3/4 inch CPVC Adapter Plastic x Male

3/4 Inch CPVC Adapter – Socket x Male NPT, Hot and Cold Water Rated

The 3/4 inch CPVC adapter (socket x male NPT) is used to transition from chlorinated polyvinyl chloride (CPVC) piping to a male-threaded metal or plastic fitting. This adapter is commonly specified in potable water distribution systems for both residential and commercial construction. It is suitable for hot and cold water service, with temperature and pressure ratings that align with standard CPVC piping system specifications.

Material Standards and Compliance

This fitting is manufactured from CPVC compound conforming to ASTM D1784 (cell classification 23447 or 24448) and complies with ASTM D2846 for hot and cold potable water distribution. It meets the dimensional requirements for SDR-11 CPVC socket fittings and includes a tapered male NPT thread per ASME B1.20.1. The material offers superior resistance to scaling, corrosion, and degradation from chlorinated water.

• ✅ Material: CPVC (chlorinated polyvinyl chloride)
• ✅ Size: 3/4 inch nominal
• ✅ Connection Type: Socket x Male NPT
• ✅ Certifications: NSF/ANSI 61 and 14, UPC, CSA B137.6

Temperature and Pressure Ratings

This CPVC adapter is rated for continuous service at 100 psi at 180°F and 400 psi at 73°F when installed in accordance with ASTM D2846. It is intended for use in non-metallic piping systems and is not suitable for use with compressed air or gas service.

Installation Guidelines

Solvent cement welding should be performed using CPVC-specific primer and cement compliant with ASTM F493. Ensure that socket joints are clean, fully inserted, and uniformly coated for proper bonding. For the threaded end, use only compatible thread sealants (non-petroleum-based) to avoid damaging the plastic threads. Overtightening can cause stress cracking or thread failure; tighten to hand-tight plus 1–2 additional turns.

Applications

This fitting is used in domestic water supply systems, branch connections to water heaters, risers, and fixture stub-outs. Its CPVC construction allows for installation in hot water lines, recirculating loops, and other applications requiring thermal stability and corrosion resistance.

Code Compliance Note

CPVC fittings are accepted under IPC, UPC, and state-level plumbing codes when used in approved potable water applications. The use of lead-free and certified components supports compliance with the Safe Drinking Water Act and NSF/ANSI 61 standards.