Selection guide for metal seals: What are the differences between O-type, C-type, E-type and U-type?

preface:

In the industrial field, metal seals play an important role as key sealing components. However, there are many types of metal seals to choose from for different engineering needs, including O-type, C-type, E-type and U-type seals. This article will conduct a comparative analysis of these different types of metal seals to help readers better understand the characteristics and applicable scenarios of various seals, so as to make a more informed choice.

O-shaped metal seal:

Features: O-ring seals have a simple circular cross-section design and are easy to install and replace.

Advantages: Excellent sealing performance, suitable for static and dynamic sealing, widely used in hydraulic systems, automobile manufacturing and other fields.

Disadvantages: Not suitable for high pressure and high temperature environments, and is easily affected by pressure and temperature and fails.

C-type metal seal:

Features: The C-shaped seal has a "C"-shaped cross-section design and can be easily installed in the shaft seal ring or groove.

Advantages: Good sealing performance, suitable for static sealing and dynamic sealing, commonly used in valves, pumps, automobile engines and other fields.

Disadvantages: The installation requirements are high and the seal needs to be ensured without damage or deformation.

E-type metal seal:

Features: E-type seals have an "E"-shaped cross-section design and are suitable for larger radial and axial extrusions.

Advantages: Suitable for high pressure and high temperature environments, with good pressure resistance and wear resistance, often used in hydraulic systems, chemical equipment and other fields.

Disadvantages: The installation is more complicated, and it is necessary to ensure that the sealing surface and the surface of the part are completely consistent.

U-shaped metal seal:

Features: The U-shaped seal has a "U"-shaped cross-section design and is suitable for dynamic sealing.

Advantages: Good sealing performance, suitable for high temperature and high pressure environments, often used in aerospace, petrochemical and other fields.

Disadvantages: The installation is more complicated and the processing requirements for the sealing surface are high.

comparative analysis:

O-type seals are suitable for sealing needs under general pressure and temperature conditions.

C-type seals are suitable for engineering equipment with high sealing performance requirements.

E-type seals are suitable for sealing requirements in high-pressure and high-temperature environments.

U-shaped seals are suitable for industrial equipment with high requirements on sealing performance and durability.

in conclusion:

The selection of appropriate metal seals should be comprehensively considered based on engineering needs, working environment and sealing requirements. The above comparative analysis can be used as a reference for selecting metal seals, helping you find the most suitable sealing solution to ensure the stable operation and safety performance of the equipment.

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