Coupling, Slip x Slip PVC Schedule 80 1/2" (829-005)

This 1/2" Schedule 80 PVC Slip Coupling (Slip x Slip) provides a direct inline connection between two 1/2" PVC pipe ends via permanent solvent-cement bonds in Schedule 80 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 reliable, corrosion-resistant inline socket joint is needed at small-diameter service connections throughout an all-Schedule-80 assembly.

Both slip socket ends are sized to accept 1/2" PVC pipe for permanent solvent-cement bonds, joining two pipe ends inline to extend a run, complete a joint after a cut or repair, or bridge two cemented system sections at an inline junction without introducing threaded interfaces into an all-socket assembly. The Slip x Slip coupling is the standard solvent-cement approach to inline pipe joining and should not be confused with the FPT x FPT threaded coupling (830 series), which joins two male NPT-threaded pipe ends without solvent cement and is the correct choice for all-threaded PVC assemblies. At 1/2", this coupling is among the most frequently specified sizes in Schedule 80 socket systems, appearing throughout chemical feed distribution lines, instrument manifold pipe runs, pump discharge assemblies, and small-diameter process piping installations where the elevated pressure rating and wall thickness of Schedule 80 are required at every joint in the system.

Rated to approximately 850 psi at 73°F, this coupling is well-suited for demanding pressure service across a broad range of industrial, chemical, and commercial fluid handling applications. 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 couplings would degrade or add unnecessary weight and cost to the assembly. 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 exterior and the fitting socket interior 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. If joining two fixed pipe ends where future disassembly may be required, consider whether a union fitting is a more appropriate solution — a fully cemented coupling joint is not removable without cutting. 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 — Joins two 1/2" Schedule 80 PVC pipe ends inline to extend distribution runs, complete cemented joints after field cuts, and bridge pipe sections at inline junction points in chemical processing, water treatment, and manufacturing facilities where all-socket Schedule 80 construction is specified throughout small-diameter process and instrument piping assemblies
• Chemical Handling — Provides a corrosion-resistant, high-pressure-rated inline socket joint in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, particularly in all-socket Schedule 80 chemical feed distribution lines, injection manifold pipe runs, and metering system assemblies at 1/2" line sizes
• Commercial Plumbing — Extends or repairs 1/2" Schedule 80 PVC pipe runs at inline joint locations in high-pressure or exposed commercial building water supply systems where all-socket construction is specified or preferred and solvent-cement joints are required throughout the assembly
• Irrigation & Water Distribution — Joins 1/2" Schedule 80 pipe ends inline at distribution header extensions, valve station pipe runs, and instrument manifold connections in high-pressure agricultural and municipal irrigation systems where Schedule 80 socket construction is specified at critical small-diameter service and branch supply points
• Water Treatment & Aquaculture — Used in Schedule 80 chemical dosing distribution runs, instrument manifold pipe sections, recirculating system branch extensions, and filter feed lateral repairs where NSF/ANSI 61 compliance and Schedule 80 pressure capacity are required at 1/2" inline pipe joints throughout the all-socket assembly
• HVAC & Mechanical Systems — Joins 1/2" Schedule 80 PVC pipe ends inline on cooling tower chemical feed distribution lines, chilled water instrument manifold pipe runs, and chemically treated water system service assemblies requiring elevated pressure ratings at small-diameter inline socket joints throughout the installation