45 Degree Elbow, Slip x Slip PVC Schedule 80 8" (817-080)

The 817-080 is an 8" Schedule 80 PVC 45° elbow with slip socket connections on both ends. Where the 806-080 90° elbow executes a full quarter-turn directional change, the 817-080 provides a moderate 45° deflection — the correct fitting when a piping run needs to offset around an obstruction, follow a building line or grade transition, or make an angular correction that falls between the capability of a 22-1/2° shallow bend and the decisive quarter-turn of a 90° elbow. At 8" Schedule 80, this is an unambiguously industrial fitting: a large-bore, heavy-wall moderate-angle directional change designed for pressure piping systems where Schedule 40 construction is insufficient for the service pressure, mechanical conditions, chemical exposure, or impact environment the system encounters in operation.

The 45° angle carries meaningful hydraulic and structural advantages over a 90° elbow at this diameter. Flow entering a 45° bend maintains significantly more directional momentum than flow negotiating a 90° turn — turbulence is reduced, velocity head loss is lower, and the unbalanced thrust force generated at the bend is substantially smaller than a 90° fitting produces at equivalent diameter and pressure. On an 8" Schedule 80 system, where operating pressures, flow velocities, and thrust forces are all elevated relative to smaller-bore piping, these performance characteristics factor directly into system design: engineers specifying elbow angle at 8" Schedule 80 are making a deliberate hydraulic and structural decision, not a casual routing choice. The 45° elbow is the answer when a 90° turn would impose excessive head loss, require oversized thrust restraint, or introduce turbulence near pump inlets, sensitive instrumentation, or equipment connections where flow quality matters.

Two 817-080 elbows in series produce a 90° total deflection with a longer centerline radius than a single 806-080 — a technique used in industrial piping design to reduce turbulence and pressure drop through a quarter-turn while maintaining Schedule 80 construction throughout. Combined with 22-1/2° elbows at the same size and schedule, the 45° provides the angular building block for precise directional routing in complex industrial piping layouts where space constraints, equipment clearances, and structural routing requirements demand exact deflection angle combinations rather than standard single-elbow turns.

Both slip sockets accept standard IPS-dimension Schedule 80 PVC pipe bonded with heavy-bodied PVC solvent cement — the correct grade at large diameters where socket depth and cement coverage area are substantially greater than small-bore applications. Proper joint preparation at 8" — pipe end squaring, deburring, primer application where required, and correct cement bead weight per the manufacturer's large-diameter instructions — determines the long-term integrity of the solvent-weld joint and should be followed rigorously at this fitting size. Manufactured from rigid dark gray PVC compound to ASTM D2467, the 817-080 delivers the full Schedule 80 performance profile: heavier walls, higher pressure ratings than Schedule 40 at equivalent size, superior chemical resistance across acids, bases, oxidizers, and industrial solvents, and greater resistance to mechanical impact and external stress — confirming its specification role wherever large-diameter PVC pressure piping operates under conditions that exceed Schedule 40's design envelope.

Specifications:

Industries & Applications:

• Industrial Process Piping — Moderate-angle directional changes on 8" Schedule 80 process water, cooling water, chemical distribution, and plant utility fluid headers where 45° deflection keeps head loss and thrust forces within system design parameters while maintaining the heavy-wall construction required for industrial service pressure and mechanical conditions
• Chemical Processing & Manufacturing — 45° routing changes on 8" chemical transfer, rinse water, and process fluid distribution headers where Schedule 80 PVC's chemical resistance to acids, bases, oxidizers, and industrial solvents is required throughout the fitting and the moderate deflection angle maintains flow momentum through the directional change
• Municipal Water & Wastewater — Moderate-angle directional changes on 8" high-pressure municipal water transmission mains, pump station discharge headers, and wastewater force mains where Schedule 80 construction is specified for elevated working pressures and the 45° angle reduces thrust block size and restraint hardware requirements compared to 90° alternatives
• Pump Station & Equipment Connections — 45° routing corrections on 8" Schedule 80 pump discharge and suction headers where moderate deflection angles reduce turbulence near pump inlets and outlets, minimize unbalanced thrust forces on connected equipment, and maintain schedule consistency with the parent Schedule 80 system throughout the pump station piping assembly
• Industrial Drain, Waste & Vent (DWV) — Moderate-angle directional changes on 8" Schedule 80 industrial drain and chemical waste collection headers where 45° elbows reduce turbulence and support self-cleaning flow characteristics in gravity-flow and low-pressure drain systems handling aggressive industrial effluents
• Water & Wastewater Treatment — 45° routing changes on 8" treatment plant process water, chemical feed, and distribution headers where Schedule 80 construction is specified for chemical media compatibility and elevated pressure service and the moderate deflection angle supports hydraulic efficiency on primary plant flow lines
• Mining & Power Generation — Moderate-angle directional changes on 8" cooling water, slurry handling, process effluent, and plant utility distribution headers in harsh industrial environments where Schedule 80 impact resistance, chemical tolerance, and heavy-wall pressure capacity are sustained service requirements
• Aquaculture & Recirculating Systems — 45° directional changes on 8" Schedule 80 high-pressure recirculating system supply and return headers where moderate deflection angles minimize head loss through directional changes and Schedule 80 construction supports elevated operating pressures and long continuous-operation service life