The Mobil Gargoyle Arctic SHC™ 200 Series are fully synthetic, superior performance lubricants, specifically designed for use in refrigeration compressors and heat pumps. They are formulated from wax-free, synthesised hydrocarbon polyalphaolefin (PAO) fluids, which have outstanding resistance to thermal/oxidative degradation. With their naturally high shear stable viscosity indexes and low temperature fluidity, they are able to perform in severe service conditions that are beyond the capabilities of many conventional mineral oils. Their solubility and miscibility with commonly used refrigerants is low, resulting in higher film thickness in the presence of refrigerants under pressure. This can help to reduce shaft seal leakage. Their stability and low volatility characteristics reduces the  "light end stripping" which can occur with conventional mineral oils. Mobil Gargoyle Arctic SHC 200 Series lubricants may help reduce frictional losses and improve machine operating efficiencies.

 

Mobil Gargoyle Arctic SHC 200 Series lubricants are recommended for the lubrication of refrigeration compressors operating at very high temperatures, and for systems with very low evaporator temperatures. They are suitable for compressor systems using refrigerants such as ammonia and carbon dioxide. Their  low miscibility with carbon dioxide makes them a suitable choice for screw compressors using carbon dioxide. They are compatible with most common refrigerants, except sulphur dioxide, and have been particularly successful in systems using ammonia as the refrigerant. Mobil Gargoyle Arctic SHC 200 Series are fully miscible with most conventional mineral refrigeration oils. Any mixture with mineral oils may detract from the outstanding performance properties of the Mobil synthetic product.

 

Datasheets

Features and Benefits

The Mobil Gargoyle Arctic SHC brand of lubricants are recognized and appreciated for their innovation and outstanding performance.

Our work with equipment builders has helped confirm the results from our own laboratory tests showing the exceptional performance of the Mobil Gargoyle Arctic SHC 200 Series lubricants. Not least among the benefits shown in work with OEMs is the superb low temperature capability providing excellent fluidity at low temperatures, as well as the resistance to viscosity loss due to refrigerant absorption under pressure, along with providing excellent bearing film thickness and shaft sealing properties.

By its nature, the PAO base stock  used in Mobil Gargoyle Arctic SHC 200 Series oils provides exceptional thermal/oxidative resistance critical for high temperature applications. The narrow molecular weight distribution of the PAO base stocks also minimizes volatility and can help to reduce oil carryover. Mobil Gargoyle Arctic SHC 200 Series oils offer the following features and potential benefits:

 

Features

Advantages and Potential Benefits

High oil film thickness in the presence of refrigerant

Improved compressor protection for extended compressor life as well as better shaft sealing, reduced bearing fatigue and less unscheduled downtime

Excellent thermal/oxidative and chemical stability

Long oil life and reduced frequency of drain intervals and routine maintenance

Reduced lacquer and deposit formation

Low volatility

Viscosity remains consistent with reduced oil consumption

High Viscosity Index and wax-free

Excellent low temperature fluidity, no waxy deposits and improved evaporator efficiency

Low traction coefficient

Potential for improved system efficiency and reduced power consumption

Seal compatibility

Long seal life, reduced shaft seal leakage

 

Applications

Mobil Gargoyle Arctic SHC 200 Series are fully synthetic lubricants specifically designed for use in refrigeration compressors and heat pumps.

 

Application Considerations: While Mobil Gargoyle Arctic SHC 200 Series are compatible with mineral oil products, a mixture will detract from their performance.  Systems should be thoroughly flushed and cleaned when replacing a mineral product with a Mobil Gargoyle Arctic SHC 200 Series product. In the case of R22 refrigerants, guidance from the supplier of the refrigeration unit must always be sought to ensure compressor operation is suitable for efficient separation of the oil and refrigerant.

 

Typical applications are indicated below:

     •  Commercial, industrial, heat pump applications and marine refrigeration systems

     •  Commercial, industrial and residential heat pump applications

     •  Recommended for both reciprocating and rotary compressor designs

     •  Recommended for use with the following refrigerants: Ammonia and Carbon Dioxide

 

Specifications and Approvals

This product is registered to the requirements of:

224

226E

228

230

234

NSF H1

X

X

X

X

X

 

This product meets or exceeds the requirements of:

224

226E

228

230

234

FDA 21 CFR 178.3570

X

X

X

X

X

 

Properties and Specifications

Property

224

228

230

234

226E

Grade

 

ISO 100

ISO 220

 

ISO 68

Copper Strip Corrosion, 3 h, 100 C, Rating, ASTM D130

1A

1A

1A

1A

1A

Flash Point, Cleveland Open Cup, °C, ASTM D92

230

255

260

280

266

Foam, Sequence I, Stability, ml, ASTM D892

0

0

0

0

0

Foam, Sequence I, Tendency, ml, ASTM D892

10

10

10

10

10

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445

5.6

13.7

25.0

40.0

10.1

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445

29.0

97.0

220

399

69.0

Pour Point, °C, ASTM D97

<-54

-45

-39

-39

-45

Specific Gravity, 15 C/15 C, ASTM D1298

0.82

0.84

0.85

0.85

0.83

Viscosity Index, ASTM D2270

132

147

149

150

136

 

Health and Safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx