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LUBRICACION
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Compressors and their Lubrication
POWER POINT TEMPLATE FOR LUBETECH 98
AgendaPetro-Canadas compressor product lineCompressor Lubricant ApplicationTypes of CompressorsSCF benchmarking informationSummary
Compressor Lubrication Petro-Canada Product LineCompressor Oil Super Compressor Fluid Endurance 8000 Purity FG Compressor Lubricant RCF-1000 Compressor Oil RPSPX FluidsNGS 1000Compressor Cleaner
Compressor LubricationApplicationsCompressor Oil, SCF, Endurance 8000, Purity FG Compressor Lubricant and RCF-1000 are used in the compression of:
AirNitrogenCarbon DioxideCarbon MonoxideArgonNeonHeliumBlast furnace gas
Compressor LubricationApplicationsCompressor Oil RP and SPX Fluids are used in the compression of:
Natural GasHydrocarbon gasses such as:MethaneAcetyleneEthanePropaneButaneCoke oven Gases
Types of Compressors
Types of CompressorsThere are 5 major type of compressors
Rotary screw compressorsReciprocating or piston air compressorsRotary vane compressorsLobe-type compressors (Blowers)Centrifugal Compressors
Compressor LubricationViscosity GradesTypical viscosity grade requirements by compressor type or application is as follows:
Rotary screw compressors ISO 32 or 46Reciprocating compressorsISO 68 or 100Rotary Vane compressorsISO 100 or 150Lobe type compressorsISO 46 or 68Centrifugal CompressorsISO 32Compressors used in Natural Gas or Hydrocarbon gasses compression>ISO 150
Rotary Screw Compressors
Typical Oil-Flooded Screw Compressor
Oil System Components
oilgas & oildischargecheckvalvestrainerthermostatCheck valveMedium filterfinefilteroil pumpjournal, seal, slideinjectionpressurecontrolvalvestraineroil coolerinletoil reservoir and separatorflowcontrol valveT Y P I C A L O I L S Y S T E M W I T H P U M P
Function of the Lubricant
Protection fromrust & corrosion
Petro-Canada Compressor OilProvide good lubrication and reliable compressor performance - Mineral oil based performanceLow cost versus syntheticsProvides a solid 2000 hr in rotary screw compressorsZinc free chemistry + HT base oils
Super Compressor FluidsFeatures and BenefitsFor superior performance equal to or better than competitive synthetic products use Super Compressor Fluid
Excellent oxidative and thermal stability - 8000 hours or 1 year service life (ADT < 185F)Lower maintenance, labour and disposal costs because fewer fluid changes are required relative to a mineral oilLess power required to drive rotating parts because fluid does not thicken over its service life
Super Compressor FluidFeatures and BenefitsDoes not deposit harmful sludge and varnish on rotors and separators
Reduces maintenance costs because parts stay cleaner longerAshless formulation is free of toxic heavy metals
Easily disposed of because used fluids are a non-hazardous waste and are readily accepted by oil recycling companies
Super Compressor FluidFeatures and BenefitsLow vapor pressure and volatility reduces oil carry over and oil make-up costsSuperior rust and corrosion inhibitors protects compressors in intermittent service from humidity damageLow odour and chemical inertness eliminate unpleasant smells and damage to paint work, a common problem with diester based fluidsRapid release of entrained air results in minimal if any foaming
Super Compressor FluidFeatures and BenefitsFluid readily separates from water which increases the operating efficiency of the oil/condensate separator systemRelative high Flash Point (compared to mineral based oils) of 432oF for increase SafetySuper Compressor Fluid can be used effectively in vacuum pump applications. However, primary recommendation would be Super Vacuum Fluid
Rotary Screw CompressorsSuper Compressor FluidAdvantages of SCF versus competitive products
Significantly lower priced than GlycolsLower priced than PAO and DiestersLower Toxicity than GlycolsLower odour than DiestersBetter water separation than either Diesters or GlycolsLonger Service life than mineral based oils (3 to 5 times longer).
