices from the quality paraffinic base oils from which they are blended. This prevents them from thinning out excessively at high temperatures and from becoming overly thick at low temperatures. The inherent oxidation resistance of paraffinic oils, combined with special inhibitors, provide excellent thermal stability.
  • Protects against rust and corrosion
  • Resists oxidation
  • Excellent thermal stability
  • High natural viscosity index
  • Good demulsibilty
  • Can be used in a wide variety of applications
  • USDA category H-2

PSI ATF Rotary Fluid

PSI ATF is a new generation petroleum based fluid which provides superior wear protection. To meet specific compressor lubrication demands PSI ATF includes a "new generation" complex additive system. Specially selected friction modifiers allow friction retention for long life performance necessary to meet compressor requirements.
  • Excellent friction, oxidation and thermal stability
  • Outstanding anti-wear performance
  • Improved hydrolytic stability
  • Better cold flow properties than SAE 10W motor oil
  • Protects components from harmful attack by corrosive acids
  • Excellent compatibility with seal materials
  • Year round performance
  • Assures long equipment life
  • USDA H-2 listed
Compressor Oil Cross Reference as Marketed by Compressor Manufacturers
Click here to see the Compressor Oil Cross Reference chart.

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