

The Graco 166590 Fitting Elbow Street High Press is a high-pressure 90° street-elbow used in industrial fluid-handling systems and proportioner/heater setups.
This Graco 166590 Fitting Elbow Street High Press is used in select high-pressure industrial Graco systems. Below are the known machines where this part is listed in official schematics:
The Graco 166590 Fitting Elbow Street High Press is a 90-degree street-elbow designed for high-pressure fluid applications. It is used in industrial fluid-handling systems to redirect flow while maintaining pressure integrity. The fitting is commonly found in proportioner systems and high-pressure heaters where reliability and secure connections are required.
| Part Number | 166590 |
|---|---|
| Type | Street Elbow – High Pressure |
| Angle | 90° |
| Application | High-pressure fluid systems |
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