Reducing Tee, Slip x Slip x Slip PVC Schedule 80 10" x 10" x 3" (801-623FB)

The 10" x 10" x 3" Schedule 80 Gray PVC Reducing Tee (801-623FB, Slip x Slip x Slip) is a large-diameter, heavy-wall specialty tee fitting manufactured to ASTM D2467 in Schedule 80 gray PVC — a full-body reducing tee configuration in which the run connections are 10" and the branch connection is 3", providing a single-body Schedule 80 PVC solution for taking a 3" lateral branch connection off a 10" primary transmission or distribution main without reducing the primary flow path diameter, without field-fabricated saddle taps, threaded branch outlet fittings, or custom manifold assemblies, and without transitioning out of Schedule 80 gray PVC construction at the branch takeoff point. The FB designation in the SKU confirms that this is a full-body tee construction — the 3" branch port is integrally molded within the full Schedule 80 tee body rather than produced through a reducing bushing, insert reduction, or secondary fitting configuration — providing the complete Schedule 80 wall thickness, structural continuity, and ASTM D2467 dimensional compliance throughout the entire fitting geometry from the 10" run ports through the tee junction and into the full depth of the 3" branch socket. The 801-623FB is the correct fitting where a 10" Schedule 80 PVC primary main must supply a 3" lateral branch connection — where the downstream zone, sector, equipment, or service connection has been established at 3" by the hydraulic design, where the primary 10" run must continue at full diameter through the straight-run ports with zero flow restriction, and where the branch connection must be a manufactured, rated, NSF-listed, full-body ASTM D2467-compliant Schedule 80 gray PVC component at the lateral branch takeoff point.

The 10" x 10" x 3" configuration is the most modest branch-to-run ratio in the standard 10" run Schedule 80 PVC reducing tee series. The 3" branch at 30% of the 10" run diameter is a minimal lateral branch takeoff — a hydraulic relationship where the branch draws a small fraction of the primary run flow with negligible effect on the primary main's straight-run velocity, pressure, and flow profile, and where the fitting functions as a single-point service tap between a large primary transmission or distribution main and a 3" branch distribution, zone supply, equipment supply, or process service line. This is the most hydraulically asymmetric configuration in the 10" run reducing tee series — a fitting where the 10" primary trunk is completely hydraulically dominant, the 3" branch draws so small a fraction of the primary flow that its operational effect on the primary main is negligible under virtually all system flow conditions, and the fitting's structural and pressure performance requirements are driven entirely by the 10" primary run conditions rather than by any meaningful flow interaction between the run and branch at the tee junction. This hydraulic character — large primary trunk, minimal lateral service tap — defines both the structural context and the application profile of the 801-623FB across every industry and system type it serves.

The 3" branch size places the downstream connection at a pipe diameter that serves a specific and well-defined range of mid-commercial distribution and service applications. At 3", the downstream branch system is the pipe size that spans the boundary between commercial branch and primary mainline service in the commercial PVC distribution market — the size used on mid-scale commercial irrigation mains, pool and spa recirculation primary connections at mid-scale commercial facilities, HVAC branch distribution connections, industrial process branch lines at mid-scale equipment sections, and secondary zone supply headers in municipal distribution systems. The 801-623FB is therefore the interface fitting between the 10" large-scale primary infrastructure and the 3" mid-commercial distribution level — the connection point at which 3" distribution branches are tapped off a 10" primary main to supply mid-scale commercial service zones, process sections, or distribution sub-systems along the primary main route. The full-body Schedule 80 construction at both the 10" run and the 3" branch ensures that this interface connection is accomplished within a single ASTM D2467-compliant fitting body that maintains Schedule 80 material class continuity from the primary main through the branch connection point regardless of the branch size relative to the primary run.

