Elbow, Reducing 90 Degree, Slip x Slip PVC Schedule 40 3/4" x 1/2" (406-101)

This 3/4" x 1/2" Schedule 40 PVC 90 Degree Reducing Elbow (Slip x Slip) combines a right-angle direction change and the most common adjacent-size step-down in residential and light commercial PVC systems into a single compact all-socket fitting body — accepting a 3/4" PVC pipe at the inlet socket for a permanent solvent-cement bond and providing a 1/2" slip socket at the outlet for a permanent solvent-cement bond on the reduced-diameter downstream pipe run departing at 90 degrees. Constructed in white Schedule 40 PVC, it eliminates both the intermediate reducer bushing or coupling and the additional joints that a standard full-size 3/4" elbow plus a separate 3/4" x 1/2" size-reduction fitting would require at the same assembly location — the most widely encountered turn-and-reduce application in residential landscape irrigation grid and drip system distribution assemblies.

The 3/4" slip socket inlet accepts 3/4" PVC pipe for a permanent solvent-cement bond, anchoring the fitting to the upstream 3/4" socket distribution assembly at the direction change point. The 1/2" slip socket outlet accepts 1/2" PVC pipe for a permanent solvent-cement bond on the downstream pipe run, simultaneously stepping the assembly diameter down from 3/4" to 1/2" and redirecting the pipe run 90 degrees from the inlet axis — delivering both the direction change and the size transition in a single fitting. This is the smallest confirmed inlet size in the 406 series reducing sub-series and the most widely specified turn-and-reduce configuration in residential PVC systems — appearing throughout landscape irrigation lateral assemblies where a 3/4" grid header or sub-main must simultaneously change direction and supply a 1/2" drip emitter supply stub or lateral; in fire suppression branch assemblies where a 3/4" socket run must simultaneously turn and step down to a 1/2" drop; and in compact plumbing distribution assemblies where a 3/4" socket main must simultaneously turn and reduce to a 1/2" dedicated fixture or equipment supply run at the same fitting location. The two other confirmed 406 series entries with a 1/2" slip outlet — 406-101 (3/4" inlet, this entry) and 406-130 (1" inlet, confirmed in this catalog session) — together cover the two highest-demand run inlet sizes for a 1/2" outlet 90-degree reducing elbow in residential and commercial PVC assemblies; the correct choice between them is determined solely by the upstream pipe diameter. This configuration should not be confused with the full-size 3/4" Slip x Slip 90 Degree Elbow (406 series, 3/4" full-size if stocked), which maintains a 3/4" socket outlet without size reduction, or with the standard 3/4" x 1/2" spigot bushing or reducer coupling, which reduces inline without a direction change.

Rated to approximately 480 psi at 73°F (governed by the 3/4" slip inlet), this elbow is suited for standard commercial and light industrial pressure service. Its PVC composition provides excellent resistance to corrosion, scale, chlorinated water, and a broad range of chemical exposures. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket at each port per ASTM D2564 procedures, using a primer appropriate for the pipe and fitting schedule. Insert pipe fully into each socket and maintain a quarter-turn during assembly for even cement distribution. Plan the outlet direction of the elbow before cementing the inlet joint — the downstream 1/2" pipe run alignment is established when the 3/4" inlet joint is cemented and cannot be adjusted after cure. Allow adequate cure time before pressurizing, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Simultaneously changes direction and steps down from a 3/4" all-socket grid header, sub-main, or lateral distribution run to a 1/2" socket drip emitter supply stub, small-bore zone lateral, or service branch in residential and light commercial irrigation assemblies where both the 90-degree turn and the 3/4" to 1/2" size reduction must occur at the same fitting location — the most common all-socket turn-and-reduce configuration at the dominant 3/4" residential irrigation grid header diameter feeding 1/2" lateral supply runs
• Drip & Micro-Irrigation Systems — Provides the standard all-socket turn-and-reduce junction point where a 3/4" socket distribution header must simultaneously change direction and supply a 1/2" socket drip emitter lateral, micro-irrigation sub-header, or dedicated small-bore zone run at a corner or routing transition point throughout residential and light commercial drip system grid assemblies
• Fire Suppression Systems — Simultaneously redirects and reduces 3/4" socket branch lines to 1/2" socket sprinkler head drops and lateral branch connections in light-hazard and residential Schedule 40 PVC fire suppression grid assemblies where the 90-degree turn and the one-step size reduction to the 1/2" sprinkler supply must occur at the same compact fitting location throughout the all-cemented grid
• Commercial Plumbing — Provides a compact 1/2" socket dedicated service branch tap off a 3/4" socket distribution main with simultaneous 90-degree direction change at fixture supply, equipment feed, and small-bore service connection corners in commercial building water distribution systems where a single fitting replaces a full-size 3/4" elbow plus a separate 3/4" x 1/2" reducer bushing in sequence at the same turn-and-reduce location
• Industrial Process Piping — Simultaneously changes direction and reduces 3/4" socket process water distribution runs to 1/2" socket instrument supply lines, small-bore service branches, and sample line stubs at turn-and-reduce points in water treatment, chemical processing, and manufacturing facilities where fitting count at all-socket routing transitions is a design priority
• Water Treatment & Aquaculture — Used at 90-degree turn-and-reduce points in 3/4" all-socket distribution assemblies where the downstream 1/2" socket run must simultaneously change direction and step down from the 3/4" distribution diameter with NSF/ANSI 61 compliance required throughout the all-cemented assembly