Reducing Tee, Slip x Slip x FPT PVC Schedule 40 2" x 1-1/2" x 1" (402-239)

This 2" x 1-1/2" x 1" Schedule 40 PVC Reducing Tee (Slip x Slip x FPT) combines three simultaneous functions in a single compact fitting body — reducing the inline run from a 2" slip socket inlet to a 1-1/2" slip socket outlet while simultaneously providing a 1" female NPT-threaded branch outlet perpendicular to the run. Constructed in white Schedule 40 PVC, it is the most functionally complex confirmed 402 series entry in this catalog session — incorporating run reduction, branch tapping, and socket-to-thread material transition in a single fitting that would otherwise require multiple separate fittings in sequence at the same assembly location.

The 2" slip socket run inlet accepts 2" PVC pipe for a permanent solvent-cement bond on the upstream supply run, while the 1-1/2" slip socket run outlet accepts 1-1/2" PVC pipe for a permanent solvent-cement bond on the continuing downstream run at the reduced diameter — maintaining the inline run continuity while stepping the run diameter down from 2" to 1-1/2" through the fitting body. The 1" FPT branch outlet accepts any standard 1" male NPT-threaded valve body, instrument connection, service component, or equipment port for a pressure-tight mechanical connection when made up with thread sealant or PTFE tape — providing a female-threaded service tap at the tee location without a separate tee plus female adapter assembly at the branch point. This three-port multi-function configuration is the correct choice when three conditions must be met simultaneously at the same assembly point: a 2" socket pipe run upstream, an inline run step-down to 1-1/2" socket at the tee location, and a 1" female-threaded branch service connection perpendicular to the run. At 2" x 1-1/2" x 1", this tee most commonly appears in pump station discharge manifold assemblies where a 2" pump discharge run must simultaneously step down to a continuing 1-1/2" distribution header and provide a 1" male-threaded gauge, valve, or instrument connection at the tee; in large commercial irrigation distribution assemblies where a 2" primary socket header must simultaneously transition to a 1-1/2" socket secondary header inline and provide a 1" FPT branch for a zone valve body; and in industrial process water distribution assemblies where a 2" socket supply run must simultaneously reduce to a 1-1/2" socket secondary run and supply a 1" male-threaded instrument or service component at the inline transition point.

Rated to approximately 280 psi at 73°F (governed by the 2" slip run inlet), this tee is suited for standard commercial and light industrial pressure service. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket at each slip port per ASTM D2564 procedures — note that the two slip ports are different diameters (2" inlet and 1-1/2" outlet); confirm pipe diameters before cementing each joint. On the 1" FPT branch, use a quality pipe thread sealant or PTFE tape on the male NPT threads of the mating downstream component before engagement. Avoid over-torquing the FPT branch — PVC female threads require hand-tight plus one to two turns. Allow adequate cure time on both cemented joints before pressurizing, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Pump Station Assemblies — Commercial & Industrial — Simultaneously steps down a 2" pump discharge socket run to a continuing 1-1/2" socket distribution header and provides a 1" male-threaded pressure gauge connection, valve body inlet, or instrument stub at the inline transition point in commercial and industrial pump station installations where run reduction, branch service access, and FPT branch provision must occur at the same compact fitting location in the all-socket and mixed-connection assembly
• Irrigation & Water Distribution — Transitions a 2" socket primary distribution or pump discharge run to a continuing 1-1/2" socket secondary header while simultaneously providing a 1" FPT zone valve body connection, service branch, or manifold entry port in commercial irrigation valve station and primary distribution assemblies where the three-function fitting eliminates a separate run-reducing tee plus female adapter at the same assembly location
• Commercial Plumbing — Provides a combined inline run reduction and FPT branch service connection at 2" to 1-1/2" distribution header transition points in commercial building water supply systems where a 1" male-threaded pressure gauge, isolation valve, or backflow preventer connection must be incorporated at the same inline transition point in the all-socket distribution assembly
• Industrial Process Piping — Simultaneously reduces a 2" all-socket process water distribution run to a continuing 1-1/2" socket secondary header and provides a 1" FPT instrument connection, sampling valve stub, or chemical injection port at the inline reduction point in water treatment, chemical processing, and manufacturing facilities where multi-function single-fitting efficiency at inline distribution transition points minimizes fitting count
• Water Treatment & Aquaculture — Used at inline 2" to 1-1/2" transition points in all-socket Schedule 40 distribution assemblies where a 1" male-threaded chemical dosing connection, instrument tap, or treatment equipment inlet must be incorporated at the run reduction point with NSF/ANSI 61 compliance required throughout the mixed-connection assembly
• Chemical Handling — Provides a corrosion-resistant combined inline run reduction and FPT service branch at 2" to 1-1/2" socket assembly transition points in chemical distribution systems where a 1" male-threaded dosing port, injection stub, or sampling valve must be incorporated at the run step-down location without additional adapter hardware in the all-socket chemical distribution assembly