Tee, Slip x Slip x Slip PVC Schedule 80 6" x 1-1/4" (801-526)

The 6" x 1-1/4" PVC Schedule 80 Reducing Tee (801-526) is a heavy-duty, permanently solvent-welded branch fitting that maintains full 6" flow capacity through the run while delivering a compact 1-1/4" branch outlet — all in a single, Schedule 80-rated assembly. All three ports are configured as slip (socket) connections, accepting standard PVC solvent cement for a fast, structurally sound, pressure-rated bond directly to Schedule 80 pipe at both diameters.

The pronounced size differential between the 6" run and the 1-1/4" branch defines this fitting's role in a piping system. Unlike a standard reducing tee where the branch serves a meaningful secondary flow circuit, the 801-526 is purpose-built for applications where the primary 6" main must accommodate a small-diameter ancillary connection — a chemical injection port, pressure monitoring leg, sample tap, instrument connection, vent line, or small-volume bypass — without interrupting the main flow path or requiring a separate full-size tee followed by a stacked reducer assembly to reach the smaller outlet diameter.

Consolidating that size step — from 6" run to 1-1/4" branch — into a single molded fitting eliminates the intermediate joints, extra fittings, and installation complexity that a fabricated assembly would require. In congested mechanical spaces, buried piping, or corrosive environments where minimizing joint count and fitting footprint is a design priority, the 801-526 delivers the branch connection cleanly and efficiently in the smallest possible assembly envelope.

Schedule 80 construction provides the thicker walls, elevated pressure ratings, and chemical resistance required in the industrial and process environments where a 6" main with a small-diameter ancillary branch is most commonly found. The dark gray PVC color is the established industry identifier for Schedule 80, providing immediate visual confirmation that the system is built to industrial-grade specifications throughout. The permanent all-slip assembly is the correct choice for enclosed, buried, or chemically aggressive installations where joint access after commissioning is limited and long-term integrity without mechanical components is the design requirement.

Built to ASTM D2467 standards, the 801-526 delivers the dimensional precision and socket concentricity required at both the 6" run ports and the 1-1/4" branch socket — where the significant size differential between the two socket diameters in a single molded body demands precise manufacturing tolerances to ensure reliable solvent weld engagement at both ends simultaneously.

Specifications:

Industries & Applications:

Chemical Processing & Injection Systems Chemical injection is one of the most common applications for a small-branch reducing tee off a large-diameter process main. The 1-1/4" branch on the 801-526 provides a dedicated injection port for reagent feeds, pH adjustment chemicals, scale inhibitors, biocides, and corrosion control compounds directly into a 6" process or water distribution header — without reducing the main flow path or requiring a separately fabricated injection stub assembly. The all-PVC Schedule 80 construction resists the full range of corrosive injection media that would rapidly degrade metallic fittings at the injection point.

Pressure Monitoring & Instrumentation Taps Pressure gauges, transducers, and differential pressure instruments in large-diameter industrial piping systems require a small-diameter instrument tap off the primary main. The 1-1/4" branch of the 801-526 accommodates a gauge isolation valve and instrument connection directly off the 6" run, with the solvent-welded branch providing a permanent, leak-free instrument tap point in process headers where vibration or thermal cycling would challenge a mechanical tap fitting over time.

Water & Wastewater Treatment Plant Piping Treatment plant process headers use small-branch reducing tees for chemical dosing injection points, sample tap connections, pH probe ports, and dissolved oxygen sensor installations off large-diameter influent, effluent, and recirculation mains. The 1-1/4" branch size accommodates the small-diameter tubing and probe housings standard to treatment plant instrumentation, while the 6" Schedule 80 run handles the high-flow primary process stream without restriction.

Industrial Pump & System Vent Lines Large-diameter pump discharge and recirculation headers require small-diameter vent connections to release trapped air during system startup and prevent air-lock conditions in pressurized piping. The 801-526 provides a dedicated 1-1/4" vent branch off the 6" run, sized appropriately for an automatic air release valve or manual vent cock that purges the main during fill and commissioning without affecting the primary flow circuit.

Bypass & Recirculation Sampling Circuits Quality control and process monitoring in chemical manufacturing, water treatment, and industrial fluid processing require small-volume continuous sample streams drawn from primary process mains. The 1-1/4" branch provides a proportionally small sample circuit takeoff off the 6" primary header — enough flow for an inline analyzer, sample cooler, or grab sample port — without the pressure loss and flow disturbance that a larger branch takeoff would introduce to the main circuit.

Mining, Mineral Processing & Heavy Industrial Reagent feed headers, leach solution distribution mains, and process water supply lines in mining and mineral processing operations require small-diameter branch connections for chemical addition ports, flow measurement taps, and process monitoring instruments. The all-slip Schedule 80 construction withstands the highly acidic and caustic process solutions that characterize hydrometallurgical operations, with the permanent solvent-welded assembly providing the joint integrity required in buried or remote mining infrastructure where maintenance access is limited.

High-Pressure Irrigation & Agricultural Systems Large-scale commercial irrigation and fertigation systems running Schedule 80 mainlines at elevated operating pressures use small-branch reducing tees for fertigation injection ports, pH and EC monitoring instrument connections, and small-diameter air vent connections at high points in the mainline. The 1-1/4" branch accommodates standard fertigation injector fittings and instrument probe housings directly off the 6" supply main without additional reducer adapters at the injection point.