Stainless steel tee - the difference between stainless steel straight tee and stainless steel oblique tee

2025-06-04

Stainless steel tee is a common pipe fitting in the pipeline system, mainly used to connect pipes in different directions. According to the angle between the branch pipe and the main pipe, it can be divided into two types: stainless steel straight tee and stainless steel oblique tee. Zhejiang Mingli Pipe Industry will lead you to analyze the differences between the two from three perspectives: structural shape, fluid characteristics, and installation requirements.

Structure and shape

Stainless steel straight tee: The main pipe and the branch pipe are vertically intersecting (that is, the angle between the branch pipe and the main pipe is 90°), and the shape is similar to "T", so it is also called "stainless steel T-type tee".

Stainless steel oblique tee: The branch pipe and the main pipe are not vertically intersecting, but are obliquely connected at a certain angle (usually 45°or 60°), and the shape is closer to "Y", so it is also called "stainless steel Y-type tee".

Fluid characteristics and application scenarios

Straight Stainless Steel Tee: Since the branch pipe is perpendicular to the main pipe, the direction of the fluid changes dramatically when it flows from the main pipe to the branch pipe, resulting in greater water flow resistance and stronger turbulence, and accompanied by noise.

Steel oblique tee: Since the angle between the branch pipe and the main pipe is small, the water flow resistance and turbulence are significantly reduced, which can effectively reduce noise and maintain fluid stability, and reduce the risk of blockage

Space requirements for installation

Straight stainless steel tee: During installation, it is only necessary to ensure that the branch pipe is perpendicular to the main pipe. However, since the branch pipe protrudes vertically, the space occupied is relatively large, and it is not suitable for installation in some narrow spaces.

Steel oblique tee: The branch pipe protrudes obliquely and occupies relatively small space, which is more suitable for use in compact spaces. However, because the branch pipe is connected at an oblique angle, in order to avoid angle deviation that will affect the fluid effect, the pipeline direction needs to be adjusted according to the design angle during installation, so there are certain requirements for construction accuracy.

1. The center positions of the two ends are different

The center points of the two ends of the stainless steel eccentric reducer are not on the same axis.

The center points of the two ends of the stainless steel concentric reducer are on the same axis.

2. Different operating environments

One side of the stainless steel eccentric reducer is flat. This design facilitates exhaust or liquid drainage and facilitates maintenance. Therefore, it is generally used for horizontal liquid pipelines.

The center of the stainless steel concentric reducer is on a line, which is conducive to fluid flow and has less interference with the flow pattern of the fluid during diameter reduction. Therefore, it is generally used for diameter reduction of gas or vertical liquid pipelines.

3. Different installation methods

Stainless steel eccentric reducers are characterized by simple structure, easy manufacturing and use, and can meet a variety of pipeline connection needs. Its application scenarios mainly include:

Horizontal pipe connection: Since the center points of the two ends of the stainless steel eccentric reducer are not on the same horizontal line, it is suitable for the connection of horizontal pipes, especially when the pipe diameter needs to be changed.

Pump inlet and regulating valve installation: The top flat installation and bottom flat installation of the stainless steel eccentric reducer are suitable for the installation of the pump inlet and regulating valve respectively, which is beneficial to exhaust and discharge.

Stainless steel concentric reducers are characterized by less interference to fluid flow and are suitable for reducing the diameter of gas or vertical liquid pipelines. Its application scenarios mainly include:

Gas or vertical liquid pipeline connection: Since the center of the two ends of the stainless steel concentric reducer is on the same axis, it is suitable for the connection of gas or vertical liquid pipelines, especially where diameter reduction is required.

Ensure the stability of fluid flow: The stainless steel concentric reducer has little interference with the fluid flow pattern during the diameter reduction process and can ensure the stability of the fluid flow.

4. Selection of eccentric reducers and concentric reducers in practical applications

In actual applications, appropriate reducers should be selected according to the specific conditions and needs of pipeline connections. If you need to connect horizontal pipes and change the pipe diameter, choose stainless steel eccentric reducers; if you need to connect gas or vertical liquid pipes and change the diameter, choose stainless steel concentric reducers.