1/2 inch CPVC Union Plastic x Female

1/2 Inch CPVC Union – Socket x Female NPT

The 1/2 inch CPVC Union (Socket x Female NPT) is a transition fitting used to connect CPVC piping systems to threaded components while allowing for system disassembly. Designed for hot and cold potable water systems, this union enables a serviceable joint in applications where future access or maintenance may be required.

Material Specifications and Standards

Manufactured from chlorinated polyvinyl chloride (CPVC) conforming to ASTM D1784 Cell Classification 23447, this union offers excellent corrosion resistance and thermal stability. The female threaded end meets ANSI B1.20.1 standards, and the socket end is solvent-weld compatible with SDR-11 CPVC pipe.

• ✅ Material: CPVC (Type IV, Grade I)
• ✅ Size: 1/2 inch nominal
• ✅ Connection: Socket (solvent weld) x 1/2 inch Female NPT
• ✅ Certifications: NSF/ANSI 61, NSF 14, and lead-free compliant (NSF/ANSI 372)

Installation Guidelines

Solvent welding is required for the CPVC socket end; primer and CPVC cement must be applied per the pipe manufacturer’s recommendations. For the threaded end, apply PTFE tape or compatible sealant. Tighten by hand and follow with a wrench, taking care not to over-torque and crack the fitting.

• ✅ Sealants: Use only CPVC-compatible solvent cement and PTFE tape or sealant for threaded end
• ✅ Temperature Rating: 33°F to 200°F (based on pressure and system type)
• ✅ Pressure Rating: Up to 100 PSI at 180°F (per applicable standards)

Common Applications

Used in hot and cold water distribution systems, equipment hook-ups, and serviceable pipe connections in both residential and commercial environments. The union design allows for component removal or pipe replacement without cutting into the system.

Performance Features

• ✅ Serviceability: Enables future access to valves, equipment, or branch lines
• ✅ Corrosion Resistant: Will not degrade in chlorinated water or typical domestic water systems
• ✅ Non-Metallic: Electrically non-conductive and immune to galvanic corrosion

The 1/2 inch CPVC Union (Socket x Female Thread) is an effective solution for systems requiring a removable connection between solvent-welded CPVC pipe and threaded fittings. Its material compatibility, temperature tolerance, and dimensional stability make it suitable for use in pressure-rated potable water and hydronic systems where long-term reliability is critical.