90 Degree Street Elbow, Slip x Slip PVC Schedule 40 10" (409-100)

The 10" Schedule 40 White PVC 90 Degree Street Elbow (409-100, Slip x Spigot) is a large-diameter, specialty directional change fitting manufactured to ASTM D2466 in Schedule 40 white PVC — a street elbow configuration in which one end is a standard female socket connection that accepts 10" IPS PVC pipe in the conventional solvent cement socket assembly, and the other end is a male spigot connection whose outside diameter matches 10" IPS PVC pipe and that inserts directly into the female socket of any compatible 10" Schedule 40 or Schedule 80 PVC fitting — a tee, coupling, elbow, reducing fitting, valve body, or any other 10" socket-ended PVC component — without a section of pipe between the two fitting bodies. This male spigot end is the defining characteristic that distinguishes the street elbow from the standard Schedule 40 PVC 90-degree socket elbow at the same pipe size, and it is the characteristic that makes the 409-100 the correct directional change fitting at every 10" PVC primary main routing location where two consecutive 10" fittings must be connected directly without an intervening pipe spool — where the spatial envelope available for the direction change assembly is too confined to accommodate the standard socket elbow's required minimum spool length between fitting sockets, where the hydraulic design benefits from eliminating the straight pipe run between consecutive direction change fittings in a compact routing assembly, or where the piping layout requires a fitting-to-fitting connection geometry that the standard socket elbow cannot provide without an additional pipe nipple or cut spool whose length is constrained to below practical minimum cut lengths at the 10" pipe size. The 409-100 accomplishes a 90-degree direction change on a 10" Schedule 40 PVC primary main while simultaneously functioning as its own male spigot connector to the next fitting in the assembly — a dual-function geometry that is unique to the street elbow fitting type and unavailable in any standard socket or threaded elbow configuration at any schedule or pipe size in the commercial PVC fitting line.

The street elbow's defining geometry — one female socket end and one male spigot end — requires precise understanding before specification to ensure the correct orientation and assembly sequence at every installation. The female socket end of the 409-100 functions identically to the socket end of any standard 10" Schedule 40 PVC socket fitting: 10" IPS PVC pipe — Schedule 40 or Schedule 80 — is primed, cemented, and inserted into the socket to the full socket depth, forming a permanent solvent cement bond at the pipe-to-fitting socket interface that is mechanically and hydraulically equivalent to any other 10" Schedule 40 PVC socket joint in the primary main. The male spigot end functions differently: rather than accepting pipe into a socket cavity, the spigot end itself — which has the same outside diameter as 10" IPS PVC pipe — is primed, cemented, and inserted into the socket of the adjacent 10" fitting to the full socket depth of that fitting's socket, forming a permanent solvent cement bond at the spigot-to-socket interface that is mechanically and hydraulically equivalent to a pipe-to-socket joint at the same nominal pipe size. The result is a direct fitting-to-fitting solvent cement connection at the spigot end — the two fitting bodies are separated only by the depth of the receiving fitting's socket rather than by a full pipe spool length, reducing the centerline-to-face dimension of the back-to-back fitting assembly to its absolute minimum at the 10" pipe size and creating the most compact 90-degree direction change assembly achievable in the Schedule 40 PVC socket fitting line without custom fabrication. This compact assembly geometry is the 409-100's primary specification advantage over the standard 90-degree socket elbow — not merely a convenience but a geometrically necessary solution at confined-space routing locations in large-diameter 10" primary main systems where the standard socket elbow configuration physically cannot be assembled without spool lengths the spatial envelope does not permit.