Typical Service Life - Compressor FluidsService Hours @ 190oF (Thousands)Tan, mg KOH/gExtrapolated from Hot Room dataTAN versus Service HoursSuper Compressor Fluid32Compressor Oil 32
Rotary Screw Compressors Factors Affecting Service LifeOil make up rate
Excessive oil make up due to leakage or high carry-over will increase service lifeOperating temperature
Increased ADT reduces service life (above 210oF, life for every 10oF increase)
190oF
8000 H /12 mths
200oF
6000 H
210oF
4000 H
220oF
2000 H
Rotary Screw Compressors Factors Affecting Service LifeOperating environment (chemicals, dust)
Ensure that intake air is as clean as possibleMaintenance practices (proper oil level and filter/separator changes)Condition of old oil at time of change out (acidic, dirty)How the change out was performedCondition of Compressor (sludge/varnish)
Maximum service life is obtained when compressor is clean and no contamination from previous oil
Super Compressor Fluid
Pour point (F)
]]Chart1
-27-27-38-38-43-59-65-65-76
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point (F)
]]Sheet1
PAO 1-76
PAO 2-65
PAO 3-65
PAG/DE-59
Diester 2-43
SCF 32-38
Diester 1-38
Mineral 2-27
Mineral 1-27
Mineral 1-27
Mineral 2-27
Diester 1-38
SCF 32-38
Diester 2-43
PAG/DE-59
PAO 3-65
PAO 2-65
PAO 1-76
]]Sheet1
000000000
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point ( F)
]]Sheet2
]]Sheet3
Super Compressor Fluid
Wear properties : ASTM D4172, 1200 rpm, 40 Kg
Chart1
0.450.450.570.60.610.610.70.890.94
SCF 32
Mineral 2
PAO 2
PAO 1
Mineral 1
PAO 3
PAG/DE
Diester 2
Diester 1
Wear Scar Diameter (mm)
Sheet1
POUR POINT
Mineral 1-27
Mineral 2-27
Diester 1-38
SCF 32-38
Diester 2-43
PAG/DE-59
PAO 3-65
PAO 2-65
PAO 1-76
Sheet1
000000000
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point ( F)
Sheet2
WEAR PROPERTIES
Diester 10.94
Diester 20.89
PAG/DE0.70
PAO 30.61
Mineral 10.61
PAO 10.60
PAO 20.57
Mineral 20.45
SCF 320.45
Sheet2
000000000
SCF 32
Mineral 2
PAO 2
PAO 1
Mineral 1
PAO 3
PAG/DE
Diester 2
Diester 1
Wear Scar Diameter (mm)
Sheet3
Super Compressor Fluid
Direct Scanning Calorimetry Oxidation test
Chart2
141526283030347078
Mineral 1
Mineral 2
PAO 1
PAG/DE
PAO 2
SCF 32
PAO 3
Diester 1
Diester 2
DSC Oxidation (mins)
DSC oxidation test, 200 C (390 F), 500 psi Oxygen, mins
Sheet1
POUR POINT
Mineral 1-27
Mineral 2-27
Diester 1-38
SCF 32-38
Diester 2-43
PAG/DE-59
PAO 3-65
PAO 2-65
PAO 1-76
Sheet1
000000000
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point ( F)
Sheet2
WEAR PROPERTIES
Diester 10.94
Diester 20.89
PAG/DE0.70
PAO 30.61
Mineral 10.61
PAO 10.60
PAO 20.57
Mineral 20.45
SCF 320.45
Sheet2
000000000
SCF 32
Mineral 2
PAO 2
PAO 1
Mineral 1
PAO 3
PAG/DE
Diester 2
Diester 1
Wear Scar Diameter (mm)
Sheet3
DSC oxidation Test
Mineral 114
