Typical Physical Characteristics

Turbo GT				32	46
ISO Viscosity grade			ISO 3448	32	46
Kinematic Viscosity
	40°C	mm²/s	ASTM D 445	31.4	47.3
	100°C	mm²/s	ASTM D 445	5.78	7.74
Viscosity Index			ASTM D 2270	>125	>125
Density at 15°C		g/cm³	IP 365	0.844	0.848
Flash Point COC		°C	ASTM D 92	230	245
Pour Point		°C max	ASTM D 97	-15	-15
Neutralisation Number		mg KOH/g	ASTM D 974	0.10	0.10
Air release at 50°C		minutes	ASTM D 3427	2	3
Copper Corrosion (3hr/100°C)			ASTM D 974	1b	1b
Rust-preventing properties			ASTM D 665 A and B	No Rust	No Rust
Oxidation Stability
	RPVOT	minutes	ASTM D 2272	>1000	>1000
	Modified RPVOT	% of RPVOT		>95%	>95%
	TOST lifetime	hr	modified ASTM D 943	>8,000	>8,000
	TOST 1000hr sludge	mg/kg	IP 157	<40	<40
Oxidation Test 175°C/72 hr			FTM-791b-5308-7
	Sludge Content	mg		52	57
	Viscosity change	%		+5	+5

 

Specifications and Approvals

Shell Turbo GT exceeds the specification requirements of the major turbine manufacturers including: 

• DIN 51515-1, 51515-2
• Siemens Power Generation TLV 9013 04
• Alstom Power Turbo-Systems HTGD 90-117
• Alstom/ABB HTGD 90-117T
• General Electric – GEK 32568f, GEK 107395a, GEK 28143b – Type I (ISO 32), GEK 28143b – Type II (ISO 46)
• Solar ES 9-224W Class II
• ASTM 4304-06a Type III

 

 Applications

Shell Turbo Oil GT has been developed for the most severe operating conditions imposed by modern, heavy duty industrial gas turbines. Blended with Group III base oils some of Shell Turbo Oils GT’s physical properties differ significantly from those of conventional turbine oils.

• Power and industrial heavy duty gas turbines

Shell Turbo GT is used as the lubricating oil for main shaft bearings and mechanical gears as well as the governor oil in the turbine control valves in modern gas turbines.

• Further industrial applications

Shell Turbo GT may also be used for other industrial applications requiring a high performance gas turbine oil, such as the lubrication of turbo compressors