The assembly sequence at the spigot end of the 409-100 must be planned before any cement application begins because the male spigot inserts into the receiving fitting's socket and the receiving fitting's socket depth — not the street elbow's dimensions — determines the insertion depth at the spigot connection. The installer must confirm the receiving fitting's socket depth at the 10" nominal size before priming and cementing the spigot connection, apply heavy-body solvent cement to the full circumference and length of the spigot end and to the full interior socket cavity of the receiving fitting simultaneously within the working time available for the 10" bonding surfaces, insert the spigot fully into the receiving fitting's socket to the confirmed insertion depth, and maintain insertion pressure throughout the initial set period to prevent the fitting from backing out of the receiving socket before the initial bond forms. The critical assembly distinction at the spigot end relative to the standard socket end is that the receiving fitting's socket — not the street elbow's spigot — determines the assembly geometry, and the receiving fitting must be confirmed as compatible with the 409-100's spigot outside diameter before the assembly sequence begins. The 409-100's spigot outside diameter matches 10" IPS PVC pipe — the same dimension that every 10" Schedule 40 and Schedule 80 PVC socket fitting's socket is dimensioned to receive — making the spigot end of the 409-100 compatible with the socket of any standard 10" IPS Schedule 40 or Schedule 80 PVC socket fitting in the commercial PVC fitting line without dimensional verification beyond confirmation of the nominal pipe size. At the female socket end of the 409-100, the standard large-diameter socket assembly discipline applies in full: heavy-body solvent cement, full circumferential coverage, complete pipe insertion to socket depth, maintained insertion pressure through initial set, and full cure time compliance before pressurization — all mandatory at the 10" socket connection regardless of the spigot connection's compact geometry at the opposite end of the fitting.

The 409-100 at the 10" nominal size is the largest Schedule 40 PVC street elbow in the standard commercial Schedule 40 PVC fitting line — a large-diameter street elbow that serves the primary main routing and manifold assembly applications where the street elbow geometry is most consequential to the piping design. At 10" IPS, the street elbow's elimination of the pipe spool between back-to-back fitting connections provides its most practically significant spatial savings — a 10" minimum cut pipe spool is a substantial physical element in any confined piping assembly, and the street elbow's direct fitting-to-fitting geometry at the spigot end eliminates this element entirely. In pump station wet wells and valve vaults where 10" primary main piping must navigate multiple direction changes within the constrained dimensional envelope of the vault structure, the 409-100 enables compact back-to-back elbow assemblies, direct fitting-to-valve connections, and tight-radius multi-elbow routing configurations that would require pipe spools too short to safely cement with conventional assembly methods if standard socket elbows were used throughout. In primary main riser assemblies at pump station wall penetrations, meter vault connections, and pressure zone boundary structures, the 409-100 enables the directional transitions from buried horizontal primary main to riser pipe to above-ground piping connections to be accomplished within the physical dimensions of the structure's penetration sleeve and connection envelope without the pipe spool additions that standard socket elbows would require. In irrigation pump station primary header assemblies and manifold configurations where multiple 10" fittings must be arranged in compact sequential configurations, the 409-100 eliminates the accumulated spool lengths between consecutive fittings that would otherwise add to the total manifold length and potentially push the manifold assembly beyond the available equipment room or pump station structure dimensions.

The central specification decision the 409-100 requires — beyond the street elbow geometry's application suitability assessment — is the schedule selection appropriate to the system's operating conditions, identical in framework to the schedule selection guidance established across all 10" Schedule 40 PVC socket fitting pages in the Maxx-Supply catalog. Schedule 40 is the correct and cost-effective specification where the system's design operating pressure, surge allowance, and engineering safety margin requirements fall within the Schedule 40 pressure ceiling at the 10" fitting size, where the system specification does not mandate Schedule 80 gray PVC throughout, and where the design engineer has confirmed that Schedule 40 wall thickness and white material class identification satisfy all engineering requirements at this primary main street elbow location. Where the system requires Schedule 80 wall thickness, gray material class identification, or the higher pressure ceiling that Schedule 80 provides at large-diameter fittings, the Schedule 80 counterpart at the 10" street elbow configuration is the correct specification. At the 10" size — a large-diameter primary main fitting where operating pressures, surge conditions, and safety margin requirements are primary engineering design parameters — the schedule selection must be confirmed explicitly against the system's pressure performance requirements before the 409-100 is finalized as the correct material class at the street elbow location.

