SprayTech part 0270499 is an outlet valve spring designed for the SprayTech AirCoat system (Model Number 0508074A). This spring provides the necessary force to close the outlet valve after each pumping cycle, ensuring proper one‑way flow and preventing backflow. Replacing a worn, fatigued, or broken spring restores consistent valve operation, maintains system pressure, and ensures reliable spray performance.
| Part Number | 0270499 |
|---|---|
| Part Description | Outlet Valve Spring |
| Brand | SprayTech |
| Fits | SprayTech AirCoat (Model Number 0508074A) |
| Condition | New |
The SprayTech 0270499 Outlet Valve Spring is a genuine OEM component used in the fluid section of the SprayTech AirCoat system (Model Number 0508074A). It applies consistent closing force to the outlet valve ball or poppet, ensuring the valve seals tightly after each pressure stroke. This precise spring tension is critical for maintaining system pressure, preventing material backflow, and enabling reliable priming.
Over time, valve springs can lose tension due to metal fatigue, become weak, or break from repeated compression cycles. A weakened or broken spring can cause the outlet valve to remain open or close slowly, resulting in pressure loss, erratic spray, and difficulty priming. Replacing with the correct 0270499 spring restores proper valve timing and ensures consistent performance.
| Valve closing force | Returns the outlet valve ball or poppet to the closed position |
|---|---|
| Pressure maintenance | Helps sustain system pressure by preventing backflow |
| Priming aid | Assists in creating the necessary suction for initial prime |
| Weak / lost tension | Spring no longer provides sufficient closing force |
|---|---|
| Broken / cracked | Visible damage that prevents proper valve operation |
| Corroded / rusted | Surface corrosion that can weaken the spring or contaminate fluid |
| After a valve failure | Replace the spring when servicing the valve seat and ball |
SprayTech part 0270499 is compatible with the following system. Always confirm fitment using the correct parts diagram for your exact model.
| Model | Component |
|---|---|
| SprayTech AirCoat (Model Number 0508074A) | Outlet Valve Spring |
When replacing the outlet valve spring, it is typical to inspect or replace other components in the valve assembly.
The seat provides the sealing surface; inspect for wear or pitting and replace if necessary.
The moving part that seals against the seat; replace as a matched set with the seat.
Check the inlet valve seat, ball, and spring for wear to ensure complete pump performance.
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