Reducing TEE, also known as the size head, is one of the pipe fittings, used for the connection of two different pipe diameters in the pipeline; it is divided into two types: concentric size head and eccentric size head.

Reducing TEE is a kind of pipe fittings used for pipe diameter reduction. The commonly used forming process is reducing diameter pressing, expanding diameter pressing or reducing diameter plus expanding diameter pressing. For some specifications of Reducing TEE, stamping can also be used.

1. Diameter reduction/expansion forming
The reducing diameter forming process of Reducing TEE is to put a tube blank with the same diameter as the large end of Reducing TEE into a forming mold, and press it along the axial direction of the tube blank to move the metal along the mold cavity and shrink into shape. According to the size of the reducing diameter of the reducer, it is divided into one-time press forming or multiple press forming.

2. Stamping and forming

In addition to using steel pipe as raw material to produce Reducing TEE, some specifications of Reducing TEE can also be produced by stamping steel plate. The shape of the die used for drawing refers to the size design of the inner surface of Reducing TEE, and the blanked steel plate is punched and stretched with a die.