90 Degree Elbow, Slip x Slip PVC Schedule 80 3" x 2-1/2" (806-339)

The 3" x 2-1/2" PVC Schedule 80 Reducing 90 Degree Elbow (Part No. 806-339) is a pressure-rated, gray-body fitting designed to simultaneously redirect a Schedule 80 PVC piping system through a 90-degree turn and reduce the pipe diameter from 3" to 2-1/2" in a single compact component. Both ports accept solvent-cement joints in a slip (socket) configuration — the larger 3" socket on the inlet side and the smaller 2-1/2" socket on the outlet side — producing a rigid, leak-resistant assembly suited to the elevated pressures and chemically demanding environments where Schedule 80 is the specified standard.

The reducing 90-degree elbow consolidates two distinct fitting functions — a right-angle directional change and a pipe size reduction — into a single component. The conventional alternative of a same-size 3" 90-degree elbow followed by a downstream 3" × 2-1/2" reducer accomplishes the same transition but requires two fittings, two solvent-cement joints, and additional installed length through the turn. In Schedule 80 pressure systems where joint integrity, assembly compactness, and fitting count are active design priorities, the reducing elbow's single-component approach eliminates a joint at a geometrically complex location — the turn — where a two-component assembly would otherwise introduce an additional cement joint in a high-stress zone of the piping layout.

The 3" × 2-1/2" size combination represents a one-step, adjacent-size reduction at the elbow — a modest but deliberate step-down that reflects careful hydraulic sizing rather than a dramatic flow restriction. The 2-1/2" outlet carries substantial flow capacity — only one nominal size below the 3" inlet — making this fitting appropriate at turn points where the downstream circuit requires near-full-run flow capacity at a slightly reduced pipe size. This pairing appears most frequently in industrial process loops, commercial mechanical rooms, and municipal systems where a 3" supply or distribution main must turn 90 degrees and transition to a 2-1/2" equipment connection, sub-distribution header, or branch circuit at the same fitting location.

The 2-1/2" outlet size connects directly to standard Schedule 80 components in the 2-1/2" nominal size — valves, unions, couplings, and equipment ports — without requiring additional downstream reducers, making the 806-339 a clean endpoint fitting at 90-degree turn locations where a 3" line transitions to a 2-1/2" downstream assembly. At 2-1/2", this is also worth noting as a less-commonly stocked nominal size — buyers sourcing this reducing elbow are almost certainly working from a confirmed system specification where both 3" and 2-1/2" have been deliberately selected.

Manufactured from Type I, Grade I PVC compound, this fitting conforms to ASTM D2467 dimensional standards and delivers the wall thickness and pressure ratings that define Schedule 80 over Schedule 40. Compatible with Schedule 80 PVC pipe and solvent cements conforming to ASTM D2564.

Specifications:

Industries & Applications:

• Industrial & Chemical Processing — Combined 90-degree directional change and one-step size reduction on chemical-resistant pressure lines where a 3" main must turn and transition to a 2-1/2" equipment inlet, secondary header, or process connection at a single compact fitting location
• Municipal Water & Wastewater — Right-angle turns with simultaneous size reduction on 3" distribution or treatment infrastructure where a 2-1/2" service connection, metering assembly, or equipment supply must be introduced at a 90-degree junction point without downstream reducing hardware
• Commercial Plumbing — Mechanical room and equipment room assemblies on Schedule 80 systems where a 3" supply line must turn 90 degrees and transition to a 2-1/2" equipment inlet or sub-distribution header at a single fitting in a space-constrained installation
• Irrigation — Pump station and mainline turn points on pressurized 3" irrigation systems where a 90-degree directional change and a one-step size reduction to 2-1/2" must occur at the same fitting location for equipment connections or compact manifold geometry
• Mining & Oil Field — Corrosive fluid handling systems requiring a durable, chemical-resistant combined directional and size-reduction fitting at 90-degree turn points on 3" pressure lines transitioning to 2-1/2" secondary circuits or equipment connections
• Power Generation & Utilities — Cooling water and process fluid systems where a 3" Schedule 80 PVC line must navigate a 90-degree turn and simultaneously step down to a 2-1/2" distribution run or equipment connection at pump headers or system manifold locations
• Aquaculture & Water Treatment — Recirculating system headers and equipment assemblies where a 3" distribution main must turn 90 degrees and transition to a 2-1/2" lateral circuit or equipment connection at a single fitting point in a compact system layout