Midland Industries 55128 Pvc Pipe Nipple 1-1/4 in Sch 80

Product Description

The MIDLAND INDUSTRIES 55128 is a Schedule 80 PVC pipe nipple designed for threaded plumbing connections in corrosion-resistant piping systems. It features male pipe thread (MPT) on both ends at 1-1/4 inches with a 1-1/4-11-1/2 thread form, and measures 5.5 inches in length. The dark gray PVC construction conforms to ASTM F1498 dimensional standards and is rated for 210 psi working pressure, making it suitable for pressure service where standard Schedule 40 fittings are insufficient. Plumbers and pipefitters install this nipple as a close extension between threaded fittings, valves, or equipment connections in both new construction and repair applications.

This nipple is used in Schedule 80 PVC piping systems handling water, chemicals, or other fluids compatible with PVC. Typical applications include industrial process piping, irrigation systems, pool and spa plumbing, and commercial or residential cold-water supply lines where corrosion resistance and elevated pressure ratings are required. The 1-1/4-inch diameter is a common size in branch lines and equipment supply connections across light commercial and residential installations.

Key Features

• Schedule 80 PVC construction rated to 210 psi working pressure
• 1-1/4 in MPT on both ends with 1-1/4-11-1/2 thread form
• 5.5-inch length suits extension and spacing applications between fittings
• Dark gray PVC color provides visual identification as SCH 80 pipe
• Conforms to ASTM F1498 dimensional standards
• Corrosion-resistant material eliminates rust and scale concerns

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Schedule 80 PVC threaded piping systems using 1-1/4 in MPT connections.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter. Apply PVC-rated thread sealant tape or compound to male threads before assembly; do not use petroleum-based compounds on PVC fittings. Hand-tighten first, then use strap wrenches or smooth-jaw wrenches to avoid cracking the fitting - avoid pipe wrenches with teeth directly on PVC. Depressurize and drain the system completely before removing or replacing any threaded nipple.