Tee, Slip x Slip x Slip PVC Schedule 80 4" (801-040)

The 4" PVC Schedule 80 Tee (Slip x Slip x Slip) provides a full-bore, three-way branch connection in solvent-welded Schedule 80 PVC systems. All three socket ends accept 4" Schedule 80 PVC pipe via solvent cement, creating a permanent, leak-free equal tee configuration that maintains full pipe diameter through both the run and the branch — suitable for systems where flow must be split, combined, or distributed at a 90-degree branch junction without any reduction in pipe size at the fitting.

At 4", this is a large-format fitting most commonly encountered in municipal infrastructure, civil construction, industrial process piping, and large commercial mechanical systems rather than in typical residential or light commercial plumbing. Equal tees at this diameter are workhorses of distribution and collection headers — installed wherever a 4" main must simultaneously serve a straight run and a perpendicular branch of equal size, or where two 4" lines must converge into a single 4" run. Common configurations include pump discharge manifolds feeding multiple zones, irrigation mainline distribution headers, treatment plant process piping, and industrial cooling water distribution systems.

Proper solvent cement technique is critical at 4". The large socket surface area requires thorough, even primer and cement application across the full depth and circumference of both the socket and pipe spigot, and the assembly must be completed promptly before the cement begins to set. Cure time before pressurization should follow the cement manufacturer's published schedule for the pipe size, ambient temperature, and humidity conditions present at the time of installation.

Manufactured to ASTM D2467 standards and listed under NSF/ANSI 14, the 801-040 is molded from dark gray Schedule 80 PVC compound, delivering the greater wall thickness, elevated pressure ratings, and broad chemical resistance that Schedule 80 specifications demand across industrial, chemical, and commercial service environments.

Specifications:

Industries & Applications:

• Municipal Water Distribution — Installed in 4" water main runs and distribution system headers where a perpendicular branch of equal diameter must split flow to a service lateral, zone feed, or secondary distribution line while maintaining full 4" capacity through the straight run
• Municipal Sewer & Drainage — Used in 4" gravity sewer collection systems and stormwater infrastructure where a branch lateral must enter or exit a main run at a 90-degree junction; at this diameter equal tees are common at manhole connections and lateral tie-in points in municipal sewer systems
• Industrial Process Piping — Applied in cooling water distribution headers, process water supply manifolds, and plant utility piping where a 4" Schedule 80 main must simultaneously feed a straight continuation run and a perpendicular branch at full pipe diameter in chemically aggressive or high-pressure service environments
• Chemical Processing — Used in chemical distribution headers, bulk transfer manifolds, and process feed systems where flow must be split or combined at a 4" equal tee junction in systems requiring PVC's broad resistance to acids, bases, and corrosive industrial fluids
• Pump Systems & Mechanical Rooms — Installed in 4" pump discharge or suction headers where a straight run must branch to a secondary pump, zone valve, or distribution line at full pipe diameter; equal tees at this size are common in multi-pump manifold assemblies and large mechanical room distribution headers
• Irrigation & Agricultural — Applied in large-scale mainline irrigation distribution headers where a 4" supply main must branch to feed multiple irrigation zones, pump discharge manifolds, or filter station inlets simultaneously while maintaining full mainline capacity through the straight run
• Water & Wastewater Treatment — Used in treatment plant process piping, effluent distribution headers, and gravity-fed treatment infrastructure where 4" Schedule 80 equal tees provide full-bore three-way junctions at equipment connections, filter manifolds, and distribution headers across the facility