45 Degree Elbow, FPT x FPT PVC Schedule 80 2-1/2" (819-025)

The 2-1/2" PVC Schedule 80 45 Degree Elbow (Part No. 819-025) is a pressure-rated, gray-body fitting designed to redirect a Schedule 80 PVC piping system through a 45-degree change in direction on a fully threaded pipe run. The FPT x FPT (female pipe thread) configuration accepts male-threaded pipe ends, nipples, or fittings on both ports, making this elbow the correct specification wherever a directional change is required on a threaded PVC system without transitioning to solvent-cemented connections at either end.

The 45-degree geometry is the defining characteristic that distinguishes this elbow from a 90-degree elbow in system design. Where a 90-degree elbow makes a sharp, perpendicular turn, the 45-degree elbow redirects flow at a shallower angle — producing a gentler directional change that results in lower turbulence, reduced pressure drop, and less flow resistance at the bend compared to a 90-degree equivalent. This hydraulic advantage makes the 45-degree elbow the preferred specification in systems where minimizing head loss at direction changes is a design priority, in high-velocity flow applications where the abrupt energy loss of a 90-degree turn is undesirable, and in routing situations where a gradual offset is needed to navigate around structural elements, equipment, or other piping without a sharp perpendicular turn.

The FPT x FPT connection type reflects a deliberate system design decision — both ports receive male-threaded pipe or fittings, placing this elbow entirely within the threaded portion of a PVC piping assembly. Threaded Schedule 80 systems are common in applications requiring frequent disassembly, installations where solvent cementing is impractical, and environments where individual fittings and pipe sections may need to be replaced independently without cutting into a cemented run.

At 2-1/2", this elbow bridges the more standard 2" and 3" nominal sizes — a specification that appears in mid-scale industrial loops, commercial mechanical rooms, and municipal systems where flow calculations or equipment port sizing land between the common offerings. The 2-1/2" size is less universally stocked than adjacent sizes, meaning buyers sourcing this fitting are typically on a specific project requirement or replacement scenario with confirmed size and schedule specifications.

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. Thread form on both ports conforms to ANSI B1.20.1 NPT.

Specifications:

Industries & Applications:

• Industrial & Chemical Processing — Gentle directional changes on fully threaded chemical-resistant PVC pressure lines where minimizing head loss at direction changes and maintaining disassembly access are both system requirements
• Municipal Water & Wastewater — 45-degree offsets on 2-1/2" threaded treatment, metering, and distribution lines where a gradual directional change is preferred over a sharp 90-degree turn for flow efficiency
• Commercial Plumbing — Threaded Schedule 80 mechanical room and equipment room piping where a 45-degree elbow navigates obstructions or routes pipe along structural elements more efficiently than a 90-degree alternative
• Irrigation — Pump station and mainline directional changes on threaded 2-1/2" irrigation systems where the 45-degree angle reduces pressure drop at the bend in high-flow applications
• Mining & Oil Field — Corrosive fluid handling systems on fully threaded PVC infrastructure requiring a durable, chemical-resistant directional fitting with lower flow resistance than a 90-degree elbow
• Power Generation & Utilities — Cooling water and process fluid systems where 2-1/2" threaded PVC lines require a gradual directional change at equipment connections, structural offsets, or system routing transitions
• Aquaculture & Water Treatment — Recirculating system headers and distribution mains on threaded 2-1/2" PVC assemblies where a 45-degree directional change minimizes turbulence and pressure loss in flow-sensitive applications