45 Degree Elbow, Slip x Slip PVC Schedule 80 1-1/4" (817-012)

The 817-012 is a Schedule 80 PVC 45-degree elbow with slip (socket) connections on both ends, sized for 1-1/4-inch pipe. Both sockets accept standard 1-1/4" Schedule 40 or Schedule 80 PVC pipe via solvent cement, producing a permanent, pressure-rated 45° directional change within a fully bonded solvent-welded system. The 45° sweep angle makes this elbow the preferred choice over a 90° elbow wherever a gradual directional change is acceptable — the shallower bend reduces turbulence, lowers pressure drop, and places less mechanical stress on the pipe run compared to a sharp 90° turn, which is a meaningful advantage in high-flow systems, long cemented runs, and process piping installations where hydraulic efficiency and joint integrity are both design priorities.

In addition to single-bend applications, the 817-012 sees frequent use in the two-45°-elbow offset technique — a standard field method for stepping a pipe run around a structural obstruction, existing pipe, or piece of equipment without the abrupt reversal geometry of paired 90° elbows. In drainage, gravity-flow, and low-velocity process lines, the 45° sweep is also the preferred elbow type at directional changes to maintain flow velocity and reduce the risk of particulate accumulation at the bend.

Manufactured from heavy-wall Schedule 80 PVC, the 817-012 delivers greater wall thickness and mechanical strength than the Schedule 40 equivalent (417-012), making it the appropriate choice for industrial, chemical, and elevated-pressure service environments where a solvent-cemented 45° bend with Schedule 80 ratings is specified. The dark gray color is standard for Schedule 80 PVC and allows immediate visual identification in mixed-schedule installations. Apply a medium-bodied PVC primer and standard-bodied PVC cement per ASTM D2564 to both the pipe end and socket interior before assembly; ensure full pipe insertion to the socket stop and maintain joint alignment during the cure set period.

Specifications:

Industries & Applications:

• Industrial Process Piping — Provides a low-turbulence 45° directional change in 1-1/4" Schedule 80 PVC process lines handling corrosive chemicals, acids, or aggressive fluids where the shallower sweep angle reduces pressure drop and mechanical stress on cemented joints in demanding service environments.
• Chemical Processing & Water Treatment — Used at pipeline offsets, equipment bypasses, and header transitions in Schedule 80 PVC chemical feed, metering, and treatment systems where hydraulic efficiency at directional changes supports consistent process flow and reduces wear on downstream components.
• Municipal & Commercial Plumbing — Provides a gradual 45° directional change in 1-1/4" Schedule 80 supply and service piping in commercial mechanical rooms, utility spaces, and institutional plumbing systems where heavier wall construction and reduced bend turbulence are both specified.
• Irrigation & Agricultural Systems — Installed at mainline offsets, pump discharge transitions, and pipeline route changes in 1-1/4" Schedule 80 cemented systems where the 45° sweep maintains flow velocity, minimizes head loss, and reduces stress on solvent-cemented joints across long runs.
• Pool & Spa Equipment Rooms — Used at equipment pad transitions, chemical feed line offsets, and pipeline route changes in 1-1/4" Schedule 80 cemented systems where the shallower sweep angle supports pump performance and reduces flow resistance in high-demand circulation assemblies.
• Drainage & Gravity-Flow Systems — Preferred over 90° elbows at directional changes in gravity-flow drainage, condensate, and low-velocity process discharge lines where the 45° angle maintains flow velocity and reduces the risk of particulate accumulation or blockage at the bend.