Schedule 40 white PVC construction provides the chemical resistance, NSF certification, and structural capability appropriate for large-diameter primary main service within the Schedule 40 pressure envelope. PVC Type 1 Grade 1 construction with cell classification 12454 per ASTM D1784 delivers broad chemical resistance across water treatment chemicals, process water service, industrial utility water, and the full range of non-solvent process fluids appropriate for Schedule 40 PVC primary main service. The white color provides the Schedule 40 material class identification at the direction change location — confirming the installed material class for inspectors, maintenance engineers, and facility managers at the primary main's compact routing assemblies and distinguishing the installed fitting from gray Schedule 80 components elsewhere in the system. NSF 61 certification lists this fitting for potable water contact, and NSF 14 covers compliance with applicable plastics piping material standards. ASTM D2466 governs Schedule 40 PVC socket fittings and defines the manufacturing, dimensional, and pressure performance requirements the 409-100 is produced to. Verify manufacturer pressure rating documentation for the specific fitting configuration before final system specification — the governing pressure rating must be confirmed against the manufacturer's published pressure-temperature rating table for SKU 409-100 before installation in systems at or near the fitting's rated pressure ceiling.

Key Features:

• Schedule 40 white PVC 90-degree street elbow — 10" socket (female slip) x spigot (male slip) ends; Spears 409 series Schedule 40 PVC 90-degree street elbow
• Street elbow configuration — male spigot end inserts directly into the socket of an adjacent 10" PVC fitting; eliminates pipe spool between back-to-back fitting connections; most compact 90-degree direction change assembly achievable in the Schedule 40 PVC socket fitting line at 10"
• Male spigot end OD matches 10" IPS PVC pipe — compatible with the socket of any standard 10" IPS Schedule 40 or Schedule 80 PVC socket fitting without dimensional modification
• Correct over standard 90-degree socket elbow where spatial envelope does not permit pipe spool between consecutive fittings, where fitting-to-fitting direct connection is required, or where minimum spool lengths at 10" are impractical within the assembly's dimensional constraints
• Largest standard Schedule 40 PVC street elbow in the commercial fitting line — 10" nominal size serves primary main pump station, vault, manifold, and confined-space routing applications where the street elbow geometry provides its most significant spatial and assembly advantages
• Both the socket end and the spigot end require heavy-body solvent cement and full cure time compliance — the spigot end cement is applied to the spigot and the interior of the receiving fitting's socket simultaneously; confirm receiving fitting socket depth before assembly
• Direction confirmation before cement application is mandatory — the 409-100's 90-degree exit direction is fixed at cement application; confirm exit alignment and downstream pipe routing by dry-fit before applying cement to either connection
• Schedule 40 vs. Schedule 80 selection: verify system operating pressure, surge, and safety margin requirements against Schedule 40 pressure ceiling before confirming 409-100 over Schedule 80 counterpart
• Manufactured to ASTM D2466 — governing standard for Schedule 40 PVC socket fittings
• NSF 61 certified for potable water contact; NSF 14 listed
• Cell classification PVC 12454 per ASTM D1784
• White color — standard Schedule 40 material class identification
• Pressure rating: verify against manufacturer pressure-temperature table for SKU 409-100

Specifications:

Industries & Applications:

