Midland Industries 55129 Pvc Pipe Nipple 1-1/4in Sch 80

Product Description

The MIDLAND INDUSTRIES 55129 is a Schedule 80 PVC pipe nipple designed for threaded plumbing connections in systems where pressure rating and chemical resistance matter. It measures 6 inches in length and 1-1/4 inches in diameter, with male pipe thread (MPT) on both ends conforming to a 1-1/4-11-1/2 thread specification. The dark gray PVC construction meets ASTM F1498 dimensional standards and carries a pressure rating of 210 psi. Plumbers and pipefitters use this nipple where a heavier-wall thermoplastic fitting is required over standard Schedule 40 applications.

This nipple is suited for residential and light commercial plumbing installations, as well as industrial fluid-handling systems where PVC is an appropriate material choice. Its Schedule 80 wall thickness makes it a preferred option in chemical-handling lines, irrigation headers, and water treatment piping where the added wall strength provides a margin of safety beyond Schedule 40. The 1-1/4 in MPT x MPT configuration allows direct thread-to-thread installation between two female-threaded fittings, valves, or equipment ports.

Key Features

• Schedule 80 PVC construction rated to 210 psi
• 1-1/4 in MPT on both ends with 1-1/4-11-1/2 thread form
• 6 inch overall length for standard close-coupled connections
• Dark gray color standard for SCH 80 PVC identification
• ASTM F1498 dimensional compliance
• Lightweight at 0.275 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Schedule 80 PVC threaded piping systems using 1-1/4 in female-threaded (FPT) fittings, valves, and equipment connections.

Installation Notes

A licensed plumber should install this fitting in accordance with applicable plumbing codes, including IPC requirements for thermoplastic piping systems. Shut off the water supply and depressurize the line before making or breaking any threaded connections. Use PTFE thread tape or a compatible thread sealant rated for PVC on all male threads; do not overtighten, as PVC threads can crack under excessive torque. Avoid contact with solvents, oils, or materials incompatible with PVC.