Anvil 361501406 Union Coupling 1-1/4" FNPT Black Forged Steel Class 3000

Union Coupling 1-1/4" FNPT Forged Steel

The Anvil 361501406 is a black forged steel union coupling rated Class 3000 for 1-1/4 inch pipe. It connects two female NPT threaded ends and suits Schedule 160 piping systems. The fitting handles a maximum operating pressure of 500 psi at 150 degrees Fahrenheit. It is supplied new for industrial plumbing installations.

Suited For High-Pressure Threaded Piping

This coupling fits builders joining two 1-1/4 inch female NPT threads in a Schedule 160 system requiring Class 3000 strength. It is not for buyers who need a different pipe diameter, a welded connection, or a lower pressure class. Installers requiring socket weld or butt weld ends should look at alternative fitting types.

Sustained Pressure Performance

The forged steel body maintains its 500 psi rating continuously at temperatures up to 150 degrees Fahrenheit without the pressure drop seen in short-burst tests. Thread engagement remains secure under prolonged thermal cycling and vibration typical of heavy-duty service. The union design allows repeated disassembly for maintenance without degrading the seal integrity.