Nicholson Unions 100SUAWU Spiral Wound Pipe Union 1 Inch

Product Description

The NICHOLSON UNIONS 100SUAWU is a 1-inch spiral wound pipe union designed to provide a reliable, leak-resistant connection in piping systems. Unlike traditional ground joint unions, this fitting uses a spiral wound gasket that maintains a tight seal across repeated assembly and disassembly cycles. It is suited for use in plumbing, HVAC, and industrial piping applications where frequent service access is required. Licensed plumbers and pipefitters install this union where a serviceable, re-engageable pipe joint is needed without compromising seal integrity over time.

This union is well matched to maintenance-intensive systems where ground joint unions have historically caused recurring leakage issues. The spiral wound gasket design reduces the need for frequent retightening or gasket replacement, making it a practical choice in both commercial and light industrial environments. It fits into standard 1-inch piping configurations and is appropriate wherever a union fitting is required for periodic disassembly and reassembly of a piping run.

Key Features

• Spiral wound gasket construction addresses the leakage and maintenance limitations of ground joint pipe unions
• 1-inch pipe size suits a wide range of plumbing and HVAC piping configurations
• Designed for repeated assembly and disassembly without degrading the seal
• Reduces ongoing maintenance demands compared to conventional union fittings

Compatibility

Designed as an OEM-style replacement or direct upgrade for standard 1-inch ground joint pipe unions in residential and commercial piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and IPC requirements. Shut off and depressurize the piping system completely before removing or installing any union fitting. Use appropriate pipe wrenches and follow standard torque practices for the pipe material and fitting size. Do not overtighten the union nut, as this can distort the gasket and reduce sealing performance.