GST EP 32

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GST EP is a high performance anti-wear turbine fluid designed for use primarily in industrial gas and steam turbines, including those with reduction gear systems.

High performance anti-wear type steam and gas turbine fluid

GST EP is formulated with premium base oils and an ashless anti-wear additive system, in combination with effective rust, oxidation and foam inhibitors.

Benefits

  • Ashless anti-wear additives promote reliable protection against wear and scuffing in loaded reduction gearbox component surfaces
  • Premium base oils and inhibitor systems contribute to long-term oxidation stability and resistance to oil breakdown, increasing system uptime
  • Premium base oils and oxidation inhibitors help resist harmful deposit formation in high temperature bearings and other hot areas
  • Rust inhibitor helps protect system components against corrosion. Good water separability offers rapid settling of water accumulated from steam condensate, or leakage from saltwater cooling
  • Non-Silicone foam inhibitors aid rapid release of entrained air, contributing to reliable operation of sensitive hydraulic control devices

Applications

  • Stationary industrial gas and steam turbines
  • Stationary industrial gas turbines with reduction gear sets
  • Industrial gas turbines in severe service
  • Hydraulic turbines
  • Rotating machinery in gas and steam combined-cycle cogeneration units
  • Bath and circulating systems supplying moderately loaded gear sets, low pressure hydraulic systems, vacuum pumps, rolling element bearings, machine tools, conveyors and electrical motors
  • Air compressors, turbo-blowers and centrifugal pumps requiring a rust and oxidation inhibited anti-wear oil. Not intended for use in aviation-derivative gas turbines. Must not be used in breathing air compressors

Specifications

  • ASTM
  • Ansaldo Energia
  • British Standard
  • Cincinnati Machine
  • DIN
  • GEC Alstom
  • General Electric
  • ISO
  • JIS
  • MAN
  • Siemens
  • Solar

Approvals

  • GST EP 32 GST EP 46 GST EP 68 Ansaldo Energia AD00020487 A A (previous Ansaldo Energia G-HTCT689029 ) Ansaldo Energia TGO2-0171-E00000/C, AE64.3A A A GE HTGD 90117 V0001 AC A A SIEMENS TLV 9013 04 / 05 A A SIEMENS TLV 9013 06 A MAN Energy Solutions 10000494596 (1) A A A TGM Kanis WN000023 Rev. 15 A A ASTM 4304 - typ I / typ II / typ III M M M ANSI/AGMA 90005-E02-R&O M M M ANSI/AGMA 90005-E02-EP M M M BS-489: 1999 M M China National std GB 11120-2011 L-TSA Type A M M M China National std GB 11120-2011 L-TSA Type B M M M China National std GB 11120-2011 L-TSE Type A M M M (Type B not existed) China National std GB 11120-2011 L-TGA M M M China National std GB 11120-2011 L-TGE M M M China National std GB 11120-2011 L-TGSB M M M China National std GB 11120-2011 L-TGSE M M M DIN 51515 Pt. 1 2010-02, TD32, 46, 68,100 M M M DIN 51515 Pt. 2, 2010-02, TG32&46 M M GEC Alstom NBA P50001A M M GEC Alstom NBA P50003A M M GEK 101941A / 107395A / 120498 / 27070 M GEK 28143B M M M GEK 28143B, AW M M GEK 32568e-P M GEK46506 d, e M GE Oil and Gas, ITN52220.02 M M Table 1 Section 1, 2,3

Typical test data

Test Test Methods Results
Viscosity Grade 32
Shelf Life: 60 months from date of filling indicated on the product label
Density at 15°C, kg/l ASTM D1298 0.8618
Kinematic viscosity at 40°C, mm²/s ASTM D445 32
Kinematic viscosity at 100°C, mm²/s ASTM D445 5.4
VI ASTM D2270 102
Pour Point, °C ASTM D97 -30
Flash Point, °C ASTM D92 222
Air release at 50°C, mins ASTM D3427 2.1
FZG fail Load Stage ASTM D5182 >12
Oxidation Stability
Tost, hrs to 2.0 Acid N° ASTM D 943 10.000+
RPVOT ASTM D2272 1700

Source: PDS 27 June 2025 · Product Data Sheet

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