Bullhead Tee, Slip x Slip x Slip PVC Schedule 40 1/2" x 1/2" x 3/4" (401-074)

This 1/2" x 1/2" x 3/4" Schedule 40 PVC Bullhead Tee (Slip x Slip x Slip) provides a three-way all solvent-cement junction in which the perpendicular branch outlet is intentionally larger than both inline run ends — accepting 1/2" PVC pipe at both run ends for permanent solvent-cement bonds while providing a larger 3/4" slip socket branch outlet for a permanent solvent-cement bond to the downstream continuation. Constructed in white Schedule 40 PVC, it serves applications where combined flow from two 1/2" socket supply or return runs must collect into a single 3/4" socket outlet, or where a 3/4" socket supply must distribute into two smaller 1/2" socket downstream run legs, in all-socket cemented construction throughout.

The two 1/2" slip socket run ends accept 1/2" PVC pipe for permanent solvent-cement bonds forming the inline portion of the tee, while the 3/4" slip socket branch outlet accepts 3/4" PVC pipe for a permanent solvent-cement bond perpendicular to the run — the enlarged 3/4" branch accommodating the combined flow volume from both 1/2" run legs. This all-socket bullhead configuration is the correct choice when both the upstream 1/2" run assembly and the downstream 3/4" branch continuation are all-socket cemented PVC systems — distinct from the 402-074 (1/2" x 1/2" x 3/4" Slip x Slip x FPT bullhead, confirmed in this catalog session), which provides a 3/4" female-threaded branch outlet for receiving a male-threaded downstream component rather than accepting a socket pipe run; the 401-074 is specifically for assemblies where the enlarged 3/4" branch must continue as a cemented socket pipe run rather than connect to a threaded component. Both the Slip x Slip x Slip (401-074) and Slip x Slip x FPT (402-074) configurations serve the same 1/2" run x 3/4" branch bullhead function — the correct choice between them is determined entirely by whether the downstream 3/4" branch connection is a socket pipe run or a male-threaded component. At the 1/2" run x 3/4" branch combination, this bullhead tee most commonly appears in small-bore collection manifolds and flow consolidation assemblies where two dedicated 1/2" socket supply or return lines must consolidate into a continuing 3/4" socket distribution or return header; in drip irrigation zone consolidation assemblies where two 1/2" socket lateral supply runs must collect into a 3/4" socket zone supply continuation; and in instrument and chemical dosing distribution assemblies where combined 1/2" socket branch flows must continue as a 3/4" socket collection run downstream.

Rated to approximately 480 psi at 73°F (governed by the 3/4" slip 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. 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. Note that the branch outlet (3/4") and run ends (1/2") are different diameters — confirm pipe diameters before cementing each joint to avoid inserting the incorrect pipe size into either port. Allow adequate cure time before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Drip & Micro-Irrigation Systems — Collects flow from two 1/2" socket lateral supply or return runs into a continuing 3/4" socket zone supply header, distribution main, or collection return in drip and micro-irrigation systems where all-socket cemented construction is maintained throughout and combined flow from two 1/2" socket branches must continue as a 3/4" socket pipe run without any threaded interface at the collection point
• Irrigation & Water Distribution — Consolidates two 1/2" socket supply or return lines into a continuing 3/4" socket distribution header or pump suction approach in agricultural and residential irrigation systems where all-socket construction is specified throughout and the 3/4" socket branch outlet must continue as a cemented pipe run rather than connect to a male-threaded component at the flow consolidation point
• Chemical Handling — Provides a corrosion-resistant all-socket collection junction where two 1/2" socket chemical feed, dosing, or distribution lines must consolidate into a continuing 3/4" socket common header in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings — the all-socket cemented construction maintaining continuous chemical resistance at every joint throughout the collection assembly
• Industrial Process Piping — Collects flow from two 1/2" socket process water, sample, or instrument supply lines into a continuing 3/4" socket common header or return run in water treatment, manufacturing, and laboratory installations where all-socket cemented construction is maintained throughout and the enlarged 3/4" socket branch must continue as a cemented pipe run at the consolidation point
• Water Treatment & Aquaculture — Used at all-socket flow collection points, filter inlet consolidation branches, and recirculating system return assemblies where two 1/2" socket supply runs must consolidate into a continuing 3/4" socket pipe run with NSF/ANSI 61 compliance and all-socket cemented construction required throughout the collection assembly
• Commercial Plumbing — Consolidates two 1/2" socket dedicated service supply lines into a continuing 3/4" socket branch collection main at inline junction points in commercial building water systems where all-socket construction is specified and the 3/4" socket branch must continue as a cemented pipe run rather than terminate at a threaded component at the collection junction