• Pump Station — Confined Wet Well, Valve Vault, and Equipment Room Primary Main Compact Routing Assemblies — The 10" Schedule 40 PVC 90-degree street elbow is specified at direction change locations in pump station wet wells, valve vaults, and equipment rooms where the 10" primary main piping must navigate multiple direction changes within the constrained dimensional envelope of the pump station structure and the spatial clearances between consecutive fitting connections do not permit the pipe spool sections that standard 90-degree socket elbows require between back-to-back fittings; pump station wet well primary header routing where horizontal 10" primary mains entering the wet well through wall penetrations must transition to vertical riser pipe or horizontal manifold headers within the wet well's dimensional limits — the 409-100's direct fitting-to-fitting spigot connection at the first direction change after the wall penetration fitting eliminates the pipe spool that a standard socket elbow would add to the transition assembly, keeping the direction change within the physical envelope of the penetration sleeve and the wet well's wall clearance zone; valve vault 10" primary main routing assemblies where isolation valves, check valves, pressure reducing valve assemblies, and meter connections are arranged in compact sequential configurations within the vault's dimensional footprint — the 409-100's direct spigot-to-socket connection at each direction change fitting in the vault assembly reduces the accumulated length of the multi-fitting assembly and preserves the dimensional clearances between adjacent valve bodies and vault walls; pump station equipment room primary header assemblies where 10" primary manifold piping must accommodate multiple 90-degree direction changes within the equipment room's floor plan and structural column clearances — the street elbow's fitting-to-fitting geometry enables compact multi-elbow routing configurations that keep the primary manifold assembly within the equipment room's designated piping corridor; and pump station discharge header assemblies at the transition from pump unit discharge flanges to primary header connections where compact directional transitions between the pump's discharge orientation and the primary header's routing direction require direction changes in confined clearances that standard socket elbows with spool requirements cannot accommodate; Schedule 40 white PVC construction satisfies the material class requirements at pump station primary main compact routing assemblies where Schedule 40 is the system material standard and operating pressures, shut-off head, and surge conditions fall within the Schedule 40 pressure ceiling at the 10" fitting size
• Municipal Water Distribution — Primary Main Vault, Structure Entry, and Confined Routing Direction Changes — Installed at direction change locations on 10" municipal water transmission and primary distribution mains where the primary main routing must navigate the dimensional constraints of buried vaults, meter structures, pressure reducing valve stations, and service connection assemblies in confined underground structures — 10" primary mains entering pressure reducing valve stations and meter vaults through wall penetrations where the direction change from buried horizontal main to interior station piping must be accomplished within the limited clearance between the penetration sleeve and the adjacent valve or meter body; underground service connection assemblies where 10" primary main branch connections in confined vault structures require compact direction changes between the primary main stub, the isolation valve, and the downstream service lateral connection within the vault's internal dimensions; buried junction vault assemblies where 10" primary mains from multiple directions must be connected through compact directional transitions within a precast vault structure whose internal dimensions are fixed by the vault manufacturer's standard sizes; pressure zone boundary structures where 10" primary mains transition between pressure zones through pressure reducing valve assemblies requiring compact inlet and outlet directional transitions in confined vault enclosures; and municipal water distribution primary main above-grade metering and monitoring station assemblies where 10" primary main connections to large commercial service meters, magnetic flow meters, and monitoring instrumentation require compact directional transitions between the buried primary main riser and the above-grade meter assembly within the station's structural footprint; NSF 61 listing confirms potable water fitness at every municipal water distribution primary main compact routing direction change; Schedule 40 white PVC satisfies the material class and pressure requirements at municipal primary main vault and structure routing assemblies where Schedule 40 construction is specified