Mineral 215
PAO 126
PAG/DE28
PAO 230
SCF 3230
PAO 334
Diester 170
Diester 278
Sheet3
000000000
Mineral 1
Mineral 2
PAO 1
PAG/DE
PAO 2
SCF 32
PAO 3
Diester 1
Diester 2
DSC Oxidation (mins)
DSC oxidation test, 200 C (390 F), 500 psi Oxygen, mins
Super Compressor Fluid
IP48 Oxidation test
Chart4
46.7143
18.4125
11.482
18.779.1
13.444.1
16.516.2
5.28.9
3.16.6
6.615.5
Weight Loss
Viscosity Increase
Percentage %
Modified IP48 test, 200 C (390 F), 24 Hours
Sheet1
POUR POINT
Mineral 1-27
Mineral 2-27
Diester 1-38
SCF 32-38
Diester 2-43
PAG/DE-59
PAO 3-65
PAO 2-65
PAO 1-76
Sheet1
000000000
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point ( F)
Sheet2
WEAR PROPERTIES
Diester 10.94
Diester 20.89
PAG/DE0.70
PAO 30.61
Mineral 10.61
PAO 10.60
PAO 20.57
Mineral 20.45
SCF 320.45
Sheet2
000000000
SCF 32
Mineral 2
PAO 2
PAO 1
Mineral 1
PAO 3
PAG/DE
Diester 2
Diester 1
Wear Scar Diameter (mm)
Sheet3
DSC oxidation Test
Mineral 114
Mineral 215
PAO 126
PAG/DE28
PAO 230
SCF 3230
PAO 334
Diester 170
Diester 278
Sheet3
000000000
Mineral 1
Mineral 2
PAO 1
PAG/DE
PAO 2
SCF 32
PAO 3
Diester 1
Diester 2
DSC Oxidation (mins)
DSC oxidation test, 200 C (390 F), 500 psi Oxygen, mins
Sheet4
IP48 Oxidation test
Weight LossViscosity Increase
PAG/DE46.7143
Diester 118.4125
Diester 211.482
Mineral 118.779.1
Mineral 213.444.1
SCF 3216.516.2
PAO 15.28.9
PAO 23.16.6
PAO 36.615.5
Sheet4
00
00
00
00
00
00
00
00
00
Weight Loss
Viscosity Increase
Percentage %
Modified IP48 test, 200 C (390 F), 24 Hours
Super Compressor Fluid
ASTM D1401 : Water separation at 54 C (130 F)
Product
Result
mL oil - mL water - emulsion (mins)
SCF 32
40-39-1 (10)
Mineral 1
4-0-76 (30)
Mineral 2
41-37-2 (10)
Diester 1
42-37-1 (25)
Diester 2
42-36-2 (25)
PAG/DE
1-0-79 (30)
PAO 1
42-36-2 (20)
PAO 2
41-39-0 (10)
PAO 3
4-11-65 (30)
Pricing
Price Ratio per 20L Pail
Chart2
0.34111.481.511.541.621.722.79
Mineral 1
SCF 32
PAO 3
Diester 1
Mineral 2
PAO 1
PAO 2
Diester 2
PAG/DE
Price Ratio per 20L Pail
Sheet1
POUR POINT
Mineral 1-27
Mineral 2-27
Diester 1-38
SCF 32-38
Diester 2-43
PAG/DE-59
PAO 3-65
PAO 2-65
PAO 1-76
Sheet1
000000000
Mineral 1
Mineral 2
Diester 1
SCF 32
Diester 2
PAG/DE
PAO 3
PAO 2
PAO 1
Pour Point ( F)
Sheet2
WEAR PROPERTIES
Diester 10.94
Diester 20.89
PAG/DE0.70
PAO 30.61
Mineral 10.61
PAO 10.60
PAO 20.57
Mineral 20.45
SCF 320.45
Sheet2
000000000
SCF 32
Mineral 2
PAO 2
PAO 1
Mineral 1
PAO 3
PAG/DE
Diester 2
Diester 1
Wear Scar Diameter (mm)
Sheet3
DSC oxidation Test
Mineral 114
Mineral 215
PAO 126
PAG/DE28
PAO 230
SCF 3230
PAO 334
Diester 170
Diester 278
Sheet3
000000000
Mineral 1
Mineral 2
PAO 1
PAG/DE
PAO 2
SCF 32
PAO 3
Diester 1
Diester 2
DSC Oxidation (mins)
DSC oxidation test, 200 C (390 F), 500 psi Oxygen, mins
Sheet4
IP48 Oxidation test
Weight LossViscosity Increase