Schedule 80 gray PVC construction is the correct and only material specification for this fitting across every application where the 10" x 10" x 3" full-body reducing tee configuration is required in a Schedule 80 piping system. The Schedule 80 wall thickness through the complete tee geometry — both 10" run connections, the full tee body, and the integrally molded 3" branch port — provides the structural integrity and pressure performance required at a large-diameter primary main lateral branch fitting where the run connections experience the full internal pressure and flow conditions of the 10" primary main and the 3" branch port must maintain the same Schedule 80 structural specification as the primary run connections throughout the full fitting body. The full-body construction confirmed by the FB designation means that the 3" branch socket carries the complete Schedule 80 wall specification from the branch socket face through the full depth of the branch port into the tee body — providing the structural continuity and joint surface quality at the 3" branch socket that a reducing bushing or insert branch configuration cannot deliver with equivalent dimensional precision and pressure performance. The gray color provides the permanent Schedule 80 material class identification at the primary main lateral branch connection — confirming the installed material class for inspectors, maintenance engineers, and facility managers at the branch takeoff point in the 10" primary main system regardless of the modest 3" branch size. PVC Type 1 Grade 1 construction with cell classification 12454 per ASTM D1784 provides broad chemical resistance across water treatment chemicals, process water service, industrial utility water, and the full range of non-solvent process fluids appropriate for Schedule 80 PVC primary main service. All three socket connections — both 10" run ports and the 3" branch port — solvent cement directly onto standard IPS Schedule 40 or Schedule 80 PVC pipe of the corresponding nominal sizes. At the 10" run socket connections, heavy-body solvent cement is mandatory, pre-planned assembly with both 10" pipe ends positioned before cement application begins is essential, and full cure time compliance before system pressurization is non-negotiable. The 3" branch socket connection requires the same heavy-body cement and full cure time compliance as the 10" run sockets — the branch socket on a large-diameter primary main fitting carries the full system operating pressure at the branch port regardless of the branch pipe size, and joint integrity at the 3" branch connection is as operationally critical as at the 10" run connections under primary main service pressure conditions.

NSF 61 certification lists this fitting for potable water contact, and NSF 14 covers compliance with applicable plastics piping material standards — making it the correct primary main lateral branch fitting for municipal water treatment and distribution systems, large potable water pump station distribution headers, and large commercial and institutional water supply primary mains where NSF-listed materials are required at every fitting in the primary distribution system regardless of the branch pipe size at the lateral takeoff point. ASTM D2467 governs Schedule 80 PVC socket fittings and defines the manufacturing, dimensional, and pressure performance requirements the 801-623FB is produced to. Verify manufacturer pressure rating documentation for the specific fitting configuration before final system specification — at the 10" x 10" x 3" full-body reducing tee configuration, the governing pressure rating is determined by the largest port size (10") and the fitting's tested performance at this large-diameter lateral branch geometry, and must be confirmed against the manufacturer's published pressure-temperature rating table for SKU 801-623FB before installation in systems at or near the fitting's rated pressure ceiling.

Key Features:

• Schedule 80 gray PVC reducing tee — 10" x 10" run x 3" branch, all socket (slip) ends
• Full-body tee construction (FB) — 3" branch port integrally molded within the full Schedule 80 tee body; complete Schedule 80 wall thickness and structural continuity throughout all three ports and the full tee geometry
• Lateral branch configuration — 3" branch at 30% of 10" run diameter; most modest branch-to-run ratio in the 10" run Schedule 80 PVC reducing tee series
• Primary 10" straight-run flow path maintained at full diameter with zero branch-induced restriction
• Interface fitting between 10" primary infrastructure and 3" mid-commercial distribution and service systems
• Manufactured to ASTM D2467 — the governing standard for Schedule 80 PVC socket fittings
• NSF 61 certified for potable water contact; NSF 14 listed
• Solvent cement socket connections compatible with Schedule 40 and Schedule 80 IPS pipe at both run and branch sizes
• Gray color — universal Schedule 80 material class identification at the primary main lateral branch connection
• Full Schedule 80 construction throughout including the 3" branch port — maintains material class continuity at every primary main branch connection regardless of branch size
• Cell classification PVC 12454 per ASTM D1784
• Heavy-body solvent cement required at all three socket connections including the 3" branch; full cure time compliance mandatory before pressurization
• Pressure rating: verify against manufacturer pressure-temperature table for SKU 801-623FB

