Elbow, 90 Degree Street, Spigot x FPT PVC Schedule 40 1" (411-010)

This 1" Schedule 40 PVC 90 Degree Street Elbow (Spigot x FPT) combines a compact socket-inlet right-angle turn with a female-threaded outlet in a single fitting body — cementing directly into an existing socket fitting hub on the inlet side and providing a 1" female NPT-threaded connection on the outlet side for a male-threaded component, nipple, valve, or equipment port. Constructed in white Schedule 40 PVC, it eliminates both the intermediate pipe section required by a standard Slip x Slip 90-degree elbow and the separate socket-to-thread adapter that would otherwise be needed at the threaded outlet — producing the most compact possible right-angle socket-to-thread transition at any 1" socket fitting hub in an all-cemented assembly.

The spigot (male plain end) inlet is sized to insert directly into the hub of any standard 1" socket-end fitting — tee branch outlet, cross port, coupling end, elbow outlet, side outlet elbow port, or valve body — and is solvent-cemented in place to form a permanent, leak-free joint at the outer face of the hub. The 1" FPT outlet accepts any standard 1" male NPT-threaded fitting, nipple, valve, solenoid inlet, zone valve, pressure gauge, or equipment connection, providing a female-threaded termination perpendicular to the upstream socket fitting hub in a single compact body. This Spigot x FPT mixed-connection configuration is the correct choice when a right-angle direction change and a socket-to-threaded material transition must occur simultaneously at the same fitting hub location — as opposed to the 409-010 (Spigot x Slip, all-socket), which provides a socket outlet for a continuing PVC pipe run rather than a threaded component, or the 412-010 (MPT x FPT, all-threaded), which threads into a female port rather than cementing into a socket hub. The 411-010 is the functional inverse of the 410 series (MPT x Slip) — where the 410 series transitions from a threaded assembly into a socket pipe run at a right-angle turn, the 411-010 transitions from a socket assembly into a threaded component; together these two series address both directions of the socket-to-thread 90-degree mixed-connection transition at the 1" diameter. At 1", this is the highest-demand application size for hub-direct socket-to-threaded 90-degree transitions in the 411 series — appearing wherever a 1" socket tee branch outlet, cross port, manifold hub, or valve body socket port must immediately serve a 1" male-threaded zone valve, solenoid valve inlet, pressure gauge connection, or instrument port at a compact right angle without an intermediate pipe section or separate threaded adapter at the hub face.

Rated to approximately 450 psi at 73°F (governed by the 1" spigot end), this elbow is suited for standard commercial and light industrial pressure service. Its dual ASTM construction — D2466 at the socket spigot end and D2464 at the FPT end — confirms compliance across both connection methods. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to the spigot exterior and the interior of the receiving socket hub per ASTM D2564 procedures, inserting fully and holding briefly for initial set. On the 1" FPT outlet, use a quality pipe thread sealant or PTFE tape on the male NPT threads of the mating downstream component before engagement; avoid over-torquing — PVC threads require hand-tight plus one to two turns. Plan the FPT outlet direction before cementing the spigot into the upstream hub — both the spigot insertion orientation in the hub and the resulting FPT outlet direction are fixed permanently once the cement cures. Allow adequate cure time on the cemented joint before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Transitions 1" socket-end tee branches, cross ports, side outlet elbow ports, and manifold fitting hubs directly to 1" male-threaded zone control valves, solenoid valve inlets, and filter housing connections at a compact 90-degree right angle in residential and light commercial irrigation systems where a simultaneous direction change and socket-to-thread transition at the fitting hub eliminates a separate adapter and reduces assembly footprint at the highest-demand valve station connection size in all-socket irrigation assemblies
• Commercial Plumbing — Provides a compact right-angle socket-to-thread transition at socket fitting hubs, tee branch outlets, and valve body socket ports in commercial building water distribution systems where a 1" male-threaded branch component must be connected at a 90-degree angle directly off a socket fitting port without an intermediate pipe section or separate thread adapter at the hub face
• Fire Suppression Systems — Transitions 1" socket tee branches and cross ports directly to male-threaded sprinkler head connections, branch drop fittings, and instrument ports at a compact 90-degree angle in light-hazard Schedule 40 PVC fire suppression systems where the socket-to-threaded head connection must originate immediately at the fitting hub with minimum projection in tight ceiling and wall installations
• Industrial Process Piping — Transitions 1" socket fitting hub ports to male-threaded instrument connections, valve bodies, flow meters, and equipment inlets at a compact 90-degree angle in water treatment, chemical processing, and manufacturing facilities where the simultaneous direction change and socket-to-thread transition reduces fitting count at constrained 1" socket-to-threaded connection points throughout the distribution assembly
• Water Treatment & Aquaculture — Used at pump connection tee branch outlets, filter housing socket ports, and treatment equipment socket-end connections where a compact 90-degree turn simultaneously transitions from the socket assembly to a 1" male-threaded instrument, valve, or equipment component with NSF/ANSI 61 compliance required throughout
• HVAC & Mechanical Systems — Produces compact 90-degree socket-to-thread transitions directly off socket fitting hubs on cooling tower supply tee branches, chilled water distribution manifold ports, and chemically treated water system equipment connections within the Schedule 40 pressure class where male-threaded service components must be served at right angles off socket fitting ports