45 Degree Elbow, Slip x Slip PVC Schedule 80 1-1/2" (817-015)

The 817-015 is a 1-1/2" PVC Schedule 80 45-degree elbow with solvent-weld slip ends on both sides, designed to redirect flow at a 45-degree angle within a PVC piping system. Where a 90-degree elbow makes a sharp right-angle turn, the 45-degree elbow executes a gentler half-turn offset — a distinction that carries meaningful consequences for system performance, particularly in higher-flow or pressure-sensitive applications.

The shallower bend angle of a 45° elbow produces a lower resistance to flow than its 90° counterpart. The more gradual direction change reduces turbulence at the fitting, lowers the equivalent length of pipe resistance contributed by the elbow, and results in less pressure drop across the transition. In systems where maintaining adequate flow velocity or minimizing pump head requirements matters — irrigation mains, recirculating process lines, pump suction piping, or long distribution runs — substituting 45° elbows for 90° turns wherever geometry allows is a straightforward efficiency gain.

Two 817-015 elbows are commonly used together to route pipe around an obstruction or offset between parallel pipe centerlines without the abruptness of a 90-degree jog. This rolling offset configuration is a standard technique in mechanical and industrial piping, and the 45° slip elbow is the primary fitting that makes it possible in PVC systems.

Schedule 80's heavier wall construction provides a 330 PSI pressure rating at 1-1/2" and significantly greater resistance to mechanical impact, UV degradation, and thermal stress than Schedule 40 at the same size. Manufactured from rigid PVC Type I, Grade I (Cell Classification 12454) to ASTM D2467, the 817-015 resists corrosion from a broad range of acids, bases, salts, and industrial chemicals. NSF/ANSI 61 certification confirms suitability for potable water contact.

The slip end configuration requires no threading; solvent cement installation with appropriate PVC primer and cement produces a permanent, leak-free joint with pressure integrity meeting or exceeding the pipe itself.

Specifications:

Industries & Applications:

• Industrial & Chemical Processing — Gradual 45° direction changes in corrosive process lines where minimizing pressure drop and turbulence at directional transitions supports consistent flow rates and reduces pump load
• Irrigation & Agricultural Systems — Efficient routing of 1-1/2" mainlines and sub-mains around field obstacles, structures, and grade changes using rolling offset configurations with paired elbows
• Pump Suction Piping — 45° elbows on pump suction lines reduce entrance losses and turbulence that can contribute to cavitation — a well-established best practice in pump system design
• Water Treatment & Distribution — NSF 61 listing supports potable water use; 45° transitions are preferred at treatment equipment connections and distribution headers where flow efficiency is a design priority
• Commercial & Mechanical Plumbing — Pipe routing through walls, ceilings, and mechanical rooms where a 45° offset provides a cleaner, lower-restriction path than a 90° turn
• Pool, Spa & Aquaculture Systems — Corrosion-free directional transitions in recirculating water systems where flow rate and pump efficiency are ongoing operational considerations
• HVAC & Chilled Water Systems — Direction changes in PVC-piped chemical treatment feed lines, cooling tower makeup, and condensate systems where hydraulic efficiency is valued