Reducing Tee, Slip x Slip x Slip 10" x 10" x 4" (C601-624)

The 10" x 10" x 4" PVC Schedule 40 Reducing Tee (C601-624) is a large-diameter, three-port branch fitting that maintains full 10" flow capacity through the run while tapping off a reduced 4" branch outlet — all in a single, permanently solvent-welded 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 40 pipe at both diameters.

The significant size differential between the 10" run and the 4" branch makes this fitting a purpose-built solution for systems where a large primary main must serve a substantially smaller subsidiary line, monitoring port, chemical injection point, or zone supply header — without the pressure loss, leak risk, and installation complexity of a stacked-reducer-and-tee assembly. Consolidating the branch takeoff and the diameter reduction into a single molded fitting eliminates two or more intermediate joints, reduces the number of potential failure points in the system, and simplifies installation in large-diameter buried or concealed piping.

The concentric branch geometry ensures the 4" outlet is centered on the run axis, maintaining predictable flow dynamics at the branch junction and simplifying thrust block and support design in buried or restrained systems. In pressurized distribution applications, the molded taper at the branch inlet produces cleaner flow separation than fabricated alternatives, reducing turbulence-driven erosion and pressure loss at the takeoff point.

Built to ASTM D2466 standards, the C601-624 provides the dimensional consistency required for reliable large-diameter solvent weld joints — where socket fit quality and concentricity directly determine joint integrity and long-term leak-free performance.

Specifications:

Industries & Applications:

Agricultural & Large-Scale Irrigation Distribution In large agricultural irrigation systems, 10" mains carry the primary flow volume from pump stations to field distribution zones. The C601-624 allows a 4" branch takeoff directly off the main for zone sub-headers, filter station bypasses, or fertigation injection points — without reducing the 10" run capacity or requiring a separate reducer fitting downstream of a full-size tee. The all-slip design is well suited to buried mainline installations where a permanent, fully solvent-welded assembly is preferred over threaded connections subject to soil movement and vibration loosening.

Municipal Water Distribution & Infrastructure Municipal distribution mains use reducing tees at service lateral connections, pressure zone boundary transitions, and inline equipment taps where a smaller branch is needed off a large-diameter primary main. A single molded reducing tee at these points is dimensionally cleaner and more hydraulically efficient than a full-size tee followed by a reducer bushing, and eliminates an extra joint in buried infrastructure where long-term leak-free performance is the overriding priority.

Industrial Process Piping & Cooling Water Systems Industrial facilities running 10" process water or cooling water supply mains frequently need to branch off smaller-diameter lines to individual equipment connections, bypass loops, or sampling points. The 10" x 10" x 4" reducing tee consolidates the branch takeoff and size transition at the tap point, keeping the equipment connection piping clean and the mainline joints minimal in congested mechanical spaces.

Pump Station Headers & Distribution Manifolds Pump station discharge headers in irrigation, municipal, and industrial applications often distribute flow to multiple zones or circuits of varying sizes from a single large-diameter header. The C601-624 allows a 4" circuit to branch directly off the 10" discharge header in a single fitting, reducing the fitting count in the manifold assembly and simplifying the header layout in pump vault or station environments.

Drainage & Stormwater Collection Large stormwater collection systems use reducing tees at points where smaller collector pipes tie into primary conveyance mains. The 4" branch inlet on a 10" run is appropriate for capturing lateral inflow from parking lot drains, area drains, or smaller collector runs before they join the primary stormwater trunk line — with the all-slip solvent weld construction providing a permanent, root-resistant joint in buried drainage infrastructure.

Water & Wastewater Treatment Plant Piping Treatment plant process piping uses large-diameter reducing tees at chemical dosing injection points, sample tap connections, and bypass line takeoffs off primary influent and effluent headers. The 4" branch size accommodates chemical injection quills, flow measurement instruments, and bypass isolation valves that are standard components in treatment plant process control architecture.