Spears Schedule 40 PVC Union, Socket Connection, Buna-N O-Ring

Spears Schedule 40 PVC Union, Socket Connection, Buna-N O-Ring

The Spears PVC Union is a Schedule 40 socket (SOC) pattern union with a Buna-N O-ring seal, built to give plumbers and pipefitters a reliable disconnect point in PVC pressure piping runs. This union is available in 1/2", 3/4", and 1" nominal pipe sizes, so contractors can standardize the same serviceable fitting across common branch and main-line runs. Unions like this one allow a section of pipe, a valve, or an in-line fitting to be removed for service or replacement without having to cut and re-glue the surrounding pipe, which is a major time saver on rough-in and retrofit work alike. Constructed in PVC and rated for Schedule 40 service, this union solvent-welds into standard PVC pipe on both ends and seals at the center nut with the Buna-N O-ring, giving a dependable, serviceable joint in water and compressed-air lines where PVC is the specified material. This is a trade rough-in component intended for behind-the-wall, under-slab, or exposed mechanical-room installation by a licensed plumber or contractor, not a decorative or exposed fixture.

Key Features

• Trade Size Range: Available in 1/2", 3/4", and 1" nominal pipe sizes for standard Schedule 40 PVC pipe runs.
• Durable Construction: Molded PVC body provides corrosion resistance suitable for PVC pressure-piping systems.
• Socket (SOC) Connection: Solvent-weld socket ends on both sides of the union for a permanent, leak-tight bond to PVC pipe.
• Schedule 40 Rated: Matches standard Schedule 40 PVC pipe wall thickness for compatible fit-up in common pressure piping systems.
• Buna-N O-Ring Seal: Center-nut O-ring seal provides a serviceable, reusable disconnect point for maintenance access without cutting pipe.
• Three-Piece Union Design: Allows the joint to be broken and reassembled repeatedly for valve, fitting, or equipment servicing.

Technical Specifications

• Trade Size Range: 1/2" - 1"
• Material: PVC
• Connection Type: Socket (SOC)
• Seal Material: Buna-N O-ring
• Schedule: Schedule 40

Typical Applications

• Residential and Commercial Rough-In PVC Piping
• Valve and Equipment Service Disconnect Points
• PVC Pressure Piping Repair and Maintenance
• New Construction and Retrofit Plumbing Installations
• Mechanical Room and Under-Slab PVC Runs

Why Spears?

Spears is a recognized manufacturer of PVC and thermoplastic piping products for plumbing and industrial piping systems, and this union line reflects that focus with a Schedule 40 PVC body, solvent-weld socket ends, and a Buna-N O-ring seal built for repeated serviceability across the 1/2", 3/4", and 1" size range. For contractors standardizing on PVC pressure piping, a dedicated union fitting like this one simplifies future maintenance by eliminating the need to cut pipe for every valve or fitting replacement. Stock the Spears PVC union alongside your other Schedule 40 PVC fittings for a consistent, compatible rough-in piping system across every trade size you run.