Tee, Slip x Slip x FPT PVC Schedule 40 6" x 6" x 2-1/2" (402-529)

The 6" x 6" x 2-1/2" PVC Schedule 40 Tee (Slip x Slip x FPT) is a mixed-connection reducing tee designed for commercial and municipal PVC piping systems that require a moderate-sized, threaded branch takeoff from a larger permanent solvent-weld main run. With 6-inch slip socket connections on both run ends and a 2-1/2-inch female NPT threaded connection on the branch outlet, this fitting delivers a size reduction and a connection type transition in a single fitting body — the 6-inch slip run installs permanently into the piping system via solvent cement, while the 2-1/2-inch FPT branch accepts any standard male NPT fitting for a threaded, serviceable connection that can be broken and reassembled without cutting into or disturbing the cemented main.

The Schedule 40 designation places this fitting in a different service category than the mixed-connection Schedule 80 tees previously described in this catalog. Where Schedule 80 mixed-connection tees (802-420, 802-421, 802-422) are specified for industrial process piping, chemical handling, and high-pressure systems, the Schedule 40 version is the appropriate choice for commercial irrigation, municipal water distribution, large commercial plumbing, and other applications where the operating pressures and chemical exposure conditions fall within Schedule 40's rated service range. The thinner Schedule 40 wall is not a compromise in these applications — it is the correct specification, and the fitting's pressure rating is fully adequate for the systems where it is typically installed.

The 6-inch run size positions this fitting in large-diameter commercial and municipal piping — mainlines, distribution headers, and primary supply mains where 6 inches is the standard pipe size for the primary conveyance function. The 2-1/2-inch FPT branch is a mid-range branch size that balances flow capacity with fitting practicality: larger than the small-bore instrument or injection taps served by a 1-inch or 2-inch branch, but smaller than a full distribution lateral served by a 3-inch or 4-inch branch. In practice, the 2-1/2-inch FPT branch most commonly connects a moderate-capacity valve assembly, a filter or strainer inlet, a pressure gauge manifold, a chemical injector header, or a secondary supply line that requires a threaded interface for routine access and serviceability.

The female NPT thread on the branch accepts any standard 2-1/2-inch male NPT fitting directly — a ball valve, a union, a strainer, a pressure gauge assembly, or a threaded nipple — without requiring a separate threaded adapter in the branch line. All three connections install via PVC solvent cement on the run ends and standard NPT thread sealant on the branch. Manufactured to ASTM D2466 standards and compatible with Schedule 40 PVC pipe on the run ends and standard NPT threaded fittings on the branch.

Specifications:

Industries & Applications:

• Large-Scale Irrigation & Agricultural Systems — The most common commercial application for this fitting; used in 6-inch irrigation mainlines where a 2-1/2-inch FPT branch provides a threaded connection point for a filter station, pressure regulator assembly, chemical injector header, or zone valve body requiring periodic maintenance access without disturbing the permanently cemented 6-inch main
• Municipal Water Distribution — Specified in 6-inch municipal distribution mains where a 2-1/2-inch threaded branch provides a service connection point, hydrant lateral tap, meter assembly connection, or pressure monitoring port that requires a threaded interface for installation, removal, and periodic testing without cutting into the main
• Commercial Plumbing & Mechanical Systems — Applied in large commercial building water mains and mechanical room distribution headers where a 6-inch primary supply requires a 2-1/2-inch threaded branch for a secondary supply circuit, pressure relief connection, or equipment supply line that must remain serviceable for routine maintenance and adjustment
• Pump Bypass & Recirculation Systems — Incorporated in pump discharge headers where a 2-1/2-inch FPT branch provides a bypass line, recirculation return, or pressure relief connection — sized to handle moderate bypass flow while the 6-inch main carries the primary pump discharge volume
• Water & Wastewater Treatment — Applied in treatment plant distribution piping where 6-inch Schedule 40 mains require a 2-1/2-inch threaded branch for chemical dosing connections, filter bypass lines, sample ports, or secondary distribution to equipment clusters requiring more flow capacity than a 2-inch branch would allow
• Swimming Pool & Aquatics — Used in large commercial aquatic facility recirculation mains where a 6-inch primary circulation loop requires a 2-1/2-inch threaded branch for a filter bypass, chemical feeder connection, or secondary circulation circuit serving a defined zone of the facility's water treatment system