Reducer Bushing, Spigot x Slip PVC Schedule 40 1-1/2" x 1-1/4" (437-212)

This 1-1/2" x 1-1/4" Schedule 40 PVC Reducer Bushing (Spigot x Slip) provides a compact, all solvent-cement near-full-size reduction from a 1-1/2" socket fitting hub down to a continuing 1-1/4" socket pipe run — consolidating a very modest 1.2:1 step-down and the hub-to-pipe transition into a single all-socket fitting body driven almost entirely by downstream pipe run compatibility rather than any hydraulic flow management requirement. Constructed in white Schedule 40 PVC, it is the largest confirmed outlet in the 1-1/2" spigot inlet 437 series sub-series — appropriate wherever a 1-1/2" socket assembly must supply a continuing 1-1/4" socket distribution run, sub-main, or service line at a fitting hub location without any threaded interface in the all-socket transition.

The 1-1/2" spigot (male plain end) is sized to insert directly into the hub of any standard 1-1/2" socket-end fitting — tee branch outlet, cross port, coupling end, elbow outlet, or valve body — and is solvent-cemented in place to form a permanent, leak-free joint at the outer face of the hub. The 1-1/4" slip socket outlet accepts 1-1/4" PVC pipe for a permanent solvent-cement bond on the downstream reduced-diameter pipe run, completing the all-socket near-full-size transition in a single compact cemented fitting body. This Spigot x Slip all-socket configuration is the correct choice when both the upstream 1-1/2" assembly and the downstream 1-1/4" pipe continuation are all-socket cemented PVC construction and no threaded interface is required or desired at the hub reduction point — distinct from the 438-212 (1-1/2" x 1-1/4" Spigot x FPT, if stocked), which cements into the same 1-1/2" socket hub but provides a 1-1/4" female-threaded outlet for a male-threaded downstream component rather than a socket pipe run, and from the 439-212 (1-1/2" x 1-1/4" MPT x FPT Hex Bushing, confirmed in this catalog session), which threads into a 1-1/2" female-threaded port rather than cementing into a socket hub. The 1-1/2" to 1-1/4" near-full-size step-down is most commonly encountered in secondary distribution header assemblies where a 1-1/2" socket main must supply a 1-1/4" socket sub-main or distribution run; in irrigation systems where a 1-1/2" socket header hub must feed a continuing 1-1/4" socket lateral distribution run; and at system design points where a one-step near-full-size reduction in the all-socket assembly is required at a fitting hub location without a reduction in downstream flow capacity.

Rated to approximately 330 psi at 73°F (governed by the 1-1/2" spigot end), this bushing is suited for standard commercial and light industrial water distribution and irrigation service within its pressure class. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to the spigot exterior and the interior of the receiving 1-1/2" socket hub per ASTM D2564 procedures, inserting fully and holding briefly for initial set. Apply solvent cement separately to the 1-1/4" pipe end exterior and the fitting's slip socket interior before inserting the pipe fully and maintaining a quarter-turn during assembly. Allow adequate cure time on both cemented joints before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Steps down 1-1/2" socket tee branch outlets, cross ports, manifold hubs, and valve body socket ports to a continuing 1-1/4" socket PVC sub-main, lateral distribution run, or secondary header in agricultural and municipal irrigation systems where a near-full-size one-step hub reduction to 1-1/4" supplies a continuing all-socket distribution run without a threaded transition or separate reducer coupling downstream of the fitting hub
• Commercial Plumbing — Transitions 1-1/2" socket fitting hub branch outlets and manifold ports to continuing 1-1/4" socket PVC distribution runs, branch supply mains, and service line headers in commercial building water distribution systems where all-socket construction is maintained throughout and the near-full-size 1-1/2" to 1-1/4" step-down preserves very high flow capacity in the downstream socket run
• Pump Station Assemblies — Provides a near-full-size all-socket hub reduction from 1-1/2" socket fitting ports to continuing 1-1/4" socket pump station distribution runs, discharge header branches, and bypass line supply runs in pump station installations where all-socket cemented construction is maintained at the hub reduction point throughout the assembly
• Industrial Process Piping — Steps down 1-1/2" socket fitting hub branch outlets and manifold ports to continuing 1-1/4" socket process water distribution runs, equipment feed headers, and service line assemblies in water treatment, chemical processing, and manufacturing facilities where near-full-size all-socket hub reductions maintain high flow capacity in the downstream 1-1/4" distribution run
• Water Treatment & Aquaculture — Used at 1-1/2" socket tee branches, cross ports, and manifold hub outlets where a continuing 1-1/4" socket distribution run, recirculating loop, or service header must originate directly at the fitting hub in all-socket cemented construction with NSF/ANSI 61 compliance required throughout the assembly
• HVAC & Mechanical Systems — Transitions 1-1/2" socket fitting hub ports to continuing 1-1/4" socket pipe runs on cooling tower supply headers, chilled water distribution branch assemblies, and chemically treated water system socket piping within the Schedule 40 pressure class where near-full-size all-socket hub reductions maintain distribution flow capacity at system branch and sub-main departure points