X-Rings, also known as cross seals or X-shaped gaskets, are sealing elements with four lips and two main dimensions: inner diameter and height. They are a variation of O-Rings and are characterized by their cross-sectional “X” shape.

They are one of the simplest and most versatile types of seals, with a wide range of applications for both dynamic and static sealing. X-Rings are inserted into a dedicated groove and compressed during the assembly of two or more parts, creating a reliable sealing system.

X-Rings can be easily installed in grooves designed for O-Rings, making them suitable for both dynamic and static sealing and applicable in various technical applications. However, there are certain limits concerning operating pressure, speed, and temperature.

Regarding pressure, distinctions are made between linear and rotational movement:

Linear Movement:
– Up to 5 MPa (50 bar) without backup ring
– Up to 30 MPa (300 bar) with backup ring

Rotational Movement:
– Up to 2 MPa (20 bar) without backup ring
– Up to 15 MPa (150 bar) with backup ring

Similarly, speed considerations are divided into:

– Linear Alternating Movement: Up to 0.5 m/s
– Rotational Movement: Up to 1.0 m/s

The choice of material is also relevant:

– Standard material: -30 °C to +110 °C for linear alternating movement, and -30 °C to +80 °C for rotational movement
– Special material: -60 °C to +200 °C

X-Rings are highly versatile and practical gaskets capable of providing reliable sealing in various applications. However, it is essential to consider the limits of pressure, speed, and temperature to ensure optimal and long-lasting performance. Selecting the right material is crucial to adapt X-Rings to the specific requirements of each application.