Reducing Tee, Slip x Slip x Slip 10" x 10" x 6" (C601-626)

The 10" x 10" x 6" PVC Reducing Tee (C601-626) is a Class 125, slip-socket fitting designed for large-diameter pipeline systems requiring a high-capacity branch takeoff — delivering a 6" outlet directly off a 10" run in a single, solvent-welded component without the additional joints, installation complexity, and downstream flow restriction introduced by pairing a full-size 10" tee with a separate 10"x6" inline reducer. With slip connections on all three ports, the C601-626 accepts solvent-welded pipe at both run ports and the branch outlet for a permanently bonded, full-pressure assembly that maintains structural integrity and rated performance across the entire fitting body at the run-to-branch transition zone.

The two-size reduction from the 10" run to the 6" branch occupies a significant position in the C601 series — the 6" branch is large enough to serve as a primary feed to a major sub-distribution header, a large zone valve station, a pump inlet manifold, or a parallel secondary main, yet the step-down from 10" to 6" is substantial enough that the branch represents a meaningful flow split rather than a near-equivalent parallel circuit. This size relationship makes the C601-626 one of the most hydraulically versatile configurations in the large-diameter reducing tee range — suited to applications where the branch handles a major share of secondary distribution without requiring the near-full-bore branch capacity of the 10"x8" configuration.

The Class 125 pressure rating is well matched to the transmission mains, primary distribution headers, and high-volume process lines where 10" PVC pipe is most commonly specified. For system designers, the single reducing tee approach integrates the branch size reduction directly into the fitting body, producing a cleaner flow geometry at the branch junction and a more predictable hydraulic transition than a two-fitting assembly where the reduction is introduced as a separate downstream constriction after the branch tee.

Manufactured from virgin PVC compound meeting ASTM D2466 dimensional standards, the C601-626 delivers the corrosion resistance, chemical inertness, and long-term durability that make PVC the preferred material for large-bore water distribution, irrigation infrastructure, and industrial fluid handling at this diameter and pressure class.

Specifications:

Heavy-bodied solvent cement is required for all socket joints at 6" and above. Allow full extended cure time before pressurizing or backfilling — both the 10" run sockets and the 6" branch socket require significantly longer cure schedules than small-bore fittings, and the cure time for the largest socket should govern the assembly hold period before pressurization. Thrust restraint or thrust blocking should be evaluated at all branch tee locations in pressurized buried systems at this diameter. Pressure-temperature derating applies at elevated service temperatures per ASTM standards.

Industries & Applications:

• Municipal Water Distribution — Transmission and primary distribution mains requiring a 6" branch feed to parallel distribution sub-mains, storage tank fill lines, booster station inlets, fire flow headers, pressure zone boundary valve stations, or major service zone connections where a single reducing tee eliminates a downstream reducer and produces a cleaner hydraulic profile at the branch junction
• Agricultural & Large-Scale Irrigation — 10" mainline trunk distribution with a 6" branch drop to high-capacity sub-main headers, large pump station inlets, multi-zone valve manifolds, or parallel irrigation circuits on large farms, golf courses, and managed landscape campuses where the 6" branch serves a primary secondary distribution role off the 10" trunk main
• Industrial Process Piping — High-volume fluid transfer headers requiring a 6" branch takeoff to a secondary process loop, parallel equipment feed, large-capacity cooling circuit inlet, or primary secondary distribution header where a substantial share of mainline flow is directed to the branch at the junction
• Water & Wastewater Treatment — Plant distribution mains supplying 6" branch feeds to filtration train inlets, aeration basin distribution headers, clarifier influent connections, secondary treatment process lines, or chemical feed distribution manifolds where Class 125 pressure rating meets the service conditions and a single reducing tee simplifies the installation
• Stormwater & Flood Control Infrastructure — Large-diameter gravity or low-pressure stormwater collection and conveyance systems requiring a 6" branch junction off a 10" trunk main at primary lateral connections, basin inlet manifolds, or below-grade routing transitions where the 6" branch handles a significant secondary flow volume
• Fire Protection Supply Systems — Underground or above-grade 10" fire suppression supply mains with a 6" branch feed to primary hydrant laterals, dedicated fire storage fill lines, high-demand suppression system risers, or fire pump inlet headers where 6" branch capacity meets large fire flow demand requirements
• Power Generation & Industrial Cooling — Cooling water distribution mains at industrial power facilities requiring a 6" branch split to parallel cooling towers, large heat exchanger banks, or secondary process cooling circuits where the 6" branch carries a primary share of the secondary cooling flow
• Aquaculture & Water Management — High-flow recirculation, intake, or discharge headers requiring a 6" branch split to parallel raceways, pond inlet manifolds, treatment system bypass loops, or secondary distribution circuits in large-scale aquaculture or water management facilities