Graco 15D325 By-Pass Tube
The Graco 15D325 By-Pass Tube safely redirects excess fluid back to the reservoir, maintaining stable pressure and protecting the pump in Graco sprayer systems.
- OEM tube for Graco pump assemblies
- Ensures smooth recirculation and prevents over-pressurization
- Durable, flexible tubing for long-term use
- Easy to install and maintain
Graco 15D325 By‑Pass Tube
The Graco 15D325 By‑Pass Tube is an essential OEM component for high‑pressure fluid systems, enabling controlled bypass of excess fluid back into the reservoir. It helps maintain stable pressure and protects the pump by routing overflow or recirculated material.
Key Features
- By‑pass design to safely redirect excess fluid under pressure
- Durable tubing built to handle repeated flow cycles
- OEM-specified for Graco systems — guarantees compatibility
- Helps maintain consistent pump pressure and reduces stress on internal components
Technical Specifications
| Part Number | 15D325 |
|---|---|
| Description | Tube, By‑Pass |
| Material | Reinforced flexible tubing (job‑site durable) |
| Role | Recirculation / overflow path for fluid under excess pressure |
Function & Role in the System
The by‑pass tube helps regulate internal fluid flow by allowing surplus fluid to return to the reservoir, preventing pressure spikes and reducing pump wear. By offering a bypass path, it supports smoother operation and avoids over‑pressurisation in dynamic or heavy‑use spray systems.
Applications & Compatibility
The 15D325 is used in Graco fluid-handling systems and sprayers where a by-pass path is required, such as in certain airless or texture pump modules. It is listed in OEM parts catalogs as a by-pass line component.
- Commonly used in Graco pump assemblies that include pressure control or return circuits
- Part of maintenance kits for systems requiring fluid recirculation to the supply container
Installation & Maintenance
- Ensure proper routing: install the tube so that it smoothly directs returning fluid back to the container without sharp bends.
- Inspect the tube regularly for cracks, leaks or fatigue, especially in high‑cycle or high-pressure operations.
- Secure all clamps and fittings to prevent vibration‑related loosening.
- Replace the tube if signs of wear or bulging appear — a compromised bypass line can lead to unstable pressure or fluid loss.
Frequently Asked Questions
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