Part 940-553 is a valve ball used in the fluid sections of multiple airless paint sprayers to regulate one-way material flow. Proper valve ball function is critical for pressure retention, priming reliability, and consistent spray performance.
Components included:
| Part Number | 940-553 |
|---|---|
| Part Description | Valve Ball |
| Function | One-way fluid control / pressure retention |
| Fits | Multiple Admiral, Commander, Hydra, PowrLiner & PowrTwin models |
| Condition | New |
The 940-553 Valve Ball is a precision sealing component used within the inlet and outlet valve assemblies of many airless paint sprayers. The valve ball opens and closes during pump cycling to control material flow and maintain proper operating pressure.
A worn, pitted, or contaminated valve ball can prevent proper sealing, leading to pressure loss, poor priming, or pump surging. Replacing the valve ball restores correct valve sealing and consistent pump performance.
| Flow control | Regulates one-way material movement |
|---|---|
| Pressure sealing | Helps the pump hold operating pressure |
| Pump efficiency | Supports consistent priming and output |
| Pressure loss | Pump will not maintain pressure |
|---|---|
| Poor priming | Difficulty drawing material |
| Surface damage | Pitting, flat spots, or corrosion |
| Routine service | During valve or fluid section maintenance |
Part 940-553 is compatible with the following airless paint sprayers. Always confirm valve size and placement using the correct parts diagram.
| Sprayer Model | Component |
|---|---|
| Admiral Airless Sprayer | Valve ball |
| Commander Airless Sprayer | Valve ball |
| Hydra M | Valve ball |
| Hydra Pro Super | Valve ball |
| Hydra Pro 2000 | Valve ball |
| Hydra Pro 4000 | Valve ball |
| PowrLiner 3000 | Valve ball |
| PowrLiner 3500S | Valve ball |
| PowrLiner 4000 | Valve ball |
| PowrLiner 4500 | Valve ball |
| PowrLiner 4900 | Valve ball |
| PowrLiner 4900 XLT | Valve ball |
| PowrLiner 5500 | Valve ball |
| PowrLiner 4955 | Valve ball |
| PowrLiner 6955 | Valve ball |
| PowrLiner 6900 XLT | Valve ball |
| PowrLiner 6950 | Valve ball |
| PowrLiner 8955 | Valve ball |
| PowrTwin 3500 | Valve ball |
| PowrTwin 4500 | Valve ball |
| PowrTwin 4900 | Valve ball |
| PowrTwin 6900 | Valve ball |
| PowrTwin 12000 HD | Valve ball |
| PowrTwin 12000 GHD | Valve ball |
| PowrTwin 12000 XLT DI | Valve ball |
| PowrTwin 12000 Plus DI | Valve ball |
| PowrTwin 12000 XLT | Valve ball |
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