PAG/DE46.7143
Diester 118.4125
Diester 211.482
Mineral 118.779.1
Mineral 213.444.1
SCF 3216.516.2
PAO 15.28.9
PAO 23.16.6
PAO 36.615.5
Sheet4
00
00
00
00
00
00
00
00
00
Weight Loss
Viscosity Increase
Percentage %
Modified IP48 test, 200 C (390 F), 24 Hours
Sheet5
PRICING
Mineral 1450.34
SCF 321311.00
PAO 31301.00
Diester 11941.48
Mineral 21981.51
PAO 12021.54
PAO 22121.62
Diester 22251.72
PAG/DE3652.79
Sheet5
000000000
Mineral 1
SCF 32
PAO 3
Diester 1
Mineral 2
PAO 1
PAO 2
Diester 2
PAG/DE
Price per 20L Pail ($ Can)
Rotary Screw CompressorsSpecialty ProductsEndurance 8000 has all the features and benefits of Super Compressor Fluid
Intended for applications subjected to low ambient temperatures (pour point of -54oC (-65oF))8000 hrs or 1 year with ADT
Rotary Screw CompressorsSpecialty ProductsFor Natural Gas compression applications use SPX Fluids
SPX fluids are ISO 150 polyalkylene glycols which are insoluble in hydrocarbons and resist wash-offSPX 5000 is used in compression of sweet gas and in propane refrigeration serviceSPX 7000 is used for very high pressure applications and in the compression of sour and/or wet gasSPX 7000 will dissolve up to 20% water below 155oF which helps prevent corrosion during compressor shut-down
Rotary Screw CompressorsSpecialty ProductsFor use in natural gas field booster applications use NGS 1000NGS 1000 is an ISO 100 Synthetic (HT & PAO) fortified with corrosion inhibitors, lubricity improvers, antifoam, and pour point depressant additivesNGS 1000 is developed for harsh chemical environments and high temperatures
Rotary Screw CompressorsSpecialty ProductsIn dirty compressors use Compressor Cleaner before introducing the new compressor fluid
Optimum performance and oil service life when compressor is cleanPetro-Canada Compressor Cleaner is specifically designed to dissolve varnish and solubilize sludge from compressors while the unit is operatingShould not be run beyond 400 hr..Must be used when switching from a poly-glycol to a mineral or PAO based compressor oil
Reciprocating Compressors
Reciprocating CompressorsRole of LubricantPrimary role of a lubricant in a reciprocating compressor
Reduce friction and wear on moving partscool bearingsHelp seal compression chamberShould deposit little or no carbon on valves and exhaust services Prevent corrosion during shutdown
Reciprocating CompressorsBasic componentsReciprocating Compressors have many of the same components as an internal combustion engine
Reciprocating CompressorsLubrication RequirementsCrankcase oil lubricates journal bearings and connecting rodsSmaller unit may depend on splash lubrication for cylinder walls, piston pins/rings and valvesLarger units use pressurized drip systems to lubricate these components.
