Legend Valve 450-253 copper reducing tee 1-1/2 x 1 x 3/4

Copper Reducing Tee 1-1/2 x 1 x 3/4

The Legend Valve 450-253 fitting joins three copper pipes of different diameters in a single branch connection. It suits residential and light commercial plumbing where a supply line must split to smaller outlets. The sweat-style ends require soldering, so installers need a torch and flux to complete the joint. This part is not for press-fit or push-to-connect systems that do not accept copper tube ends.

Sweat Connection Limits

Each port is a female copper sweat socket sized to the listed inside diameters of 1-1/2", 1" and 3/4", with corresponding outside diameters of 1-5/8", 1-1/8" and 1-1/8". The joint strength depends on proper cleaning, flux application and temperature control during soldering. The fitting cannot be used with threaded, compression or press adapters unless a separate transition piece is added. California Proposition 65 warnings indicate the presence of chemicals linked to cancer and reproductive harm.

Copper Build and Daily Implications

The solid copper body resists corrosion in potable water and hydronic heating loops, and it withstands normal system pressures without cracking. Because the three ports step down in size, the tee creates an inherent flow restriction at the smaller branches that designers must account for in pressure-drop calculations. The smooth bore minimises turbulence and scale build-up over time, but the soldered joints are permanent and cannot be disassembled for reuse or easy reconfiguration.