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Superior Engines

Superior SGTD engine
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Superior SGTD engine
OVERVIEW

Efficient, Durable, and Hassle-Free Engines for Heavy-Duty Service

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 turbocharged gas engines provide 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.

OVER 30 NICHE VERTICALS

Superior SGTD Engine Uses & Benefits

Perfect 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 Certified.

Reduced Fuel Consumption & Lower Emissions

  • Optimal fuel/air mixing in the cylinder.
  • Timed fuel injection.
  • Charged air intercooling.

Adapts to Variations in Fuel Quality & Long Life

  • Low compression pistons and low BMEP to maintain a conservative level of dynamic stresses.
  • Based on original 825 Series (147 BMEP).
  • Simple design for ease of maintenance without special tools or specialized training.

ideally packaged with superior compressors

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.

Engine Frame Ratings

Engine SpecificationsSuperior Model
12SGTD16SGTD
Number of Cylinders1216
Rated Power [ bhp (kW) ]2,000 (1,490)2,650 (1,975)
Rated Speed [ rpm }900900
Bore / Stroke [ in (cm) ]10 x 10.5 (25.4 x 26.7)10 x 10.5 (25.4 x 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)2.75 (7)
Starting Air System
Pressure [ psi (bar) ]150 (10.3)150 (10.3)
Consumption Rate (Air) [ scfm (liters/sec) ]1,500 (708)1,500 (708)
Consumption Rate (Gas) [ scfm (liters/sec) ]1,781 (841)1,781 (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) ]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) ]3.3 (12.5)5.28 (20)
Lube Oil Outlet Temperature [ °F (°C) ]165 - 175 (74 - 79)165 - 175 (74 - 79)
Lube Oil Filters Micron1515
Brake Specific Fuel Consumption
100% Load [ btu/Bhp-hr (kcal/kW-hr) ]7,100 (2,400)7,100 (2,400)
75% Load [ btu/Bhp-hr (kcal/kW-hr) ]7,400 (2,500)7,400 (2,500)
50% Load [ btu/Bhp-hr (kcal/kW-hr) ]7,900 (2,670)7,900 (2,670)
Engine EmissionsƗ
NOx [ grams/Bhp-hr ]0.70.7
CO [ grams/Bhp-hr ]2.52.5
NMHC [ grams/Bhp-hr ]0.750.75
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)
Dimensionsŧ
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 (26910 (269)

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