Bullhead Tee, Slip x Slip x Slip PVC Schedule 40 1" x 1" x 1-1/4" (401-132)

This 1" x 1" x 1-1/4" Schedule 40 PVC Bullhead Tee (Slip x Slip x Slip) provides a three-way solvent-cement junction in which the perpendicular branch outlet is intentionally larger than both inline run ends — the defining characteristic of a bullhead tee and the inverse of a standard reducing tee configuration. Constructed in white Schedule 40 PVC, it is engineered for applications where flow from two 1" lines is collected into a single 1-1/4" outlet, or where a 1-1/4" supply must feed two smaller 1" downstream run legs from a common body, with a modest 1.25:1 branch-to-run enlargement that preserves near-full flow capacity throughout the assembly.

The two 1" slip socket run ends form the inline portion of the tee and accept 1" PVC pipe for permanent solvent-cement bonds, while the 1-1/4" slip socket branch outlet accepts 1-1/4" PVC pipe for a permanent solvent-cement bond perpendicular to the run. This bullhead configuration is the more modest of the two confirmed 1" run inlet bullhead tee entries — providing a smaller branch enlargement than the 401-133 (1" x 1" x 1-1/2" Bullhead Tee), which serves higher-flow collection scenarios; the 401-132 is the correct choice when the combined flow from two 1" lines requires only a slight upsize at the collection point rather than a full step up to 1-1/2". Where a standard reducing tee steps the branch down from the run diameter, the bullhead tee steps it up — making it a purpose-specific fitting that is not interchangeable with standard or reducing tee configurations and should be selected explicitly when the hydraulic design calls for a larger branch outlet at the three-way junction. At the 1" x 1-1/4" combination, this modest enlargement accommodates the combined volume of two 1" distribution or return lines without the velocity increase and pressure drop that a same-size or reducing branch would produce at the collection point, while keeping the branch diameter closer to the run diameter than the more aggressive 1-1/2" branch in the 401-133.

Rated to 370 psi at 73°F (governed by the 1-1/4" branch end), this tee is suited for standard commercial and light industrial pressure service. Its PVC composition provides excellent resistance to corrosion, scale, chlorinated water, and a broad range of chemical exposures, making it a reliable long-term alternative to metal fittings in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket at each port per ASTM D2564 procedures, using a primer appropriate for the pipe and fitting schedule. Insert pipe fully into each socket and maintain a quarter-turn during assembly for even cement distribution across the joint surface. Allow adequate cure time before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Collects flow from two 1" lateral supply or return lines into a 1-1/4" mainline outlet at pump suction headers, filter inlet manifolds, and central return assemblies in agricultural and municipal irrigation systems where a modest branch enlargement accommodates the combined volume from both 1" run legs without the larger step-up required by the 401-133 (1-1/2" branch)
• Commercial Plumbing — Consolidates flow from two 1" branch lines into a 1-1/4" collection main at central return manifolds, drain collection assemblies, and distribution headers in commercial building water systems where combined flow from two 1" branches requires only a modest outlet enlargement to maintain adequate velocity and pressure balance at the collection junction
• Industrial Process Piping — Serves as a hydraulically sized collection junction at pump suction headers, process water return manifolds, and chemical distribution collection points in water treatment, chemical processing, and manufacturing facilities where the modest bullhead configuration accommodates combined flow from two 1" lines into a 1-1/4" common outlet without over-sizing the collection branch
• Chemical Handling — Provides a corrosion-resistant, modestly enlarged branch collection junction in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, at chemical distribution return headers and dosing system collection manifolds where two 1" lines must consolidate into a 1-1/4" outlet with minimal velocity change through the collection branch
• Water Treatment & Aquaculture — Used in recirculating system collection headers, filter feed manifolds, and tank return assemblies where two 1" return or supply lines must consolidate into a 1-1/4" common outlet — the most modest confirmed bullhead branch enlargement at the 1" run inlet, appropriate where a minimal step-up at the collection point maintains system balance without the larger branch required by the 401-133
• HVAC & Mechanical Systems — Consolidates flow from two 1" branch lines into a 1-1/4" collection main at central return manifolds and distribution header collection points on cooling tower distribution headers, chilled water return loops, and chemically treated water systems where the modest bullhead branch enlargement accommodates combined return flow within the Schedule 40 pressure class