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G3520B Low Emissions Gas Compression Engine

The line of G3500B engines brings versatility, uptime, and low operating cost to your gas compression operation. They deliver the lowest engine-out emissions in the industry without sacrificing performance. Ideal applications for G3500B engines include gas lift, gas gathering, and wellhead gas compression. Cat G3520B gas engine. Ratings: 1104-1286 bkW (1480-1725 bhp) @ 1200-1400 rpm are NSPS site compliant capable.

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Minimum Rating 1480 BHP
Maximum Rating 1725 BHP
Emissions NSPS Site Compliant Capable
Ignition, Protection ADEM™ A3
Air Inlet System
  • Axial Flow Air cleaner
  • Cleanable
  • Intermediate-duty with service indicator
Control System
  • ADEM A3 with integrated electronic throttle control
  • Control panel
Cooling System
  • Two-stage charge air cooling
  • Thermostats and housing
  • Engine-driven jacket and aftercooler water pump
  • Stainless steel aftercooler cores
Exhaust System
  • Dry exhaust manifolds
  • Dry exhaust elbow
Flywheels and Flywheel Housings
  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation
Fuel System
  • 7-50 psi gas supply
  • Fuel system is sized for 800 to 1200 btu/scf (31.5 to 47.2 MJ/Nm3)
  • Electronic fuel metering valve
  • Gas pressure regulator
  • Gas shutoff valve (GSOV)
Ignition System
  • ADEM A3
Lubrication System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — 143 gal
  • Drain valve
  • Oil sampling valve
  • Turbo oil accumulator
Mounting System
  • Engine mounting rails - 330.2 mm (13 in) industrial-type
Power Take-Offs
  • Front housing — two-sided
  • Front lower LH, RH, and upper RH accessory drives
General
  • Paint — Cat yellow
  • Crankshaft vibration damper and guard
  • CSA Certification, Class 1 Division 2, Group D - electrical system and instrumentation - includes ADEM A3 and control panel
Air Inlet System
  • Round air inlet adaptors
Charging System
  • Charging alternator - CSA approved 24V, 65 A
Cooling System
  • Flexible connections
Exhaust System
  • Flexible fittings
  • Flange and expander
Fuel System
  • Gas filter
Instrumentation
  • Communications module
Lubrication System
  • Lubricating oil
  • Oil bypass filter
  • Air prelube pump
Power Take-Offs
  • Front stub shaft
  • Pulleys
  • Double damper
Protection System
  • Explosion relief valves
  • Secondary GSOV
Starting System
  • Air starting motor with controls (90 psi or 150 psi)
  • API B16.3 compliant piping
  • Jacket water heater
  • Barring group
General
  • Special paint
  • Torsional vibration analysis
EU Certification
  • EEC DOI certification
Support
  • Factory commissioning