Reducer Coupling, Slip x Slip PVC Schedule 80 3/4" x 1/2" (829-101)

This 3/4" x 1/2" Schedule 80 PVC Reducer Coupling (Slip x Slip) provides an inline, solvent-cement transition between two different pipe diameters in Schedule 80 PVC pressure piping systems. Constructed in dark gray Schedule 80 PVC, it delivers the elevated wall thickness and pressure capacity required in industrial, chemical, and commercial plumbing installations where standard Schedule 40 fittings are insufficient and where a compact, corrosion-resistant inline reducer is needed without additional transition hardware.

The 3/4" slip socket on the larger end and the 1/2" slip socket on the smaller end each accept their respective PVC pipe sizes for permanent solvent-cement bonds, creating a straight-line reducing transition that keeps the assembly compact and eliminates the need for a full-size coupling plus a separate bushing in the same location. This inline configuration is the preferred approach when stepping down pipe diameter along a straight run, offering a lower profile and fewer potential leak points than a bushing-in-coupling assembly. Both sockets are sized to accept standard Schedule 40 or Schedule 80 pipe of the corresponding diameter.

Its PVC composition provides excellent resistance to acids, bases, salts, and chlorinated water, making it a durable long-term choice in corrosive environments where metal reducers would degrade. NSF/ANSI 61 listing confirms suitability for potable water contact, including use in drinking water distribution and treatment systems.

Apply solvent cement to both the pipe end and fitting socket on each side 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 across the joint surface. Allow adequate cure time before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Industrial Process Piping — Steps down pipe diameter along straight runs at pump outlets, equipment connections, and distribution headers in chemical processing, water treatment, and manufacturing facilities where Schedule 80 pressure ratings are specified
• Commercial Plumbing — Reduces 3/4" supply mains to 1/2" branch lines at fixture supply points, valve assemblies, and panel connections in high-pressure or exposed pressurized water systems
• Irrigation & Water Distribution — Transitions 3/4" mainline PVC runs to 1/2" lateral supply lines at zone headers, drip feed points, and solenoid valve inlets in agricultural and municipal irrigation systems
• Chemical Handling — Provides a corrosion-resistant, inline diameter reduction in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, particularly where a low-profile one-piece reducer is preferred over a bushing-in-coupling assembly
• Water Treatment & Aquaculture — Used at pump outlet transitions, filter feed lines, and recirculating system distribution headers where NSF/ANSI 61 compliance and Schedule 80 chemical resistance are required
• HVAC & Mechanical Systems — Reduces pipe diameter along straight runs on cooling tower headers, chilled water loops, and chemically treated water systems requiring Schedule 80 pressure ratings at 3/4"-to-1/2" transitions