The Caterpillar 7E-1561 Butterfly Plate is a precision-calibrated internal engine fuel and air management component. It is installed within governor control linkages, throttle groups, and gas pressure regulator groups to accurately vary air or fuel system openings, providing precise timing and regulation over engine speeds and fluid delivery.
1. Core Dimensions & Weight
- Part Type Profile: Butterfly Valve Plate / Governor Control Linkage Disk.
- Shape Profile: Circular flat-disk throttle plate.
-
Net Weight: Approximately 0.03 kg (0.07 lbs).
2. Material & Operational Specs
-
Material Grade: Premium high-durability alloy or brass matrix built to precise manufacturing standards to prevent structural flexing.
-
Flow Regulation: Engineered to control fluid/air passage velocity across fine opening diameters, preventing lean or rich fuel-to-air delivery drops.
-
Endurance: Designed with high resistance against high-frequency vibration, friction-induced edge wear, and continuous gas stream erosion.
3. Equipment & Engine Compatibility
This butterfly throttle plate is heavily utilized within the gas pressure regulators, carburetor assemblies, and throttle groups of large-bore Caterpillar gaseous-fueled engines:
- Gas Engine Configurations: CAT G3512 and G3516 series big-bore industrial gas power blocks.
- Power Generation Modules: Integrated natively into Caterpillar SR4 and SR4B engine generator sets and alternator packages.
-
System Group Attachments: Functions as a vital internal component for the 7E-1586 Throttle Group, as well as the 7E-3404, 7E-8190, and 100-8227 Gas Pressure Regulator Groups.
4. Part Cross-References
- Alternative Part Names: Fly, Throttle Plate, Butterfly Valve.
- Alternative Part Numbers: 7E1561, 7E-1561.
