Nibco 435-050 Pvc Sch 40 Female Adapter 5 Inches

Product Description

The NIBCO 435-050 is a PVC Schedule 40 female adapter designed to transition between a plain-end pipe and a female NPT threaded connection. Built from white PVC, this fitting handles the socket end with a solvent-cement socket (spigot) on one side and a female NPT thread on the other. It is rated for Schedule 40 pressure systems and is sized at 5 inches, making it suited for larger-diameter runs in commercial and industrial piping applications. Plumbers and pipefitters install this adapter where a PVC plain-end pipe needs to connect to a threaded fitting, valve, or equipment port.

This adapter is used in residential and commercial plumbing systems, irrigation mains, industrial process piping, and municipal water distribution where PVC Schedule 40 pipe transitions to a threaded connection are required. The 5-inch size is common in high-flow or large-bore applications such as main supply lines, pump discharge connections, and manifold assemblies.

Key Features

• Socket x FNPT configuration allows solvent-cement pipe insertion on one end and female threaded connection on the other
• PVC Schedule 40 construction provides corrosion resistance and compatibility with common water and chemical service
• White color meets standard Schedule 40 PVC visual identification conventions
• 5-inch size accommodates large-bore piping systems and high-flow applications
• Female NPT thread accepts standard male-threaded valves, fittings, and equipment ports

Compatibility

Designed as an OEM-style replacement and standard fitting for Schedule 40 PVC piping systems using 5-inch nominal pipe diameter with socket and female NPT threaded connections.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and local plumbing code requirements. Depressurize and drain the system completely before cutting into an existing line. The socket end requires proper PVC primer and solvent cement applied per the cement manufacturer instructions and ASTM D2855 procedures. Allow full cure time before pressurizing the system.