

Hydra / PowrLiner / PowrTex / PowrTwin part 569-016 is a ball designed to function as a check valve component in fluid systems on compatible sprayer models. This precision spherical component seats against a valve seat to create a one-way seal, allowing material to flow in one direction while preventing backflow. Replacing a worn, pitted, or damaged ball restores proper valve operation and ensures reliable pump performance.
| Part Number | 569-016 |
|---|---|
| Part Description | Ball |
| Brand | Hydra / PowrLiner / PowrTex / PowrTwin |
| Fits | Hydra M 2000, 4000, Hydra Pro Super; PowrLiner 4955, 6955, 8955, 4000, 4900, 4900 XLT, 5000, 6000, 6900 XLT SP, 6900 XLT, 4950, 8900 XLT SP, 8900 XLT, 6950; PowrTex 12000SV, 6900SF; PowrTwin 12000 GHD, 12000 XLT, 12000 GH, 12000 Plus DI, 3500, 4500, 3500 50th Anniversary, 4900 XLT, 4900 GH, 6900 XLT, 6900, TM 8900 XLT, 6900 GH, 8900 GH |
| Condition | New |
The 569-016 Ball is a precision spherical component used as a check valve element in the fluid systems of compatible Hydra, PowrLiner, PowrTex, and PowrTwin sprayer models. It seats against a valve seat to create a one-way seal, allowing material to flow in one direction while preventing backflow.
In ball check valves, the ball is held against the seat by gravity, pressure differential, or spring force. When pressure on the inlet side exceeds the holding force, the ball lifts off the seat, allowing material to flow through. When pressure equalizes or reverses, the ball seats back into the valve seat, creating a positive seal that prevents backflow. The ball must be perfectly spherical and smooth to create a reliable seal and must be made of materials compatible with the coatings being sprayed.
Over time, check valve balls can become worn, pitted, or develop flat spots due to the constant impact against the seat and the flow of material. Contaminants in the fluid can also cause surface damage. A worn or damaged ball can allow material to leak past, resulting in pressure loss, reduced pump efficiency, and inconsistent spray performance. Replacing a worn ball restores proper valve sealing, ensuring reliable one-way flow control and consistent system pressure.
| One-way flow control | Seats against valve seat to prevent backflow |
|---|---|
| Pressure maintenance | Helps maintain system pressure by sealing tightly |
| Check valve operation | Lifts off seat to allow forward flow when pressure differential exists |
| Pressure loss | System cannot maintain operating pressure |
|---|---|
| Backflow issues | Material flows backward through the valve |
| Visible wear / pitting | Ball surface is damaged, pitted, or has flat spots |
| Inconsistent flow | Fluctuations in material delivery |
Part 569-016 is compatible with the following sprayer models. Always verify fitment using your equipment's parts diagram before ordering.
| Model | Component |
|---|---|
| Hydra M 2000 | Ball |
| Hydra M 4000 | Ball |
| Hydra Pro Super | Ball |
| PowrLiner 4955 | Ball |
| PowrLiner 6955 | Ball |
| PowrLiner 8955 | Ball |
| PowrLiner 4000 | Ball |
| PowrLiner 4900 | Ball |
| PowrLiner 4900 XLT | Ball |
| PowrLiner 5000 | Ball |
| PowrLiner 6000 | Ball |
| PowrLiner 6900 XLT SP | Ball |
| PowrLiner 6900 XLT | Ball |
| PowrLiner 4950 | Ball |
| PowrLiner 8900 XLT SP | Ball |
| PowrLiner 8900 XLT | Ball |
| PowrLiner 6950 | Ball |
| PowrTex 12000SV | Ball |
| PowrTex 6900SF | Ball |
| PowrTwin 12000 GHD | Ball |
| PowrTwin 12000 XLT | Ball |
| PowrTwin 12000 GH | Ball |
| PowrTwin 12000 Plus DI | Ball |
| PowrTwin 3500 | Ball |
| PowrTwin 4500 | Ball |
| PowrTwin 3500 50th Anniversary | Ball |
| PowrTwin 4900 XLT | Ball |
| PowrTwin 4900 GH | Ball |
| PowrTwin 6900 XLT | Ball |
| PowrTwin 6900 | Ball |
| PowrTwin TM 8900 XLT | Ball |
| PowrTwin 6900 GH | Ball |
| PowrTwin 8900 GH | Ball |
When replacing the ball, these associated components are often inspected or replaced at the same time.
The surface the ball seals against; inspect for wear, pitting, or damage.
Components that guide and retain the ball; check for wear or damage.
The component that contains the ball and seat; inspect for damage.