Merit Brass XNL187-16 Pipe Union 1 Inch Fnpt 125 Lb Brass

Product Description

The MERIT BRASS XNL187-16 is a 1-inch nominal brass pipe union with female NPT (FNPT) end connections rated at 125 lb. Pipe unions allow sections of pipe to be connected and disconnected without rotating the pipe itself, making them a standard fitting in plumbing and mechanical systems where future serviceability matters. This union is constructed from brass with a rough finish and carries a 125 lb pressure class rating. It is installed by licensed plumbers and pipefitters in applications where a break-apart connection point is needed in a threaded pipe run.

This union is suited for residential and light commercial plumbing, hydronic heating systems, gas distribution lines, and general mechanical piping where brass fittings are specified. The 1-inch FNPT connections thread directly onto standard NPT-threaded pipe and fittings. Its 125 lb pressure class makes it appropriate for low-to-medium pressure service in water, steam, and compatible gas applications.

Key Features

• 1-inch nominal size with FNPT end connections for standard NPT threaded pipe
• 125 lb pressure class rating for low-to-medium pressure service
• Brass construction offers corrosion resistance in water and compatible fluid applications
• Rough finish suitable for hidden or utility installations
• Union design allows pipe disconnection without rotating the pipe run

Compatibility

Designed as a standard OEM-style replacement or new-installation fitting compatible with 1-inch NPT threaded pipe systems using 125 lb class brass fittings.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Shut off and depressurize the pipe system before disassembly or installation. Apply appropriate thread sealant or PTFE tape to all male NPT threads before assembly. Consult applicable plumbing codes, such as the IPC, for pressure ratings and approved materials for your specific service application.

Technical Specifications

• Nominal Size: 1 inch
• End Style: FNPT (Female NPT)
• Pressure Class: 125 lb
• Material: Brass
• Finish: Rough
• Origin: Import

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: XNL187-16