Legend Valve 404-142 SS304 Union 3/8 Inch Fnpt

Product Description

The LEGEND VALVE 404-142 is a 3/8 inch 304 stainless steel union with female NPT (FNPT) connections on both ends. Unions allow piping systems to be disconnected and reconnected without cutting or threading existing pipe, making them a standard component in plumbing, HVAC, and light industrial installations. The 304 stainless steel construction provides solid corrosion resistance in water, mild chemical, and general-purpose service environments. Licensed plumbers and pipefitters typically install this fitting in applications where periodic disassembly is required for service or equipment removal.

This union is suited for residential and light commercial plumbing, hydronic heating, and process piping systems where a 3/8 inch FNPT threaded connection is required. The FNPT threading conforms to standard NPT taper, allowing connection to standard male NPT fittings. Its stainless steel body makes it appropriate for installations where carbon steel or brass fittings are unsuitable due to corrosion exposure or material compatibility requirements.

Key Features

• 304 stainless steel body for corrosion resistance in water and mild chemical service
• 3/8 inch FNPT connections on both ends for standard NPT threaded pipe compatibility
• Union design allows full disassembly without disturbing surrounding pipe runs
• Suitable for plumbing, HVAC hydronic, and light industrial piping applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8 inch female NPT threaded piping systems requiring a stainless steel union.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing codes and ASME B31 piping standards. Shut off and depressurize the system completely before disassembly or installation. Apply appropriate thread sealant or PTFE tape to male NPT threads before assembly. Do not overtighten threaded connections, as stainless steel threads can gall if excessive force is applied.