G3520B

Overview

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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Engine Specifications
Minimum Rating1104bkW
Maximum Rating1286bkW
EmissionsNSPS Site Compliant Capable
Ignition, ProtectionADEM™ 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
Engine Design
- Built on G3500 LE 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 at lower site air densities (high altitude/hot ambient temperatures) - Higher power density improves fleet management - Quality engine diagnostics - Detonation-sensitive timing control for individual cylinders
Ultra Lean Burn Technology (ULB)
ULB technology uses an advanced control system, a better turbo match, improved air and fuel mixing, and a more sophisticated combustion recipe to provide: - Lowest engine-out emissions - Highest fuel efficiency - Improved altitude and speed turndown - Stable load acceptance and load rejection
Emissions
- Meets U.S. EPA Spark Ignited Stationary NSPS emissions for 2010 and some non-attainment areas - Lean air/fuel mixture provides best available emissions and fuel efficiency for engines of this bore size
Advanced Digital Engine Management
ADEM A3 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM A3 has improved: user interface, display system, shutdown controls, and system diagnostics.
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 web-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 outlets Cat factory-trained dealer technicians service every aspect of your petroleum engine Cat parts and labor warranty Preventive maintenance agreements available for repair-before-failure options S•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 production Ownership 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.
Specifications
Engine Specifications
Minimum Rating1104bkW
Maximum Rating1286bkW
EmissionsNSPS Site Compliant Capable
Ignition, ProtectionADEM™ A3
Equipment
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
Benefits & Features
Engine Design
Ultra Lean Burn Technology (ULB)
Emissions
Advanced Digital Engine Management
Full Range of Attachments
Testing
Gas Engine Rating Pro
Product Support Offered Through Global Cat Dealer
Over 80 Years of Engine Manufacturing Experience
Web Site
Documents & Links
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