

Precision-machined OEM adapter designed to connect M18 × 1.5 threaded components to compatible fluid or air system fittings.
The Graco 15H980 Adapter M 18 × 1.5 is a precision-machined transition fitting created to link components with an M 18 × 1.5 metric thread to fluid or air systems designed around different connection standards. It enables seamless integration of metric-threaded parts into a high-pressure sprayer or fluid handling system, maintaining system integrity under demanding conditions.
| Feature | Details |
|---|---|
| Thread Conversion | Allows an M 18 × 1.5 male connection to mate with another standard size |
| Construction Quality | Durable, high-strength metal designed for high-pressure systems |
| Sealing Surface | Precision-machined threads ensure leak-free coupling |
| Versatility | Fits many fluid- or air-line components needing metric-to-imperial compatibility |
Before installing the 15H980 adapter, make sure system pressure is relieved and components are at rest. Inspect thread surfaces for damage or debris. Apply the correct sealant or tape if required by your equipment’s specifications, then torque the adapter to the specified value. Periodically check for signs of wear, threading damage or leaks, especially if the system is frequently changed or serviced.
Choosing the genuine 15H980 adapter ensures exact thread profile, proper material strength and torque capability designed for your system’s demands. This reduces the risk of connection failure, fluid leaks or mismatches that can compromise performance, safety or maintenance intervals.
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