The diameter reducer is also called the big head. The diameter of the two ends is different. It is used to connect pipes or flanges with different diameters to reduce the diameter. The product type has concentric tube and eccentric tube, and the two ends of the concentric tube are on the same axis, which is generally used for the variable diameter of the gas or vertical liquid pipe. The two ends of the eccentric diameter pipe are cut inside the circumference of the pipe, and are generally used for horizontal liquid pipes. The products are made of stainless steel, alloy steel, carbon steel, nickel base alloy and so on.

Common standard