Bushing, Spigot x FPT (Flush Style) PVC Schedule 80 1-1/2" x 1" (838-211)

This 1-1/2" × 1" Schedule 80 PVC Flush Bushing provides a one-step solvent-cement-to-thread size transition, reducing a 1-1/2" slip socket port to a 1" female NPT threaded outlet in a single compact fitting. The 1-1/2" spigot end inserts directly into any standard 1-1/2" slip socket fitting or coupling for solvent cement joining, while the 1" FPT end receives any compatible 1" male-threaded fitting, valve, strainer, nipple, or equipment connection on the reduced side.

The one-step reduction from 1-1/2" to 1" makes this bushing particularly well suited for installations where the primary piping runs in 1-1/2" PVC and must interface with the broad range of valves, pumps, strainers, and instrumentation that are commonly manufactured in 1" threaded configurations. Rather than reducing through multiple fittings in series or inserting a separate adapter downstream of a full-size tee or coupling, the 838-211 accomplishes the slip-to-thread transition and size reduction in a single low-profile component.

As with all 838-series fittings, the spigot end is the defining feature distinguishing this fitting from the 839-series threaded flush bushings. Where the 839-series MPT end threads into a female port, the 838 spigot end solvent cements into a slip socket — making this the correct selection wherever the receiving fitting or coupling presents a slip socket inlet rather than a threaded port. This enables a 1" threaded outlet to be introduced at any 1-1/2" slip socket position without modifying the upstream piping layout or adding intermediate adapter fittings.

The flush style eliminates the protruding hex shoulder of a standard hex bushing, producing a streamlined, low-profile assembly that installs cleanly inside the receiving socket. In space-constrained mechanical assemblies — tight equipment rooms, wall chases, or closely spaced manifold runs — the absence of a hex shoulder preserves clearance and keeps the assembly compact.

Manufactured in dark gray Schedule 80 PVC, this bushing delivers the increased wall thickness and mechanical strength required in industrial, chemical, and commercial pressure piping where Schedule 40 ratings are insufficient. PVC's broad chemical resistance profile covers acids, bases, salts, chlorine, and most common process fluids, providing long service life in corrosive environments where metal bushings would degrade or contaminate the fluid stream. NSF/ANSI 61 listing confirms suitability for potable water contact.

Rated to 630 psi at 73°F (governed by the 1-1/2" spigot end), this fitting handles standard to elevated pressure service across a wide range of fluid handling applications. For the spigot end, clean and dry the spigot exterior and receiving socket interior, apply purple PVC primer to both mating surfaces, then apply a uniform coat of Schedule 80 PVC solvent cement to both surfaces before inserting. Hold firmly for 30 seconds and allow full cure time per the cement manufacturer's guidelines before pressurizing. Apply PTFE tape or compatible thread sealant to all male threads engaging the 1" FPT end. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Industrial Process Piping — Transitions a 1-1/2" slip socket position on a process header, pump manifold, or equipment nozzle to a 1" threaded valve, strainer, flow meter, or instrument connection in chemical processing, water treatment, and manufacturing facilities — a common size pairing given the prevalence of 1" threaded components in standard industrial equipment
• Commercial Plumbing — Reduces a 1-1/2" slip socket port on a tee, cross, or coupling to a 1" threaded outlet at shutoff valves, pressure gauge assemblies, backflow preventer ports, and fixture supply branches in mechanical room and building water distribution systems
• Water & Wastewater Treatment — Provides a compact solvent-cement-to-thread transition at pump discharge connections, filter vessel inlets, chemical dosing ports, and sampling taps along Schedule 80 PVC process headers in municipal and industrial water treatment facilities
• Chemical Handling — Delivers a one-step, corrosion-resistant spigot-to-thread size transition at tank outlets, recirculation loop connections, and reagent distribution headers where the primary system uses slip socket PVC and downstream equipment presents 1" threaded inlets
• Irrigation & Agricultural Systems — Interfaces a 1-1/2" slip socket mainline or sub-main position with 1" threaded control valves, filter housings, fertigation injectors, and pressure regulators in commercial irrigation headers, greenhouse systems, and agricultural water supply networks
• HVAC & Mechanical Systems — Installed in PVC cooling tower makeup lines, glycol system branches, treated water distribution headers, and condensate management piping where a Schedule 80 pressure rating and a compact one-step spigot-to-1"-thread transition are required within a slip-socket piping network