Anvil 0300037603 Cast Iron Reducing Tee 1x3/4x1 Threaded

Product Description

The ANVIL 0300037603 is a cast iron reducing tee fitting designed for threaded pipe assemblies in commercial and industrial piping systems. Finished in black and rated at Class 125, this fitting joins three pipe runs while reducing one outlet from 1 inch to 3/4 inch, making it a practical choice wherever branch line sizing changes are required. All three connections are female NPT threaded, conforming to ASME B1.20.1 thread standards. The fitting meets ASME B16.3 and ASTM A-197 material standards and carries FM Approval and cULus Listing, meeting the certification requirements common in fire protection and mechanical system specifications.

This reducing tee is suited for low-pressure gas and liquid distribution lines in residential, commercial, and light industrial applications. Typical installations include natural gas branch lines, compressed air networks, and water distribution headers where a tee with a reduced branch outlet is needed. The Class 125 pressure rating and cast iron construction make it appropriate for use in both above-ground and exposed mechanical room piping where code-compliant fittings are required.

Key Features

• Cast iron construction with black finish for corrosion resistance in standard service environments
• Class 125 rated at 125 psi for liquid and gas service
• All female NPT threaded connections per ASME B1.20.1
• Reducing branch outlet: 1 x 3/4 x 1 inch configuration
• Meets ASME B16.3 and ASTM A-197 standards
• FM Approved and cULus Listed for use in code-governed installations

Compatibility

Designed as a standard Class 125 cast iron threaded reducing tee compatible with NPT-threaded pipe in 1 inch run and 3/4 inch branch configurations across gas and liquid distribution systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical codes such as the IPC or IFGC. Shut off and depressurize the line before disassembly or fitting installation. Apply an approved pipe thread sealant or PTFE tape to male threads before assembly. Do not over-tighten threaded connections in cast iron fittings, as the material is not tolerant of the same torque as malleable iron.