45 Degree Street Elbow, Slip x Slip 10" (C623-100)

The 10" PVC Class 125 45 Degree Street Elbow (C623-100) is a large-diameter, slip-connection fitting that executes a 45-degree directional change while simultaneously eliminating the need for an intervening pipe spool between consecutive fittings — the defining characteristic that distinguishes a street elbow from a standard elbow at every pipe size. One end of the C623-100 is configured as a spigot, machined to the outside diameter of 10" Class 125 pipe and designed to insert directly into the socket of any standard 10" Class 125 receiving fitting, while the other end is a conventional slip socket that receives a 10" pipe or fitting spigot. This spigot-and-socket geometry allows the street elbow to connect directly fitting-to-fitting without cutting and cementing a separate pipe spool between them — a practical advantage that reduces installed component count, minimizes the installation footprint at the direction change, and speeds up assembly in tight or access-restricted piping configurations.

The distinction between a standard 45-degree elbow and a street elbow is most consequential in large-diameter systems where every additional pipe spool requires precise cut length, separate solvent-weld joints, and additional cure time before pressurization. At 10" diameter, each solvent-weld joint represents a significant execution commitment — the C623-100 eliminates two of those joints at fitting-to-fitting connection points by allowing the elbow spigot to engage directly into the socket of the adjacent fitting, whether that fitting is another elbow, a tee, a coupling, or a reducer.

The 45-degree bend geometry delivers the hydraulic and routing advantages consistent with all shallow-angle elbows at large diameters — measurably lower head loss, reduced flow turbulence, and a more gradual direction change than a 90-degree elbow at the same pipe size. At 10" diameter and high system flow velocities, the pressure differential between a 45-degree and 90-degree directional change is hydraulically meaningful and warrants consideration in transmission main and high-volume irrigation system designs where minimizing pressure drop across direction changes contributes to overall system efficiency and operating cost.

Two 45-degree street elbows can be combined in series — with or without a short pipe spool between them depending on geometric requirements — to achieve a full 90-degree direction change with lower combined head loss than a single 90-degree elbow, while the street elbow configuration enables one or both elbows in the pair to connect directly to adjacent fittings without intermediate spools. Manufactured from virgin PVC compound meeting ASTM D2466 dimensional standards, the C623-100 provides the wall thickness uniformity, socket depth, and dimensional consistency required to produce reliable solvent-weld joints and sustain rated performance across the full service life of the installation at this large pipe size.

Specifications:

Heavy-bodied solvent cement is required for all 10" solvent-weld joints including the spigot OD connection. The spigot OD is dimensioned to 10" Class 125 pipe OD — confirm that the receiving fitting socket is a 10" Class 125 socket to ensure correct interference fit and rated joint integrity at the spigot end. Allow full extended cure time before pressurizing or backfilling — 10" socket and spigot joints require significantly longer cure schedules than small-bore fittings; do not apply standard small-bore cure guidance to 10" assemblies. Thrust restraint or thrust blocking must be evaluated at all elbow locations in pressurized buried systems at this diameter — even at 45 degrees, unbalanced thrust forces at 10" under Class 125 pressure are substantial. Pressure-temperature derating applies at elevated service temperatures per ASTM standards.

Industries & Applications:

• Municipal Water Distribution — Compact 45-degree direction changes on 10" transmission and primary distribution mains at fitting-to-fitting connection points where eliminating an intervening pipe spool reduces installation time, minimizes solvent-weld joint count, and simplifies below-grade assembly at road crossings, grade transitions, pump station headers, and routing constraint locations
• Agricultural & Large-Scale Irrigation — 10" mainline trunk routing on large farms, golf courses, and managed landscape campuses where terrain transitions and layout constraints require shallow-angle direction changes at fitting-adjacent locations where the street elbow spigot connects directly into a tee, coupling, or valve body socket without a separate spool piece
• Industrial Process Piping — High-volume fluid transfer systems requiring compact 45-degree directional transitions at skid boundary fittings, manifold outlet connections, equipment inlet ports, and process area routing points where the street elbow spigot inserts directly into the adjacent fitting socket to minimize the piping footprint at the direction change
• Water & Wastewater Treatment — Plant process piping directional transitions on 10" distribution headers, filter influent and effluent mains, and aeration supply lines where fitting-to-fitting 45-degree changes at manifold outlets or equipment connection points benefit from the reduced joint count and compact geometry of the street elbow configuration
• Pump Station & Booster Facilities — Compact directional transitions at 10" pump discharge manifold outlets, valve body connections, and header routing changes within pump station piping configurations where space constraints and fitting density make the spool-eliminating street elbow geometry especially practical
• Stormwater & Flood Control Infrastructure — Large-diameter gravity or low-pressure stormwater conveyance systems requiring compact 45-degree directional changes at structure connections, basin inlet fittings, and below-grade routing transitions where eliminating pipe spools between fittings reduces burial depth requirements and simplifies confined installation work
• Fire Protection Supply Mains — 10" underground or above-grade fire suppression supply mains requiring compact 45-degree transitions at pump house headers, system entry points, or routing correction locations where the street elbow allows direct fitting engagement without intermediate spool fabrication
• Aquaculture & Water Management — High-flow recirculation, intake, or discharge piping systems requiring compact 45-degree directional changes at pump station fittings, treatment system inlet connections, or facility boundary transition points in large-volume water management installations where fitting count minimization simplifies both installation and long-term maintenance access