SprayTech part 0276455 is an air cap, set no. 4 designed for use with HVLP spray guns to direct compressed air for atomizing coatings. As part of a projector set, this precision component works with the fluid nozzle to shape the spray pattern and break material into a fine, consistent mist. A damaged, worn, or clogged air cap can cause poor atomization, an uneven pattern, or spitting. Replacing the air cap restores proper spray performance and finish quality on SprayTech HVLP Maxum II sprayers.
| Part Number | 0276455 |
|---|---|
| Part Description | Air Cap, Set No. 4 |
| Brand | SprayTech |
| Fits | SprayTech HVLP Maxum II Spray Guns |
| Condition | New |
The 0276455 Air Cap, Set No. 4 is a precision component for SprayTech HVLP Maxum II spray guns. As part of a complete projector set—which includes the needle assembly, fluid nozzle, and air cap—this air cap directs compressed air through precisely engineered passages to atomize coating material into a fine, uniform spray pattern [citation:1]. Working in concert with the fluid nozzle, the air cap determines the shape, width, and consistency of the spray fan.
A properly functioning air cap is essential for achieving professional-quality finishes. Damage to the air cap horns, clogged air passages, or general wear can result in poor atomization, pattern distortion, spitting, or tails in the spray. Replacing a worn or damaged air cap restores optimal spray performance and ensures consistent, high-quality results.
| Air direction | Channels compressed air to atomize coating material |
|---|---|
| Pattern shaping | Determines spray fan width and uniformity |
| Atomization | Breaks fluid into fine particles for smooth application |
| Material delivery | Works with fluid nozzle to control material-air mixing |
| Damaged horns | Dings or distortion that affect spray pattern |
|---|---|
| Clogged air holes | Blockages that cannot be cleaned thoroughly |
| Poor atomization | Spitting, tails, or uneven pattern despite cleaning |
| Worn finish | Surface wear affecting air flow characteristics |
SprayTech part 0276455 is compatible with the following SprayTech HVLP spray guns. Always confirm fitment using the correct parts diagram for your exact model.
| SprayTech Model | Component |
|---|---|
| SprayTech HVLP Maxum II | Air Cap, Set No. 4 |
| SprayTech HVLP Maxum II (all variants) | Air Cap, Set No. 4 |
When replacing the air cap, consider inspecting or replacing these associated components to ensure optimal gun performance. A complete projector set includes the needle assembly, fluid nozzle, and air cap [citation:1].
Matched fluid nozzle ensures proper atomization with the air cap.
A damaged or cross‑threaded ring can cause air leaks and poor performance.
Works with fluid nozzle to control material flow [citation:1].
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