Midland Industries SS5405-20-20 Pipe Expander 316 Ss

Product Description

The MIDLAND INDUSTRIES SS5405-20-20 is a stainless steel pipe expander fitting designed for high-pressure and high-temperature fluid and gas systems. It connects a 1-1/4 inch Male NPTF thread to a 1-1/4 inch Female NPTF thread, providing a secure, leak-resistant seal in demanding piping applications. Manufactured from 316 stainless steel, this fitting handles maximum operating pressures up to 6000 psig and temperatures up to 1000 degrees F. The overall length is 2.48 inches. Licensed plumbers and pipefitters install this type of adapter in industrial, commercial, and process piping systems where corrosion resistance and pressure integrity are critical.

This fitting is suited for use in industrial process lines, chemical handling systems, high-pressure hydraulic or pneumatic assemblies, and commercial plumbing applications requiring stainless steel construction. The NPTF thread form provides a dry-seal connection that resists leakage without relying solely on thread sealants. Its 316 stainless steel composition makes it well suited for corrosive environments including saltwater, chemical exposure, and high-heat service. It is part of the SS5405 Series, which covers Male NPT to Female NPT expander configurations.

Key Features

• 316 stainless steel construction for corrosion resistance in harsh and chemical environments
• Maximum operating pressure of 6000 psig for high-pressure system use
• Rated to 1000 degrees F for high-temperature service
• NPTF dry-seal thread form on both connections reduces leak paths
• 1-1/4 inch Male NPTF x 1-1/4 inch Female NPTF configuration
• Compact at 2.48 inches in length for tight installation spaces

Compatibility

Part of the MIDLAND INDUSTRIES SS5405 Series of Male NPT to Female NPT stainless steel expander adapters. Designed for 1-1/4 inch NPTF threaded pipe connections in high-pressure and high-temperature piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or ASME B31 piping standards. Shut down and depressurize the system completely before removing or installing any fitting. NPTF threads are designed for dry-seal assembly, but a compatible thread sealant or PTFE tape may be used per system requirements. Do not overtighten, as stainless steel threads are susceptible to galling.