美孚佳高SHC NH68合成冷冻机油

Mobil Gargoyle Arctic SHC NH 68

Synthetic Lubricant for refrigeration compressors - Ammonia applications

Product Description

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.

 

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 point	Enables evaporator temperature below conventional mineral naphthenic oils
Solvency	Cleaning 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 VG	68
Viscosity ASTM D445
cSt at 40°C	64
cSt at 100°C	8.5
Viscosity Index ASTM D2270	111
Specific Gravity ( @15 °C) ASTM D1298	0.85
Flash Point, oC ASTM D93	211
Pour Point, oC ASTM D97	- 54
Color ASTM D1500	0.5
Copper Strip Corrosion, ASTM D 130, 3 h@ 100ºC	1B
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.

The ExxonMobil logotype, Mobil ａnd Gargoyle SHC are trademarks of Exxon Mobil Corporation, or one of its subsidiaries. 

6-2011 

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