Midland Industries 55108 Pvc Pipe Nipple 1 in Mpt Sch 80

Product Description

The MIDLAND INDUSTRIES 55108 is a Schedule 80 PVC pipe nipple designed for threaded plumbing connections in pressure-rated systems. It measures 5.5 inches in length with a 1-inch diameter and features male pipe thread (MPT) on both ends. Built from dark gray PVC to SCH 80 wall thickness, this nipple carries a pressure rating of 315 psi, making it suitable for applications that demand more wall strength than Schedule 40 fittings provide. Thread form conforms to ASTM F1498 standards. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit work.

This nipple is used in residential and light commercial plumbing systems where Schedule 80 PVC is specified for elevated pressure or additional mechanical protection. Common install scenarios include chemical feed lines, irrigation manifolds, pool and spa equipment plumbing, and industrial process piping where PVC is an approved material. The 1-inch MPT-by-MPT configuration threads directly into female-threaded fittings, valves, or equipment ports without adapters.

Key Features

• Schedule 80 PVC construction rated to 315 psi
• 1-inch MPT on both ends for straightforward threaded assembly
• 5.5-inch length fits standard nipple spacing in manifold and valve installations
• Dark gray color denotes SCH 80 grade, distinguishing it from Schedule 40 white PVC
• Thread form meets ASTM F1498 dimensional standards
• Lightweight at 0.07 pounds, reducing handling fatigue in high-volume installs

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Schedule 80 PVC threaded piping systems using 1-inch female-threaded (FPT) connections in plumbing, pool, spa, and light industrial applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off and depressurize the system completely before removing or installing any threaded fittings. Use PTFE tape or an approved thread sealant rated for PVC on all threaded joints. Do not over-torque PVC threads, as PVC is more brittle than metal pipe and can crack at the thread roots if excessive force is applied.