Specifications:

Industries & Applications:

• Municipal Water Distribution — Primary Transmission Main Zone Supply and Service Lateral Connections — The 10" x 10" x 3" Schedule 80 reducing tee is specified at 3" lateral branch takeoff points on 10" municipal water transmission and primary distribution mains wherever a 3" zone supply lateral, secondary distribution branch, or service connection must be taken off the 10" primary trunk — connections supplying 3" zone distribution headers serving residential service areas, 3" service lateral connections to small and mid-scale commercial buildings, 3" pressure zone supply branches feeding small sub-zone distribution systems, and 3" secondary distribution connections to localized service areas along the primary main route; at municipal scale, every branch connection fitting on a 10" primary transmission main is a formally specified, permitted, and inspected infrastructure component regardless of branch size, and the 801-623FB provides the manufactured, rated, NSF-listed, ASTM D2467-compliant full-body Schedule 80 PVC solution for 3" lateral branch takeoffs at primary transmission main connection points; the full-body construction is the specification-critical distinction from reducing bushing branch configurations at this large primary-to-small branch size differential — ensuring complete Schedule 80 wall integrity at the branch port interface regardless of the 30% branch-to-run ratio
• Water Treatment Plant — Primary Header Equipment and Instrument Branch Connections — Installed at 3" lateral branch connection points on 10" primary distribution headers in municipal and industrial water treatment plants — clearwell supply and distribution primary trunks supplying 3" zone distribution connections to secondary treatment equipment clusters, sampling station supply headers, and instrument supply manifolds; filter influent and effluent primary headers connecting to 3" individual filter cell supply and return lines; backwash primary supply mains connecting to 3" individual filter backwash inlet connections; plant service water primary headers supplying 3" equipment supply branches to mid-scale process equipment sections throughout the treatment facility; and chemical dilution water supply headers connecting to 3" secondary distribution branches serving chemical dosing and preparation equipment areas; the 3" branch at water treatment plant primary header level is the standard branch size for mid-scale individual equipment connections, secondary instrument supply headers, and small process equipment supply branches taken off the 10" primary service water main; NSF 61 listing makes this fitting appropriate for every potable water treatment primary distribution branch connection at this configuration
• Pump Station — Primary Header Secondary Branch and Instrument Supply Connections — Used at 3" lateral branch connections off 10" primary pump station headers where the 10" primary pump discharge or suction header must supply 3" branches to individual pump unit bypass connections, pressure relief valve supply branches, secondary check valve bypass lines, drain and blow-off connections, system sample connections, and instrument supply headers requiring a direct 3" service tap off the primary 10" header; the 3" branch at pump station primary header level is the standard size for secondary service, bypass, drain, and instrument connections taken directly off the 10" primary header in pump station piping systems; the full-body construction at the 3" branch port ensures complete Schedule 80 wall specification at the branch socket interface — a structural requirement at primary pump station header connections where system surge, pressure fluctuation, and mechanical loading from pump operation impose demanding service conditions on every branch connection fitting regardless of branch size
• Industrial Process Piping — Primary Header Mid-Scale Equipment Branch Connections — Used at 3" lateral branch takeoff points on 10" process water primary headers, cooling water primary distribution trunks, plant utility water primary mains, and large-volume industrial process fluid primary headers in manufacturing plants, chemical processing facilities, petrochemical support facilities, and heavy industrial environments where the 10" primary process header must supply 3" branches to mid-scale process equipment cooling connections, heat exchanger secondary supply branches, process unit drain and sample connections, chemical preparation equipment supply lines, and localized utility supply connections to process equipment sections served by 3" sub-distribution systems; the 3" branch is a standard lateral tap size along 10" primary process headers in industrial facilities, appearing wherever mid-scale equipment sections require a dedicated 3" service connection from the primary distribution main while the primary 10" trunk continues at full capacity through the straight run ports; the full-body Schedule 80 construction throughout the fitting ensures that the structural specification at the 3" branch port matches the Schedule 80 standard of the primary 10" run system at every branch connection point
