Reducing Tee, Slip x Slip x FPT PVC Schedule 40 1" x 1" x 1/2" (402-130)

This 1" x 1" x 1/2" Schedule 40 PVC Tee (Slip x Slip x FPT) provides a three-way mixed-connection junction that taps a 1/2" female NPT-threaded service connection directly off a 1" all-socket PVC pipe run, combining a permanent solvent-cement inline run with a built-in threaded branch outlet in a single compact fitting body. Constructed in white Schedule 40 PVC, it is among the most broadly applicable mixed-connection tee entries in the 402 series — combining the highest-demand PVC pipe run diameter (1") with the most widely specified small-bore service connection size (1/2" FPT) for solenoid valve inlets, zone valves, drip emitter manifold stubs, pressure gauge connections, chemical injection ports, and dedicated small-bore service components throughout commercial irrigation, plumbing, and light industrial assemblies.

The two 1" slip socket run ends accept 1" PVC pipe for permanent solvent-cement bonds forming the continuous inline run, while the 1/2" FPT branch outlet accepts any standard 1/2" male NPT-threaded fitting, solenoid valve inlet, zone valve body, drip emitter manifold stub, pressure gauge connection, chemical injection nipple, or instrument port for a pressure-tight mechanical connection when made up with thread sealant or PTFE tape. This Slip x Slip x FPT configuration is the correct choice when the upstream and downstream 1" pipe run is all-socket PVC and a 1/2" male-threaded service component must be tapped at the branch location — providing the combined function of a standard 1" tee plus a built-in socket-to-thread transition at the branch outlet without a separate female adapter, reducer bushing, or hex bushing at the branch port. The 1" to 1/2" step-down at the branch is a meaningful 2:1 reduction that accommodates the most common small-bore service connection size across residential and light commercial irrigation, commercial plumbing, and process water systems — where 1/2" threaded solenoid valve inlets, drip emitter manifold stubs, pressure gauge taps, and chemical injection ports must be served off 1" socket mainline runs at tee locations throughout the distribution layout. This entry is distinct from the 402-131 (1" x 1" x 3/4" FPT branch, if stocked), which would provide a larger 3/4" threaded branch for higher-flow zone valve and service component connections, from any full-size 402 series entry at the 1" run diameter which provides an equal 1" FPT branch, and from the smaller-branch instrument tap entries (402-072 at 1/4" FPT and 402-071 at 1/8" FPT, confirmed in this catalog session at 1/2" run inlets) which serve instrument monitoring functions at smaller run sizes.

Rated to approximately 450 psi at 73°F (governed by the 1" slip run ends), this tee is suited for standard commercial and light industrial pressure service. NSF/ANSI 61 listing confirms suitability for potable water contact, including use in drinking water distribution and treatment systems.

Apply solvent cement to both the pipe end and fitting socket at each run 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. On the 1/2" 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 — PVC threads require hand-tight plus one to two turns. Allow adequate cure time on the cemented joints before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Taps 1/2" male-threaded solenoid valve inlets, zone valve bodies, drip emitter manifold stubs, filter housing connections, and pressure gauge connections directly off 1" socket mainline and sub-main pipe runs at valve station, zone manifold, and distribution header tee locations in residential, agricultural, and municipal irrigation systems — the most common mixed-connection tee application in 1" all-socket PVC irrigation assemblies where 1/2" threaded zone components are specified at regular tee intervals throughout the distribution layout
• Commercial Plumbing — Incorporates 1/2" male-threaded branch service connections, ball valve inlets, pressure gauge taps, and instrument stubs directly at 1" socket tee locations in commercial building water distribution systems where a 1/2" threaded small-bore service connection must be tapped off the 1" socket mainline run without a separate reducer bushing or adapter at the branch port
• Industrial Process Piping — Provides 1/2" male-threaded instrument connections, sampling valve stubs, chemical injection ports, and small-bore service branch components at 1" socket process water distribution header tee locations in water treatment, chemical processing, and manufacturing facilities where 1/2" threaded downstream service components must be tapped directly off 1" socket mainline runs throughout the distribution assembly
• Chemical Handling — Delivers a corrosion-resistant mixed-connection 1/2" FPT service tap off 1" socket PVC pipe runs in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, at chemical distribution header tee locations where 1/2" male-threaded metering ports, solenoid valve inlets, and injection stubs must be incorporated without an intermediate adapter assembly at the branch
• Water Treatment & Aquaculture — Used at 1" socket distribution header tee locations where 1/2" male-threaded chemical dosing ports, instrument connections, zone valve inlets, and treatment equipment service stubs must be incorporated with NSF/ANSI 61 compliance throughout the all-socket 1" pipe run assembly
• HVAC & Mechanical Systems — Taps 1/2" male-threaded sensor connections, drain valve stubs, chemical feed ports, and small-bore service components directly off 1" socket pipe runs on cooling tower supply headers, chilled water distribution mains, and chemically treated water system assemblies within the Schedule 40 pressure class