Graco 113786 Male Tee Fitting – Overview & Compatibility
The Graco 113786 Male Tee Fitting is a precision-engineered, 3‑port connector designed for high-pressure airless spray systems. With its **3/8″ NPT male threads**, this durable fitting allows branching of fluid lines while maintaining consistent pressure and flow, making it an ideal component in professional and industrial Graco applications.
Key Features
- 3/8″ NPT male connections on all three ports, ensuring secure hose integration.
- Carbon‑steel (cst) construction for rugged durability under demanding conditions.
- Compact tee design, minimizing dead volume and facilitating manifold setups.
- Excellent chemical compatibility for high-performance coatings.
- Designed to handle high fluid pressures in Graco proportioning or spray packages.
Compatible Machines
This fitting is explicitly listed in Graco’s parts manuals for several **Triton 1:1 Spray Package** models. :contentReference[oaicite:0]{index=0}
- Graco Triton Wall‑Mount Package – Model **233487** (Aluminum pump, no gun) :contentReference[oaicite:1]{index=1}
- Graco Triton Wall‑Mount Package – Model **233489** (Aluminum pump, air spray gun) :contentReference[oaicite:2]{index=2}
- Graco Triton Wall‑Mount Package – Model **233491** (Aluminum pump, HVLP gun) :contentReference[oaicite:3]{index=3}
- Graco Triton Wall‑Mount Package – Model **233748** (Aluminum pump, PRO Xs2 electrostatic gun) :contentReference[oaicite:4]{index=4}
- Graco Triton Wall‑Mount Package – Model **233749** (Aluminum pump, PRO Xs3 electrostatic gun) :contentReference[oaicite:5]{index=5}
Why Choose the 113786 Tee
This tee fitting is more than just a connector—it plays a vital role in maintaining fluid system integrity. Its robust build resists fatigue and corrosion, while the standard NPT threads make it easy to integrate into existing Graco hose and manifold assemblies. It's especially useful when you need to branch fluid lines or set up redundant paths in a high‑output spray system.
Technical Specifications
| Specification |
Detail |
| Thread Type |
3/8″ NPT (male) |
| Material |
Carbon Steel (cst) |
| Ports |
3‑way “Tee” |
| Typical Use |
Manifold / branch fitting in Graco spray packages |
Installation Tips
- Apply a suitable thread sealant (compatible with your fluid) on the male threads to prevent leaks.
- Torque carefully to avoid damaging threads or causing galling.
- Flush your system after installation to remove any debris from machining.
- Inspect periodically for leaks or corrosion, especially when using aggressive coatings.
Frequently Asked Questions
The 113786 uses 3/8″ NPT male threads on all three ports, which is standard in many Graco fluid assemblies.
The 113786 is made from **carbon‑steel**, not stainless steel. While it’s very durable, for corrosive or solvent‑rich fluids you may want to verify chemical compatibility or consider a stainless alternative.
Use a compatible thread sealant on the male threads before installing. Torque the fitting properly, and then flush the system after installation to clear any debris or sealant residue.
