Tee, Slip x Slip x FPT PVC Schedule 80 4" x 1" (802-417)

The 4" x 1" PVC Schedule 80 Tee (802-417) combines a 4" slip x slip inline run with a 1" female pipe thread (FPT) branch outlet — purpose-built for Schedule 80 industrial process piping and chemical handling systems where a small-diameter, threaded, removable service connection must tap directly into a 4" primary run in a single compact, pressure-rated fitting. The two 4" slip ports accept standard Schedule 80 pipe for permanent, solvent-welded inline joints, while the 1" FPT branch accommodates any standard 1" male-threaded valve, pressure gauge, instrument, sensor, chemical injection assembly, or service connection that requires periodic removal or replacement without disturbing the solvent-welded 4" run on either side.

Positioned one step above the 802-416 (3/4" branch) and two steps above the 802-415 (1/2" branch) in the 802-series 4" mixed-connection tee lineup, the 802-417 occupies the point in the series where the branch transitions from purely minimal-flow precision instrument tap territory into small-but-meaningful service connection applications. A 1" FPT branch on a 4" run still represents a pronounced size differential — four nominal pipe sizes between the run and the branch — but the 1" branch carries enough flow capacity to serve a small isolation valve, a 1" chemical dosing or injection loop, a low-flow equipment drain or bypass connection, and small recirculation or service lines in addition to the instrumentation and gauge tap applications that the smaller branch sizes in the series serve exclusively. This positions the 802-417 as the most versatile fitting in the lower end of the 802-series 4" lineup — capable of serving both precision instrument tap applications and small-diameter service branch connections from the same fitting body.

The mixed slip-and-thread configuration delivers the same core design logic as all 802-series tees: the two 4" solvent-welded slip ports create permanent, pressure-rated inline joints that become part of the surrounding Schedule 80 assembly, while the 1" FPT branch preserves full downstream serviceability — allowing the threaded instrument, valve, injection fitting, or service connection at the branch to be removed and replaced as maintenance, calibration, or system reconfiguration requires, without cutting into or disturbing the primary 4" run. The single-fitting integration eliminates the reducer bushing and threaded adapter that a conventional branch assembly would require at this size differential, reducing joint count and keeping the tap point compact within the surrounding system.

Manufactured to Schedule 80 specifications and dimensionally compliant with ASTM D2467, the 802-417 delivers the elevated wall thickness and pressure rating that Schedule 80 gray PVC is specified for in chemical processing, industrial fluid handling, and demanding commercial applications. Gray PVC construction provides broad chemical compatibility with acids, alkalis, and industrial process fluids. NSF 61 certification confirms suitability for potable water contact where required.

Specifications:

Industries & Applications:

• Chemical Processing — pressure gauge taps, chemical injection loops, dosing assembly branch connections, and 1" instrument supply taps off 4" process fluid and chemical distribution headers where a single-fitting integrated tap point eliminates a multi-fitting branch assembly
• Industrial Process Piping — small isolation valve branches, equipment drain connections, low-flow bypass lines, and 1" service branch takeoffs from 4" plant utility and process fluid headers in Schedule 80 systems where the branch serves a component requiring periodic access
• Water & Wastewater Treatment — low-flow instrumentation, chemical dosing, and small service branch connections in treatment plant process piping where a 4" Schedule 80 slip run and 1" threaded branch are specified together in the system design
• Commercial & Industrial Plumbing — 1" instrument supply, small equipment tap, and service branch connections in high-pressure Schedule 80 mechanical systems where the branch serves a gauge, sensor, small valve, or minimal-flow service connection off a primary 4" header
• Aquaculture & Food Processing — chemical injection, monitoring, and small service branch fittings in recirculating systems and chemical-exposure fluid handling installations requiring Schedule 80 pressure and chemical resistance at the tee body with a removable 1" threaded branch outlet
• Irrigation & Agriculture — chemical injection assemblies, pressure monitoring taps, and small valve branch connections off 4" Schedule 80 high-pressure primary distribution headers where a removable 1" threaded branch is specified for injection, control, or instrumentation equipment