Product Description

SYF-1740/68 is a high-performance synthetic gas compressor lubricant based on a poly-alkylene glycol. It is designed for enclosed pattern gas compressors for hydrocarbon and chemical gases where the crankcase and bearings operate in a gas-filled atmosphere. Under these conditions the gas is readily soluble in mineral oil lubricants which, on dilution, suffer a significant drop in viscosity and lubricant performance. This problem can be overcome by using SYF-1740/68 in which the gases are much less soluble. SYF-1740/68 is particularly suitable for marine service on vessels carrying specialist liquefied gas cargoes.

Benefits

·        Reduced gas solubility leading to improved wear protection, extended lubricant life, improved compressor efficiency and Reduced foaming.

·        Multi-gas service for a wide range of gases including vinyl chloride and butadiene. The lubricant does not promote the Dimerisation of butadiene or generate solid deposits.

 SYF-1740/68 therefore obviates the need to change to mineral oil for butadiene compression, thus simplifying the lubricant inventory, avoiding mistakes and saving time and expense.

Applications

SYF-1740/68 is used for the following gases:

•    Liquefied petroleum gases such as propane and butane.
•      Liquefied natural gases such as methane and ethane.
•      Hydrocarbon chemical gases such as ethylene, propylene and butylene.

Typical Properties

SYF 1740/150	VALUES	Test Method
Specific Gravity	1.02	ASTM D 941
Viscosity, cSt @ 40°C	68	ASTM D 445
Viscosity, cSt @ 100°C	12.5	ASTM D 445
Pour Point, (°C)	-30	ASTM D 97
Flash Point, (°C)	260	ASTM D 92
Copper Strip Corrosion, 3 hrs. @ 212°F/100°C	1A	ASTM D 130
4-Ball Wear, 40kg, 1 hr., 1800 RPM, (mm)	0.75	ASTM D 2783
Weld Point, kg	130	ASTM D 2783
Evaporation   Loss,     %, 300°F/149°C, 73 hrs.	0.48	ASTM D 2878
Viscosity Index	184	ASTM D 2270
Ferrous Metal Corrosion (Rust Test)
Distilled Water	Pass	ASTM D 665A
Synthetic Sea Water	Pass	ASTM D 665B
Foam Tendency (Sequence I, II, III)	Nil	ASTM D 892