• Water Treatment Plant — Primary Header Compact Routing and Equipment Connection Directional Transitions — Used at direction change locations on 10" primary distribution headers in municipal and industrial water treatment plants where the primary header routing must navigate the compact piping corridors, equipment clearance zones, and structural constraints of the treatment facility at locations where consecutive fitting connections cannot accommodate the spool pieces that standard 90-degree socket elbows require — filter gallery primary header assemblies where the 10" influent or effluent header must make multiple consecutive direction changes through filter gallery structural bays within the dimensional clearances between filter wall penetrations and filter manifold valve bodies; clearwell supply header assemblies where 10" primary distribution headers must transition from buried distribution mains to above-grade clearwell inlet connections through compact directional transitions in confined below-grade pipe chases; pump station primary header discharge assemblies within water treatment plant pump rooms where compact 10" primary header routing between pump discharge flanges and primary distribution headers must accommodate direction changes in the limited clearance between pump units and primary distribution piping; chemical dosing system primary supply connections where 10" primary headers supply chemical injection manifolds in confined mechanical room spaces requiring compact directional transitions between the primary header route and the injection manifold assembly orientation; and backwash primary supply header assemblies where compact directional transitions between the 10" backwash supply main and individual filter backwash inlet connections must be accomplished within the filter gallery's dimensional constraints; NSF 61 listing confirms potable water fitness at every water treatment plant primary distribution compact routing direction change in Schedule 40 PVC systems
• Large Commercial & Agricultural Irrigation — Pump Station Manifold, Primary Main Riser, and Confined Structure Routing Assemblies — Specified at direction change locations in large commercial irrigation pump station equipment rooms, primary manifold assemblies, and buried structure connections where the 10" primary main or manifold header must navigate multiple direction changes in the confined spatial envelopes of the pump station structure or underground irrigation infrastructure — irrigation pump station primary manifold assemblies where 10" pump discharge headers, distribution headers, and manifold components are arranged in compact parallel configurations within the pump station building's equipment room, and the accumulated spool lengths of standard socket elbows between consecutive manifold direction changes would push the manifold assembly beyond the equipment room's available floor plan; pump station primary discharge header transitions where 10" pump unit discharge connections must transition to horizontal primary header routing through compact directional assemblies in the limited clearance between the pump unit discharge flanges and the primary header's routing corridor; buried irrigation primary main assemblies at pressure sustaining valve vaults, pressure reducing valve stations, and booster pump station inlets where the 10" primary main must accommodate direction changes between the buried primary main and the vault structure's internal piping layout within the vault's fixed internal dimensions; irrigation primary main riser assemblies at above-grade access points, flow meter stations, and primary isolation valve structures where compact directional transitions from buried horizontal primary main to vertical riser pipe to above-grade connection must be accomplished within the structural sleeve's dimensional clearances; and large-scale irrigation system primary manifold assemblies at pump station outlet headers where multiple parallel 10" primary distribution paths must be connected through compact directional transitions in the manifold's dimensional footprint; at large commercial irrigation systems where the pump station equipment room and manifold assembly space is a premium and every fitting's dimensional contribution to the manifold length affects the station's spatial design, the 409-100's fitting-to-fitting geometry is a meaningful dimensional economy at the 10" primary main manifold level
• Industrial Process Piping — Primary Header Confined Equipment Room and Process Corridor Compact Routing — Specified at direction change locations on 10" process water primary headers, cooling water primary distribution trunks, and plant utility water primary mains in manufacturing plants, chemical processing facilities, and heavy industrial environments where the primary header routing must navigate the dense equipment layouts, structural constraints, and compact piping corridors of industrial process facilities at direction change locations where standard socket elbows' spool requirements create assembly geometry that exceeds available clearances — process equipment room primary header routing where 10" process water supply headers must transition between equipment rack routing corridors and process equipment connection points through compact directional assemblies in the limited clearance between adjacent equipment racks and structural columns; cooling water primary header assemblies at heat exchanger battery connections where compact directional transitions between the 10" cooling water supply trunk and individual heat exchanger battery headers must be accomplished within the heat exchanger bay's equipment clearance zones; utility water primary header routing through confined below-grade pipe chases and equipment pads where consecutive 90-degree direction changes in the 10" primary header must fit within the chase's dimensional envelope; and primary header transition assemblies at equipment room boundaries where 10" headers must transition from above-grade piping rack routing to below-grade slab penetrations through compact directional assemblies in the limited clearance between the equipment room slab and the above-grade piping rack structure; the 409-100's direct spigot-to-socket connection geometry at the direction change point eliminates the accumulated spool additions that standard socket elbows would contribute to the compact industrial process header routing assembly at each consecutive direction change location
