Tee, FPT x FPT x FPT PVC Schedule 40 3/4" (405-007)

This 3/4" Schedule 40 PVC Threaded Tee (FPT x FPT x FPT) provides a three-way branch junction within all-threaded PVC piping systems, accepting male NPT-threaded pipe ends, nipples, or fitting outlets on all three ports without introducing solvent-cement joints into the assembly. Constructed in white Schedule 40 PVC, it offers the corrosion resistance and chemical compatibility required across a wide range of commercial plumbing, irrigation, and light industrial fluid handling applications where threaded construction is specified or preferred throughout the system.

All three female pipe thread (FPT) ports are cut to NPT tapered thread standards, each accepting any standard 3/4" male NPT pipe end, nipple, or fitting for a pressure-tight mechanical connection when made up with thread sealant or PTFE tape. The two inline run ports form the through leg of the tee while the third branch port exits perpendicular, allowing an all-threaded supply main to be tapped at any point along its run for a branch connection without cutting pipe or introducing a cemented joint. At 3/4", this tee is among the two highest-demand sizes in the 405 series alongside the 1" entry — appearing throughout pump station assemblies, chemical feed manifolds, instrument distribution headers, irrigation valve stations, and small-to-moderate-diameter commercial plumbing branch supply runs where threaded construction provides the flexibility of disassembly and reconfiguration that solvent-cement systems cannot offer. The 3/4" all-threaded tee is particularly dominant in residential and light commercial irrigation valve station assemblies where 3/4" is the standard mainline diameter for all-threaded PVC construction throughout the station.

Rated to approximately 480 psi at 73°F, this tee is suited for standard commercial and light industrial water distribution and irrigation service within its pressure class. 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 tees in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact, including use in drinking water distribution and treatment systems.

Install using a quality pipe thread sealant or PTFE tape on all male NPT threads before engagement at each port. Avoid over-torquing — PVC threads require hand-tight plus one to two turns; excessive force can crack the fitting body or distort thread engagement. Make up the run ports first to establish inline alignment, then engage the branch port. If the branch port will be unused initially, cap it with a Schedule 40 FPT Cap (448 series) to maintain system pressure integrity and allow future tap additions without cutting into the line. Derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Branches 3/4" male-threaded supply lines, zone valve inlets, solenoid connections, and filter housing taps off threaded mainline runs in agricultural and municipal irrigation systems — the dominant application for this fitting at the most widely specified all-threaded PVC valve station diameter; where all-threaded 3/4" PVC construction serves residential and light commercial irrigation systems, this tee appears at virtually every zone valve station branch point
• Commercial Plumbing — Provides a three-way branch junction in 3/4" all-threaded PVC supply systems at fixture supply points, pressure gauge taps, backflow preventer connections, and branch distribution headers in commercial building water systems where solvent-cement joints are absent or not preferred at the tee location
• Industrial Process Piping — Branches chemical feed lines, instrument supply connections, sampling taps, and small-to-moderate-diameter service runs off 3/4" threaded process water distribution headers in water treatment, chemical processing, and manufacturing facilities where all-threaded Schedule 40 PVC construction is specified for reconfigurability and serviceability
• Chemical Handling — Provides a corrosion-resistant three-way threaded junction in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, in all-threaded chemical feed manifolds, metering pump distribution headers, and injection line assemblies at 3/4" line sizes where all-threaded construction facilitates ongoing system modifications and component replacement
• Water Treatment & Aquaculture — Used in threaded instrument manifolds, chemical dosing distribution headers, sampling tap assemblies, and recirculating system branch connections where NSF/ANSI 61 compliance and a serviceable three-way threaded junction are required at 3/4" line sizes throughout the all-threaded assembly
• HVAC & Mechanical Systems — Branches 3/4" male-threaded service lines, sensor connections, drain valve stubs, and chemical feed taps off threaded PVC distribution runs on cooling tower supply assemblies, chilled water service lines, and chemically treated water system assemblies within the Schedule 40 pressure rating class