Mobil Gargoyle Arctic SHC NH 68

Synthetic Lubricant for refrigeration compressors - Ammonia applications

  • 安全数据表 (MSDS)
  • 产品数据表 (PDS)

Mobil Gargoyle Arctic SHC NH 68 is a fully synthetic lubricant, specifically designed to lubricate refrigeration compressors in high performance plants using ammonia as the refrigerating fluid. MobilGargoyle Arctic SHC NH 68 is formulated using wax free, synthesized hydrocarbons of polyalphaolefin (PAO) and synthetic Alkylbenzene base oils, which have demonstrated outstanding resistance to thermal/oxidative degradation. Even in the worst operating conditions, Mobil Gargoyle Arctic SHC NH 68 will reduce sludge and deposit formation, hence avoiding or minimizing valve or filter plugging.

 

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数据表

产品数据表 (PDS)
安全数据表 (MSDS)

技术资源

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Features and Benefits

The Gargoyle Arctic SHC brand of lubricants are recognised and appreciated around the world for their innovation and outstanding performance.  Mobil Gargoyle Arctic SHC NH 68 offers exceptional advantages  for ammonia applications  as follows.

Features Advantages and Potential Benefits 
Very low pour pointEnables evaporator temperature below conventional mineral naphthenic oils
SolvencyCleaning effect, especially when switching from mineral oil technology
Wax-free Excellent low temperature fluidity, no waxy deposits and improved evaporator efficiency 
Superior thermal/oxidative and chemical stability Long oil life compared to mineral lubricant, inducing extended drain intervals and lessroutine maintenance. In turn reduction of maintenance costs 
Good compatibility with seals previously used with mineral lubricant Limited risk of oil leakage 
Low volatility Avoids viscosity build-up, reduced oil consumption

 

Application

Mobil Gargoyle Arctic SHC NH 68 is recommended for use in screw or reciprocating refrigerationcompressors, in plants using ammonia as refrigerating fluid.Mobil Gargoyle Arctic SHC NH 68 is compatible with mineral lubricants, however, in case ofswitch over, performances or benefits may be minimized, depending on the ratio of mineral oilremaining in the blend. In such case, a specific oil analysis follow up with control of filters should be handled in the following 6 months accordingly.

 

Typical Properties

Test Method Mobil Gargoyle Arctic SHC NH 68 
ISO VG68
Viscosity ASTM D445 
cSt at 40°C64
cSt at 100°C8.5
Viscosity Index ASTM D2270111
Specific Gravity ( @15 °C) ASTM D12980.85
Flash Point, oC ASTM D93211
Pour Point, oC ASTM D97- 54
Color ASTM D15000.5
Copper Strip Corrosion, ASTM D 130, 3 h@ 100ºC1B
Water Content, ppm, ASTM D 1533‹100

 

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDSs are available upon request through your sales contract office, or via the Internet on http://www.exxonmobil.com. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

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