Reciprocating Compressors RecommendationsLubrication Recommendations
Older machines and those used intermittently, Compressor Oil 68 or 100Newer compressors and those used more than 4 hours/day, RCF-1000Small units (less than 2 hp) can use motor oil available in convenient small sizes (1 and 4 L bottles) that suit the small sumps
RCF-1000Synthetic blend (esters + HT based)Specifically formulated for single and multi-stage reciprocating compressors operating at high discharge temperatures (> 150C or 300oF)For use in splash lubricated, drip fed, and oil injected piston compressorsHigh viscosity index allows usage when either an ISO 68 or 100 is specified
Reciprocating CompressorRCF-1000 Service LifeRCF-1000 will operate up to 9000 hours in the compressor crankcase or 1 year what ever comes firstLength of service between valve overhaul is a function of compressor design, proper maintenance of oil feed rate and cleanliness of incoming air; target minimum 3000-6000 hours.
Reciprocating CompressorsRCF-1000 BenefitsRCF-1000 Performance benefits
Versus Mineral OilReduce maintenance costs due to less build-up of carbon.Excellent resistance to water contaminationLonger Life.
Reciprocating Compressors RCF-1000 BenefitsRCF-1000 Performance benefits
Versus DiesterReduced OdourLonger LifeNote that Diesters will keep valves cleaner than RCF-1000Versus PolyglycolLower priceEase of disposability
Reciprocating CompressorsCylinder Lubrication Over-lubrication is wasteful and may cause harmOnly slight film of oil should be present on the cylinder wallsPeriodically check exhaust valve for depositsToo much oil on the valve or excessive carbon built up usually indicates over lubrication
Reciprocating CompressorsNatural Gas CompressorsReciprocating Natural Gas Compressors require different lubrication from air compression service.
Compressors of dry, sweet natural gas can be lubricated with PC Gas Engine Oil (NGEO) in both the crankcase and upper cylindersWith sour or wet NG compression, the standard natural gas engine oils (PC Gas Engine Oil ) can be washed off, resulting in high wear in the rod packing and upper cylinder areas.
Reciprocating CompressorsNatural Gas CompressorsTo combat the washing-off effect with sour or wet natural gas:
Continue to use PC Gas Engine Oil, but increase the feed rate to compensate for the washing off factorUse the specially formulated heavier lubricant designed to resist wash-off, Compressor Oil RP 268 and RP460 For high pressure (>3000 psi) cylinder lubrication use the SPX 7000 Fluid
Rotary Vane Compressors
Rotary Vane CompressorRotary vane compressors stress the fluid more severely than any other type of compressors.Both Purity FG Compressor Lubricant 100 and Super Compressor Fluid 150 are rated as 1000 hour fluids in vane compressors. There are products on the market that have a 4000 hr rating, well beyond what we can currently offer.
Blowers and CentrifugalCompressors
Blowers and Centrifugal CompressorsLobe type compressors (blowers) dont put a lot of stress on the oil.
Generally would recommend a good quality mineral type oil such as Premium R&O 46 or 68 Centrifugal Compressors usually require a turbine-quality oil such as Premium R&O 32 or Super Turboflo 32.Either type of compressor will give good performance using Super Compressor Fluid.
Compressor Fluids SummaryPetro-Canada has a full range of Compressor Fluids to compete with virtually any product on the marketCompressor Oils are competitively priced with performance equal to or better than any other competitive mineral based compressor oil.Super Compressor Fluid provides synthetic performance at a lower price. It is inherently environmentally friendly, non toxic and can be disposed of with regular mineral oil.
Compressor FluidsSummarySCF benchmarking revealed its superiority even when compared head-to-head with expensive syntheticsEndurance 8000 has all the strength of Super Compressor Fluid with a lower cold temperature operating range RCF-1000 has been formulated to significantly reduce valve deposits in hot recips, what mineral oils are notorious for
Compressor FluidsSummaryFor the compression of Natural gas or Hydrocarbon gasses the following products are used:
SPX Fluids in rotary screw compressorsIn Reciprocating compressor:P-C Gas Engine OilCompressor Oil RPSPX 7000 Compressor Cleaner to clean dirty/varnished compressors or when switching from a diester or a polyalkylene glycol to Super Compressor Fluid
POWER POINT TEMPLATE FOR LUBETECH 98
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