Bushing, Spigot x FPT (Flush Style) PVC Schedule 80 1-1/2" x 3/4" (838-210)

This 1-1/2" × 3/4" Schedule 80 PVC Flush Bushing provides a compact, solvent-cement-to-thread transition in a single low-profile fitting, reducing a 1-1/2" slip socket port down to a 3/4" female NPT threaded outlet. 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 3/4" FPT end receives a compatible male-threaded fitting, valve, nipple, or instrument connection on the reduced side.

The spigot-end configuration is the critical distinction between this fitting and a threaded flush bushing. Rather than threading into a female-threaded port, the 838 spigot end solvent cements into a slip socket — making it the correct choice wherever the receiving fitting has a slip socket inlet rather than a threaded port. This allows a threaded outlet to be introduced at any slip socket position in the system without adding a separate adapter fitting downstream.

The flush style eliminates the protruding hex shoulder found on standard hex bushings, producing a streamlined, low-profile assembly that sits cleanly inside the receiving socket without adding axial bulk to the connection. This is particularly valuable in tight mechanical assemblies where a hex shoulder would create interference with adjacent components or reduce clearance for wrench access.

Manufactured in dark gray Schedule 80 PVC, this bushing delivers the increased wall thickness and mechanical strength demanded in industrial, chemical, and commercial pressure piping where Schedule 40 ratings are insufficient. PVC's resistance to acids, bases, salts, chlorine, and most common process fluids ensures 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 3/4" FPT end. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Industrial Process Piping — Introduces a 3/4" threaded outlet at a 1-1/2" slip socket position on process headers, pump manifolds, and equipment connections in chemical processing, water treatment, and manufacturing systems where a threaded tap is needed without disrupting the slip-socket piping layout
• Commercial Plumbing — Reduces a 1-1/2" slip socket port on a tee, cross, or coupling to a 3/4" threaded branch outlet at valve connections, gauge ports, drain taps, and fixture supply transitions in mechanical room and building water distribution piping
• Water & Wastewater Treatment — Provides a solvent-cement-to-thread transition at chemical dosing injection points, sampling ports, and instrumentation connections along Schedule 80 PVC process headers in municipal and industrial treatment facilities
• Chemical Handling — Delivers a corrosion-resistant spigot-to-thread size reduction at tank outlets, reagent distribution headers, and chemical feed lines where the system layout uses slip socket fittings but a downstream component requires a threaded connection
• Irrigation & Agricultural Systems — Used at control valve branches, filter drain ports, and fertigation injection points where a 1-1/2" slip socket position must transition to a 3/4" threaded valve or fitting in commercial irrigation and greenhouse piping systems
• HVAC & Mechanical Systems — Installed in PVC-piped cooling tower makeup lines, treated water distribution headers, and condensate systems where a Schedule 80 pressure rating and a compact spigot-to-thread transition are required within a slip-socket piping network