

OEM Graco 278825 Cup Casting Air Valve used for controlling compressed air flow in spray gun and air valve assemblies. Ensures reliable air regulation and consistent spray performance.
Based on available OEM parts listings, Graco 278825 Cup Casting Air Valve is supplied as an original replacement component used in Graco air control assemblies. Graco does not publish a single fixed model list for this part; it is referenced in multiple service diagrams for the following equipment types:
The Graco 278825 Cup Casting Air Valve is an OEM precision-machined air control component designed to regulate compressed air flow within Graco spray and coating equipment. The cast cup body forms the main housing of the valve, ensuring consistent air passage, long service life, and reliable sealing under continuous operating pressure. This part is commonly installed in air valve assemblies where accurate on/off or flow control is critical for spray pattern stability and trigger response.
| Part Number | 278825 |
|---|---|
| Product Name | Graco Cup Casting Air Valve |
| Type | Air Control / Valve Housing Component |
| Application | Compressed air regulation in spray and coating equipment |
| Manufacturer | Graco (OEM Replacement Part) |
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