G3508

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Overview

The line of G3500 engines brings versatility, uptime, and low operating cost to your gas compression operation. They are equipped with ADEM A3 technology that enables highest performance and safety while maintaining low emissions.Ideal applications for G3500 engines include gas lift, gas gathering, and wellhead gas compression. Cat G3508 gas engine. Ratings: 391-500 bkW (524-670 bhp) @ 1200-1400 rpm are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment or available for non-regulated areas.

Engine Specifications

Units:
Minimum Rating 524.0 bhp 391.0 bkW Less
Maximum Rating 670.0 bhp 500.0 bkW Less
Emissions NSPS Site Compliant Capable or Non-regulated NSPS Site Compliant Capable or Non-regulated Less
Ignition, Protection ADEM™ A3 ADEM™ A3 Less
Air/Fuel Ratio Control ADEM™ A3 ADEM™ A3 Less

Engine Design

- Proven reliability and durability - Ability to burn a wide spectrum of gaseous fuels - Robust diesel strength design prolongs life and lowers owning and operating costs- Broad operating speed range

Emissions

Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2007/8

Advanced Digital Engine Management

ADEM A3 control system providing integrated ignition, speed governing, protection, and controls, including detonation-sensitive variable ignition timing. ADEM A3 has improved: user interface, display system, shutdown controls, and system diagnostics.

Lean Burn Engine Technology

Lean-burn engines operate with large amounts of excess air. The excess air absorbs heat during combustion reducing the combustion temperature and pressure, greatly reducing levels of NOx. Lean-burn design also provides longer component life and excellent fuel consumption.

Ease of Operation

Side covers on block allow for inspection of internal components

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Testing

Every engine is full-load tested to ensure proper engine performance

Gas Engine Rating Pro

GERP is a PC-based program designed to provide site performance capabilities for Cat® natural gas engines for the gas compression industry. GERP provides engine data for your site’s altitude, ambient temperature, fuel, engine coolant heat rejection, performance data, installation drawings, spec sheets, and pump curves.

Product Support Offered Through Global Cat Dealer

More than 2,200 dealer outletsCat factory-trained dealer technicians service every aspect of your petroleum engineCat parts and labor warrantyPreventive maintenance agreements available for repairbefore-failure optionsS•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine:- Internal engine component condition- Presence of unwanted fluids- Presence of combustion by-products- Site-specific oil change interval

Over 80 Years of Engine Manufacturing Experience

Over 60 years of natural gas engine productionOwnership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.- Cast engine blocks, heads, cylinder liners, and flywheel housings- Machine critical components- Assemble complete engine

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com

G3508 Standard Equipment

Air Inlet System
  • Remote air inlet adapters

Charging System
  • Battery chargers

Cooling System
  • Jacket water thermostats and housing — full opentemperature 98°C (208°F)
  • Jacket water pump — gear driven, centrifugal,non-self-priming
  • Aftercooler water pump — gear driven, centrifugal,non-self-priming
  • Aftercooler core for sea-air atmosphere
  • Aftercooler thermostats and housing — full opentemperature 35°C (95°F)
  • Aftercooler — raw water, cleanable

Exhaust System
  • Exhaust manifolds — watercooled

Flywheels & Flywheel Housings
  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation

Fuel System
  • Gas pressure regulator
  • Natural gas carburetor
  • Fuel gas shut-off valve (24V DC)

Instrumentation
  • Advisor panel
  • Advisor interconnect harness

Lubrication System
  • Crankcase breathers — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — shallow
  • Oil sampling valve
  • Turbo oil accumulator

Mounting System
  • Rails, engine mounting

Power Take-Offs
  • Front housing — two-sided
  • Front lower LH accessory drive

Protection System
  • Electronic shutoff system
  • Gas shutoff valve

General
  • Paint — Cat yellow
  • Vibration damper and guard

G3508 Optional Equipment

Air Inlet System
  • Remote air inlet adapters

Charging System
  • Battery chargers

Cooling System
  • Aftercooler core
  • Thermostatic valves
  • Connections
  • Expansion and overflow tank
  • Water level switch gauge

European Certifications
  • European Union certifications

Exhaust System
  • Flexible fittings
  • Elbows
  • Flanges
  • Flange and exhaust expanders
  • Mufflers

Fuel System
  • Fuel filter

Instrumentation
  • Customer communication modules

Lubrication System
  • Oil filters — duplex
  • Oil pan drain
  • Oil level regulator
  • Sump pumps
  • Lubricating oil

Mounting System
  • Rails
  • Vibration isolators

Power Take-Offs
  • Auxiliary drive shaft
  • Auxiliary drive pulleys
  • Front stub shaft
  • Pulleys

Protection System
  • Gas valve
  • Explosion relief valves

Starting System
  • Air pressure regulator
  • Air silencer
  • JW heaters
  • Battery sets (24-volt dry)
  • Battery accessories

General
  • Flywheel guard removal
  • Engine barring group
  • Premium 8:1 pistons

Cat® Dealer Service

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