Tee, Slip x Slip x Slip PVC Schedule 80 2-1/2" x 1" (801-289)

The 801-289 is a PVC Schedule 80 reducing tee with a 2-1/2" slip (socket) run and a 1" slip (socket) branch outlet, all joined by solvent cement welding per ASTM D2564. The two 2-1/2" run ports accept standard 2-1/2" PVC pipe ends for a permanent, pressure-rated inline connection, while the 1" slip branch accepts a standard 1" PVC pipe end — creating a fully solvent-welded, three-way reducing junction with no threaded connections at any port.

Manufactured from rigid, dark gray PVC compound conforming to ASTM D1784 cell classification requirements, the Schedule 80 wall construction delivers higher pressure ratings and greater mechanical strength than Schedule 40 equivalents at the same pipe size. This makes the 801-289 the correct choice for high-pressure chemical lines, industrial process piping, and any Schedule 80 system where a permanent three-way reducing junction must maintain full Schedule 80 pressure integrity at every port — including the branch — without substituting lighter-wall fittings at the tap point.

The 801-289 performs a substantial 1-1/2" reduction from the 2-1/2" run to the 1" branch — the largest step-down in the current 2-1/2" run Schedule 80 all-slip reducing tee series and one that places the branch firmly in the controlled service tap category rather than the near-primary-flow role of the 801-292 (2-1/2" x 2" branch). At 1", the branch carries low-to-moderate flow for dedicated service connections, chemical injection lines, instrument taps, zone valve feeds, and other branch applications where the 2-1/2" mainline must be tapped at a significantly smaller size. The all-slip configuration produces three permanent solvent-welded joints across all ports, delivering a clean, fully bonded installation with no threaded interfaces at any connection point — the correct choice when the 1" branch is a designed-in, fixed system element that will never require disconnection, removal, or reconfiguration. At the 1" branch size in a Schedule 80 system, downstream connected elements — zone valves, inline strainers, chemical injection assemblies — are substantial enough that the permanent nature of the all-slip joint deserves deliberate consideration before installation. Buyers who anticipate any future need to service, remove, or reconfigure the 1" branch connection should consider a Schedule 80 tee with an FPT branch outlet instead, which would provide an identical 2-1/2" slip run with a threaded 1" outlet that remains fully serviceable throughout the system's life.

Specifications:

Industries & Applications:

• Industrial Process Piping — Permanent 1" service taps off 2-1/2" Schedule 80 mainlines for fixed chemical injection points, dedicated instrument connections, zone valve feeds, and controlled low-to-moderate flow branch connections in high-pressure chemical distribution and process fluid systems
• Chemical Processing — Permanent branch taps in corrosive service piping handling acids, caustics, and aggressive fluids where all-PVC Schedule 80 construction provides both chemical resistance and the required pressure safety margin at the tap point and throughout the fully bonded system
• Municipal Water & Wastewater — Permanent low-to-moderate flow service branches and fixed instrument taps off 2-1/2" Schedule 80 distribution mains at pump stations and treatment facilities where a 1" all-solvent-weld branch is a designed-in permanent system element
• Irrigation & Agriculture — Permanent 1" branch connections off 2-1/2" Schedule 80 mainline headers for fixed zone valve feeds, chemical injection lines, and dedicated service branches in high-pressure irrigation systems where Schedule 80 wall thickness is specified for elevated pressure performance
• HVAC & Mechanical — Permanent 1" service taps off 2-1/2" Schedule 80 chilled water and condenser water mainlines for fixed instrument connections, dedicated drain taps, and permanent low-flow service branches in commercial mechanical room installations where all-slip construction is specified throughout
• Aquaculture & Water Treatment — Permanent low-to-moderate flow branch taps off 2-1/2" Schedule 80 supply headers for fixed chemical dosing lines, instrument connections, and dedicated service branches in recirculating aquaculture and water treatment systems