• Municipal Well Field — Pump Station and Well Head Structure Compact Routing Assemblies — Used at direction change locations in municipal and commercial well field pump station structures and well head assemblies where 10" primary collection or distribution headers must navigate compact directional transitions in the constrained dimensional envelopes of pump station equipment rooms and well head structures — well field pump station primary discharge header assemblies where 10" pump unit discharge connections must transition to horizontal primary collection header routing in the limited clearance between pump unit discharge flanges and the primary collection header's routing corridor within the pump station building; well head structure primary connection assemblies where 10" primary collection pipe transitions from vertical well column riser to horizontal collection header through compact directional assemblies in the confined above-grade well head structure; primary distribution header assemblies at pressure sustaining valve vaults and pressure reducing stations where compact 10" primary distribution header transitions from buried mains to above-grade station piping must accommodate direction changes within the vault or station structure's fixed dimensional constraints; and booster pump station primary header assemblies where compact 10" primary suction and discharge header routing must navigate multiple direction changes in the limited floor plan of the booster station building; well field pump station operating pressures and shut-off head conditions must be explicitly confirmed within the Schedule 40 pressure ceiling at the 10" fitting size before the 409-100 is confirmed as the correct schedule specification at well field primary header compact routing locations
• Water & Wastewater Treatment — Primary Process Header Compact Routing and Equipment Connection Assemblies — Installed at direction change locations on 10" primary process distribution headers in industrial wastewater treatment, water reclamation, and large-scale industrial water management facilities where compact directional transitions in confined treatment plant piping corridors, equipment rooms, and below-grade pipe chases require the street elbow's direct fitting-to-fitting spigot geometry — primary influent and effluent header routing in confined treatment plant pipe galleries where consecutive 90-degree direction changes in the 10" primary process header must fit within the pipe gallery's cross-sectional dimensions and the spool additions of standard socket elbows would exceed the gallery's available clearances; pumping station primary header assemblies within treatment facility pump rooms where compact 10" primary header transitions between pump discharge flanges and primary distribution headers must be accommodated within the pump room's dimensional constraints; chemical distribution primary header assemblies at confined chemical storage room and dosing equipment room pipe connections where compact 10" primary header directional transitions must fit within the dimensional constraints of the chemical handling facility's structural and safety clearance zones; and dewatering and sludge handling primary header routing in confined below-grade mechanical spaces where multiple consecutive direction changes in the 10" primary header must be accomplished within the mechanical space's cross-sectional dimensions; Schedule 40 white PVC handles the chemical service and process fluid conditions at 10" primary distribution compact routing locations in treatment environments where Schedule 40 satisfies the operating pressure and material specification requirements
• HVAC & Large Commercial Mechanical Systems — Primary Distribution Main Compact Mechanical Room and Riser Routing — Specified at direction change locations on 10" primary chilled water distribution mains, condenser water primary trunks, and large-capacity hydronic heating and cooling primary distribution headers in large commercial campus, institutional, and industrial mechanical systems where primary distribution main routing through mechanical rooms, riser shafts, and equipment rooms requires compact directional transitions in confined spatial envelopes — large building mechanical room primary distribution header assemblies where 10" primary chilled or condenser water headers must navigate multiple 90-degree direction changes between primary distribution trunk routing and individual building loop supply connections within the mechanical room's equipment clearance zones; campus primary distribution main riser assemblies in central plant buildings where 10" primary distribution mains must transition from horizontal below-grade distribution to vertical riser pipe to above-grade building connection through compact directional assemblies within the riser shaft's cross-sectional dimensions; primary distribution header assemblies at large campus chiller plant discharge connections where compact 10" primary distribution header transitions between chiller unit discharge connections and primary distribution trunk headers must be accomplished within the chiller plant's equipment room dimensional constraints; and primary distribution header routing in confined above-grade pipe chase spaces at large commercial buildings and campus facilities where consecutive 90-degree direction changes in the 10" primary distribution header must fit within the pipe chase's cross-sectional dimensions without the pipe spool additions that standard socket elbows would require between consecutive direction changes; the 409-100's compact fitting-to-fitting geometry enables the most space-efficient primary distribution header routing assemblies achievable in the Schedule 40 PVC socket fitting line at the 10" primary distribution main service size