• Large Commercial & Agricultural Irrigation — Primary Trunk Mid-Scale Zone Supply Connections — Specified at 3" lateral branch takeoff points on 10" primary irrigation transmission mains at large commercial irrigation systems where the 10" primary main must supply 3" zone supply headers, mid-scale sector isolation valve inlet connections, and 3" lateral distribution branch headers feeding mid-scale irrigation zones along the primary transmission main route; the 3" branch is the correct zone supply lateral size at commercial irrigation systems where mid-scale zones served by 3" zone headers are distributed along a 10" primary transmission main, and where the zone's peak flow requirement and the zone header pipe sizing analysis have established 3" as the correct supply lateral size at the primary main branch connection; the 801-623FB appears at each 3" zone takeoff point along the 10" primary irrigation main route in commercial irrigation systems where Schedule 80 PVC is the specified system material and a full-body tee construction is required at every primary main branch connection
• Industrial Water & Wastewater Treatment — Primary Process Header Secondary Branch Connections — Installed at 3" lateral branch connection points on 10" primary process distribution headers in industrial wastewater treatment, water reclamation, and large-scale industrial water management facilities — clarifier influent headers supplying 3" individual clarifier feed connections to smaller clarifier units, primary effluent distribution mains supplying 3" individual secondary disposal connection branches, aeration system primary supply headers connecting to 3" individual small-zone aeration branch connections, primary chemical feed distribution headers supplying 3" chemical injection point feed lines, and polymer and dewatering chemical primary distribution headers connecting to 3" individual dosing point supply branches; the 3" branch is a standard service lateral size at 10" primary process distribution headers in treatment facilities where mid-scale individual process connections, secondary zone connections, and chemical injection point supply branches require a 3" direct tap off the primary header; Schedule 80 gray PVC and full-body construction handles the chemical service, process fluid contact, and structural loading conditions at primary process header lateral branch connections throughout industrial treatment environments
• Municipal Well Field — Primary Collection and Distribution Header Service Connections — Used at 3" lateral branch connections on 10" primary well field collection or distribution headers in municipal and commercial well field installations — individual well pump bypass connections and drain lines, sample tap supply branches and instrument connections requiring a 3" direct service connection off the primary header, chemical injection and chlorination point supply connections sized at 3", pressure gauge and flow meter manifold supply branches, and secondary service connections to auxiliary well field equipment requiring a 3" supply tap off the 10" primary collection or distribution header; the 3" branch at well field primary header level is the standard size for chemical injection, instrumentation, sampling, and bypass connections that must be taken directly off the primary header without interrupting or restricting the primary collection or distribution flow; full-body Schedule 80 construction at the 3" branch port ensures the structural integrity required at primary header service connection points in well field systems where pump surge and primary header pressure conditions are among the most demanding in commercial PVC service
• HVAC & Large Commercial Mechanical Systems — Primary Main Mid-Scale Zone and Equipment Supply Branches — Specified at 3" lateral branch supply connections on 10" primary chilled water distribution mains, condenser water primary trunks, and large-capacity hydronic heating and cooling primary distribution headers in large commercial campus, institutional, and industrial mechanical systems where the 10" primary distribution main must supply 3" branches to mid-scale building loop supply connections, medium fan coil unit group supply headers, terminal air handling unit supply branches sized at 3", and equipment room supply connections serving mid-scale clusters of terminal mechanical equipment; the 3" branch is the standard lateral tap size for mid-scale building and zone connections taken off 10" primary HVAC distribution mains at campus and institutional mechanical systems where the primary main routes between buildings or mechanical rooms and supplies 3" zone connections at mid-scale building supply points along the primary main route; Schedule 80 construction satisfies the material specification at 10" primary distribution lateral branch connections in large commercial mechanical systems where Schedule 80 is the system material standard