GE GEA31212 Technical Specifications

GE Oil & Gas

Superior* SGTD Engines

Hit the sweet spot for medium-speed gas drivers

Superior SGTD 12- and 16-cylinder gas engines
reach peak power and efficiency when packaged
with Superior MH, WH or WG separable
compressors operating at 900 RPM.

Superior Engines Since 1889

The Superior brand name has a long-standing reputation for high
quality engine and compressor products, dating back to 1889. Since
1976 alone, more than 10,000 Superior engines and compressor
frames have been manufactured and installed worldwide in a
variety of high- and medium-speed applications.

Superior turbocharged gas engines are medium-speed and built
for continuous, heavy-duty service. Optimal fuel/air mixing in
the cylinder, timed fuel injection, and air-charged intercooling
result in reduced fuel consumption and lowered emissions. The
low compression (8.75:1) pistons keep dynamic stresses at a
conservative level, provide for more stable operation and enhance
engine tolerance to variations in quality of fuel.

The conservative horsepower rating of Superior engines provides
ample reserve for emergency situations. Intercooling with optimal
valve overlap results in cooler combustion chamber parts while
assuring lower fuel consumption, greater efficiency, longer service

life and trouble-free operation.

Designed Specifically for Natural Gas
Compression Applications

• Built for continuous, heavy- duty service

• Medium speed, four-cycle, spark ignited natural gas engine

• Turbocharged and intercooled

• ATEX compliant to Group II, Category 3, Zone 2 (G)

• CE mark

SGTD Engine

MH / WH Compressors

WG Compressors

GE Oil & Gas offers a wide range of compressor solutions for your
unique gas applications. All of our Superior compressor packages are
designed for application flexibility and engineered to provide rugged,
reliable service and value.

Designed for Reduced Fuel Consumption
and Lower Emissions

• Optimal fuel/air mixing in cylinder

• Timed fuel injection

• Charge air intercooling

Designed for Variation in Fuel Quality
and Long Life

• Low compression pistons and low BMEP to maintain a
conservative level of dynamic stresses

• Based on original 825 Series (147 BMEP)

• Uncomplicated design for ease of maintenance without special

tools or specialized training

Superior Engine Technical Data

Engine Specifications

No. of Cylinders 12 16
Bhp [kW] 2,000 (1,490) 2,650 (1,975)
Rated Speed [ rpm* ] 900 900
Bore / Stroke [ in (cm) ] 10 x 10.5 (25.4 26.7) 10 x 10.5 (25.4 26.7)
Displacement [ in3 (liter) ] 9,896 (162) 13,195 (216)
BMEP [psi (bar)] 177.8 (12.4) 177.8 (12.4)
Piston Speed [ fpm (m/s) ] 1,575 (8) 1,575 (8)
Bearing Diameters

Main [ in (cm) ] 8 (20.3) 8 (20.3)
Crankpin [ in (cm) ] 6.375 (16.2) 6.375 (16.2)
Piston Pin [ in (cm) ] 3.5 (8.9) 3.5 (8.9)
Camshaft [ in (cm) ] 2.75 (7.0) 2.75 (7.0)

Starting Air System

System Pressure [ psi (kg/cm2) ] 150 150
Consumption Rate (Air) [ scfm (liters/sec) ] 1500 (708) 1500 (708)
Consumption Rate (Gas) [ scfm (liters/sec) ] 1781 (841) 1781 (841)

Air Intake System

Air Intake Flow Rate [ scfm (m3/min) ] 4,895 (139) 6,526 (185)
Air Intake Pressure Drop (Max.) [ in H2O (cm H2O) ] 10 (25.4) 10 (25.4)

Fuel Gas System

Fuel Gas Pressure [ psi (bar) ] 50 - 55 (3.4 - 3.8) 50 - 55 (3.4 - 3.8)

Exhaust System

Exhaust Temperature [ °F (°C) ] 760 (404) 760 (404)
Exhaust Flow [ lbs./min. (kg/min) ] 385 (175) 514 (233)
Exhaust Back Pressure (Max.) [ in H2O (cm H2O) ] 10 (25.4) 10 (25.4)

Cooling Water System

Jacket Water System Capacity [ Gal (liters) ] 146 (553) 186 (704)
Jacket Water Outlet Temperature [ °F (°C) ] 165 - 180 (74 - 82) 165 - 180 (74 - 82)
Design Flow Rate at Rated Speed [ gpm (liters/min) ] 750 (2,838) 775 (2,933)
Intercooler Water Pump Flow [ gpm (liters/min) ] 200 (757) 340 (1,287)

Lube Oil System

Lube Oil System Capacity [ gallons (liters) ] 165 (625) 220 (835)
Lube Oil System Flow [ gpm (liters/min) ] 70 (265) 90 (341)
Lube Oil Consumption [ gal/day (liters/day) ] 3.30 (12.5) 5.28 (20)
Lube Oil Outlet Temperature [ °F (°C) ] 165 - 175 (74 - 79) 165 - 175 (74 - 79)

Lube Oil Filters Micron 15 15
Brake Specic Fuel Consumption
100% Load [ btu/Bhp-hr (kcal/kW-hr) ] 7100 (2400) 7100 (2400)
75% Load [ btu/Bhp-hr (kcal/kW-hr) ] 7400 (2500) 7400 (2500)
50% Load [ btu/Bhp-hr (kcal/kW-hr) ] 7900 (2670) 7900 (2670)
Engine Emissions†

NOx [ grams/Bhp-hr (mg/Nm3) ] 0.7 (300) 0.7 (300)

CO [ grams/Bhp-hr (mg/Nm3) ] 2.5 (1100) 2.5 (1100)

NMHC [ grams/Bhp-hr (mg/Nm3) ] 0.75 (330) 0.75 (330)
Dry Weight [ lbs (kg) ] 42,500 (19,280) 54,000 (24,494)

Heaviest Lift (Cylinder Block) [ lbs (kg) ] 10,400 (4,717) 11,000 (4,990)

Exhaust Manifold [ lbs (kg) ] 1,210 (549) 1,530 (694)

Turbocharger Assembly [ lbs (kg) ] 1,170 (531) 1,170 (531)

Cylinder Head [ lbs (kg) ] 250 (113) 250 (113)

Piston and Connecting Rod [ lbs (kg) ] 198 (90) 198 (90)
Overhead Clearance to Remove Piston and Connecting Rod [ in (cm) ] 89 (226) 89 (226)
Dimensions‡

Length [ ft - in (cm) ] 15 - 4 (467) 18 - 5 (560)

Width (without platforms) [ ft - in (cm) ] 7 - 4 (224) 7 - 9 (235)

Height [ ft - in (cm) ] 8 - 10 (269) 9 - 2 (279)

* Minimum permissible operating speed is 600rpm. Corresponding Bhp and kW values are available within these speed ranges.
† Qualifying conditions:
Pipeline quality gas with a methane content > 90% with a LHV of 900 btu/scf ± 15%130°F manifold temperature, intercooler water temperature < 120°F, ambient temperature = 100°F, altitude < 4,000ft.
Refer to factory for all other conditions
‡ Dimensions are approximate and not to be used for construction.

Model Model

12SGTD 16SGTD

GE Oil & Gas
16250 Port Northwest
Houston, TX 77041

24/7 customer support: [phone]
geoilandgas.com

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GEA31212 (07/2014)