Nibco CD00550 Pvdf Adapter Coupling 3/4 in Sch 80 Fpt

Product Description

The NIBCO CD00550 is a Schedule 80 PVDF adapter coupling designed for 3/4-inch pipe connections using female pipe thread (FPT) on both ends. PVDF (polyvinylidene fluoride) is a high-purity thermoplastic rated for demanding chemical and high-temperature environments, making this fitting a reliable choice where standard PVC or CPVC are not appropriate. The red coloring aids in visual identification of PVDF fittings in a system. Rated to a maximum working temperature of 280 degrees F, this coupling is suited for hot fluid transfer, aggressive chemical lines, and corrosive process piping. Licensed plumbers and industrial pipefitters are the typical installers for Schedule 80 PVDF systems.

This adapter coupling is used in residential, commercial, and industrial plumbing and process piping applications where chemical resistance and elevated temperature performance are required. Common installations include chemical transfer lines, high-purity water systems, and industrial process piping. The FPT x FPT end connections allow threaded pipe or fittings to be joined at both ends, making it a practical transition or in-line connection point within a PVDF piping system.

Key Features

• PVDF construction provides excellent chemical resistance and high-temperature performance
• Schedule 80 wall thickness for higher pressure ratings compared to Schedule 40
• FPT x FPT end connections accept male-threaded pipe or fittings on both ends
• Maximum working temperature of 280 degrees F
• Red color coding for quick identification of PVDF components in the field
• Meets ASTM D3222 standard for PVDF plastic fittings

Compatibility

Designed for use in Schedule 80 PVDF piping systems with 3/4-inch female pipe thread connections, conforming to ASTM D3222 specifications for PVDF plastic fittings and pipe.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter familiar with thermoplastic piping systems. Shut off and depressurize the line before beginning any fitting work. PVDF threaded fittings should be assembled with PTFE tape or a compatible thread sealant rated for PVDF and the intended process fluid. Avoid over-torquing threaded connections, as excessive force can crack thermoplastic fittings.