XR - X-rings
Product group: X-rings
X-rings are four lipped seals with especially developed sealing profile. They are characterized by their annular form with a fourlipped profile. Their dimensions are specified with the inside diameter and the cross-section
The choice of a suitable material is determined by the temperature, pressure and media.
Depending on material: different liquids, gases and chemicals.
X-rings are self energizing double-acting sealing elements. The forces acting in radial or axial direction due to the installation give them its initial squeeze.
Area of applications
X-rings can be used for a wide range of different applications. They are used predominantly for dynamic sealing functions.
For sealing of reciprocating pistons, rods, plungers
For sealing oscillating or rotating movements
As a radial-static seal
As an axial-static seal
As an energizer element for elastomer energized hydraulic seals
Operational application limits
Working pressure, dynamic application
up to 5 MPa ( 50 bar) without Back-up Ring
up to 30 MPa (300 bar) with Back-up Ring
up to 15 MPa (150 bar) with Back-up Ring
Working pressure, static application
up to 5 MPa (50 bar) without Back-up Ring
up to 40 MPa (400 bar) with Back-up Ring
Reciprocating: up to 0.5 m/s
Rotating: briefly up to 2.0 m/s
Operating temperature range
NBR: -30°C to + 100°C
FKM: - 18°C to + 200°C