Product Overview – Graco 112536 Female QD Coupling
The Graco 112536 is a genuine OEM part listed as a “Coupling, Female, QD” (quick-disconnect). It is designed to provide a secure, fast-disconnect fluid or air connection for compatible Graco equipment.
Key Features
- Female quick-disconnect (QD) coupling.
- OEM Graco part number: 112536.
- Designed for fluid-handling or finishing applications (paint/coat/air systems) with matching QD male plug.
- Use genuine parts to ensure correct fit, performance and warranty compliance.
Compatible Machines
Below are some common machine types or series where this coupling is known to fit — always verify fitment with your exact machine serial number and manual.
- Graco finishing spray-guns or coating systems using QD coupling interface. For example, listings for 112536 reference usage with spray-gun assemblies.
- Graco G-Series lubrication/transfer pumps (when used with QD female coupling style) — although part number 121474 is more clearly documented for G-Series, some compatibility overlap may apply.
- Any Graco machine or accessory that specifies “Coupling, Female, QD – 112536” in its parts list (consult the parts manual for your particular model).
Technical & Usage Notes
| Specification |
Details |
| Part Number |
112536 |
| Type |
Female Quick-Disconnect Coupling |
| Compatible With |
Matching male QD plug of proper size and series |
| Applications |
Finishing/coating equipment, fluid handling, lubrication systems |
| Manufacturer |
Graco |
Installation & Fitment Tips
- Verify that the male QD plug on your machine matches the same series and size as the 112536 female coupling.
- Ensure the threads (if any) and sealing surfaces are clean and undamaged before assembly.
- Check the machine’s parts manual to confirm 112536 is listed for your exact model and serial range.
- Inspect O-rings or seals and replace if worn — a bad seal can cause leaks or poor performance.
- Never exceed the working pressure of the coupling or of the machine — compatibility is essential for safety and performance.
Frequently Asked Questions
“QD” stands for Quick-Disconnect. This coupling allows the user to quickly connect or disconnect the fluid/air line without tools, provided the matching plug is compatible.
While the coupling is listed for Graco equipment, you must verify that your specific G-Series pump model uses the 112536 part. Some G-Series pumps reference part number 121474 for a similar coupling. Always cross-check your machine’s parts list and ensure the male plug matches the QD type and threading.
Before installing, ensure:
• The old coupling is removed and the new one threads or mates correctly.
• The male plug is clean and free of damage.
• Seals or O-rings are in good condition.
• The system is depressurized before disconnection for safety.
• Installation follows the torque or thread guidelines in your machine’s manual.
For further technical assistance or confirmation of fitment, please refer to your machine’s service manual or contact a Graco authorised distributor.
