Bushing, Spigot x Slip (Flush Style) PVC Schedule 80 1-1/2" x 3/4" (837-210)

This 1-1/2" × 3/4" Schedule 80 PVC Flush Bushing provides a compact, all-solvent-cement size reduction from a 1-1/2" slip socket position down to a 3/4" PVC pipe run in a fully solvent-welded Schedule 80 system. The 1-1/2" spigot end inserts into any standard 1-1/2" female slip socket fitting or coupling for solvent cement joining on the upstream side, while the 3/4" slip socket on the outlet end accepts standard 3/4" PVC pipe for solvent cement joining on the downstream side. Both connections are permanent, chemically fused solvent-cemented joints — no threaded interface is introduced at either end of the fitting.

Understanding where the 837-series bushing fits among the three Schedule 80 flush bushing series available at the 1-1/2" inlet size is essential for correct product selection. All three share the same 1-1/2" spigot inlet end, inserting into a 1-1/2" slip socket in the upstream piping — but the outlet configurations serve three fundamentally different downstream requirements. The 839-series MPT × FPT bushing is an all-threaded fitting with no cement ends, threading into a female-threaded port upstream and presenting a female-threaded outlet downstream. The 838-series Spigot × FPT bushing cements into a slip socket upstream but presents a female-threaded outlet downstream for connecting a male-threaded component. The 837-010 cements into a slip socket upstream and presents a slip socket outlet downstream for cementing directly to 3/4" PVC pipe — keeping the entire assembly within the solvent-welded system without introducing any threaded interface at the bushing position.

This all-cement configuration is the correct selection when the size reduction from 1-1/2" to 3/4" occurs within a fully solvent-welded system — when the downstream run is 3/4" PVC pipe being cemented into the system rather than a threaded valve, fitting, or equipment connection. Wherever the piping layout requires stepping down from a 1-1/2" socket position to a 3/4" pipe run in a Schedule 80 PVC system, the 837-210 accomplishes that transition at the socket face in a single compact fitting without adding a separate reducing coupling, tee-plus-reducing-bushing assembly, or threaded adapter into the line.

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 1-1/2" slip socket without adding axial bulk at the transition point. The spigot end sits flush within the socket body, and the 3/4" outlet socket presents cleanly at the downstream side — maintaining a compact, unobstructed fitting profile that is particularly valuable in congested piping layouts where fitting clearance is limited at the size reduction point.

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 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. Two separate solvent-cemented joints must be made at installation — the spigot end and the outlet slip socket — and each requires the same preparation and cementation procedure. For both joints, clean and dry all mating surfaces before application. Apply purple PVC primer to the spigot exterior and receiving socket interior for the upstream joint; apply primer to the 3/4" pipe end and the bushing's outlet socket interior for the downstream joint. Apply a uniform coat of Schedule 80 PVC solvent cement to both mating surfaces at each joint before inserting. Hold each joint with a slight quarter-turn twist for 30 seconds and allow full cure time per the cement manufacturer's temperature and humidity guidelines before pressurizing. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Industrial Process Piping — Reduces a 1-1/2" slip socket position on a process header, tee branch, cross outlet, or coupling directly to a 3/4" solvent-welded pipe run in a fully solvent-welded Schedule 80 PVC system — the correct bushing wherever the size reduction occurs within the cemented piping and no threaded interface is required at the transition point; eliminates the need for a separate full-size socket fitting plus a downstream reducing coupling in chemical processing, water treatment, and manufacturing facility piping
• Commercial Plumbing — Steps down a 1-1/2" slip socket position on a tee, manifold, or coupling to a 3/4" PVC branch run in solvent-welded Schedule 80 building water distribution, mechanical room, and utility system piping where both the upstream socket and downstream pipe run are cement-joined components within a fully solvent-welded system
• Water & Wastewater Treatment — Provides an all-cement size transition from a 1-1/2" socket position to a 3/4" pipe run on process headers, chemical dosing distribution assemblies, filter vessel branch connections, and secondary distribution piping in municipal and industrial water treatment facilities where the fully solvent-welded construction is maintained through the size reduction without threading into the system
• Chemical Handling — Delivers a corrosion-resistant, all-cement size reduction from a 1-1/2" socket position to a 3/4" cemented pipe run on chemical feed headers, reagent distribution assemblies, and tank recirculation loops in systems handling acids, caustics, and aggressive process fluids where the fully solvent-welded construction eliminates threaded interfaces that could be vulnerable to chemical attack or leakage at the size transition
• Irrigation & Agricultural Systems — Reduces a 1-1/2" socket position on a tee or coupling to a 3/4" PVC pipe lateral or branch run in solvent-welded Schedule 80 PVC commercial irrigation mains, greenhouse distribution systems, and agricultural water supply headers where the size transition is accomplished within the cemented system and the downstream 3/4" run cements directly into the bushing outlet socket
• HVAC & Mechanical Systems — Installed at size reduction points on Schedule 80 PVC cooling tower makeup lines, treated water distribution assemblies, glycol system branches, and chilled water drain piping where a 1-1/2" socket position must transition to a 3/4" cemented pipe run within a fully solvent-welded mechanical system layout requiring Schedule 80 pressure performance through the size reduction fitting