45 Degree Elbow, Slip x Slip PVC Schedule 80 2-1/2" (817-025)

The 817-025 is a 2-1/2" Schedule 80 PVC 45° Elbow with Slip x Slip connections. This fitting changes the direction of a 2-1/2" PVC pressure line at a 45° angle, accepting solvent cement on both ends for a permanent, pressure-rated bond to standard Schedule 80 PVC pipe. Where a 90° elbow makes a sharp right-angle turn, the 45° elbow makes a shallower, more gradual directional change — routing pipe around obstructions, adjusting alignment between offset centerlines, transitioning a line diagonally through a structure, or stepping a run across a grade change — while introducing meaningfully less turbulence and lower friction loss into the system than a full 90° turn at the same pipe size.

Both slip sockets accept standard 2-1/2" Schedule 80 PVC pipe, and the 45° geometry directs flow smoothly through the angular transition. In addition to its use as a standalone directional fitting, the 45° elbow is frequently deployed in pairs — two 45° elbows in series can substitute for a single 90° turn where the longer combined sweep radius improves flow characteristics, where the offset geometry is needed to shift a pipe run laterally between parallel centerlines, or where physical installation constraints make a standard 90° fitting impractical in the available space.

At 2-1/2", this fitting occupies the mid-size range of commercial and industrial PVC pressure piping — a size commonly encountered on pump discharge assemblies, chemical distribution headers, water treatment plant branch piping, and irrigation supply mains where flow rates and system pressures have outgrown standard residential pipe sizes but the installation has not yet scaled to the large-diameter fittings of major municipal or industrial infrastructure. Schedule 80 wall thickness ensures the 817-025 meets the higher pressure demands of these environments, outperforming Schedule 40 equivalents where chemical exposure, elevated working pressure, or specification requirements call for the more robust fitting standard.

The dark gray rigid PVC compound provides excellent resistance to a broad range of acids, bases, and industrial chemicals, making this elbow a long-service alternative to metal fittings in corrosive service environments where iron, steel, or brass would be subject to degradation, staining, or contamination of the process fluid.

Specifications:

⚠️ Note: Pressure ratings decrease as operating temperature increases. Consult manufacturer derating tables for elevated-temperature service. When installing two 45° elbows in series to achieve a 90° offset, ensure both joints are fully cured before pressurizing and that intermediate pipe length between the two fittings is sufficient to allow full socket insertion on both ends during assembly.

Industries & Applications:

• Chemical Processing — Offsets 2-1/2" chemical distribution lines around equipment, structures, and obstructions with a gradual angular transition that minimizes turbulence and reduces localized pressure drop at the directional change point in corrosive-service piping systems
• Water & Wastewater Treatment — Used on mid-size branch piping, filter feed lines, and pump station sub-headers where a 45° directional change provides a hydraulically efficient route transition that a 90° elbow would not accommodate cleanly within the available space or flow requirements
• Industrial Process Piping — Routes 2-1/2" process water, cooling water, and chemical lines through angular transitions on plant piping systems and skid assemblies where minimizing pressure drop and maintaining flow velocity through the directional change are design considerations
• Pump Station & Equipment Connections — Used at pump discharge and suction connections where the 45° geometry allows pipe runs to angle away from the equipment pad cleanly, accommodating equipment alignment requirements and available routing corridors more naturally than a perpendicular 90° turn
• Irrigation & Agricultural Systems — Offsets 2-1/2" supply mains around terrain features, structures, and underground utilities on commercial and agricultural irrigation systems where gradual directional changes across the field layout reduce head loss and simplify pipe routing
• Commercial Mechanical Systems — Specified in fluid handling and HVAC-adjacent PVC piping systems where 2-1/2" pressure lines must be routed at diagonal angles through mechanical rooms, equipment pads, and building service corridors where square turns are not practical