Technical O-Ring Seals According to PN-90/M-73092 Standard
O-rings are characterized by a torus-shaped construction, which is a ring with a circular cross-section.
Manufacturer Power Rubber offers O-rings made of various elastomers (such as FKM, VMQ, NBR, EPDM) and with different hardness. The choice of material hardness determines the working environment pressure and the seal width. Depending on the material chosen, O-ring seals are known for their excellent gas tightness, resistance to high temperatures, and chemicals.
Rubber rings with a circular cross-section according to ISO are characterized by elasticity and resilience. Thanks to these properties, O-ring seals have a wide range of applications in static and dynamic applications.
O-rings are used to prevent unwanted leakage of the working medium (liquids, gases) and to prevent contaminants (chips, dust, moisture) from entering machine and equipment components.
The PN-90/M-73092 standard covers circular sealing rings used in hydraulic and pneumatic control and drive systems. They are used for clamping seals in moving and static joints in hydraulic and pneumatic equipment, as well as in other connections of machine and equipment components. This standard specifies the requirements and tests that must be met to provide high-quality seals.
Dimensions and dimension designations
An example of how circular sealing rings are designated according to PN-90/M-73092:
20x2 FKM 80 S PN-90/M-73092, where:
inner diameter D = 20 mm
cross-sectional diameter d = 2 mm
material type: FKM
hardness on the Shore A scale: 80
execution class symbol: S (special application)
standard: PN-90/M-73092
Need technical O-ring seals compliant with the PN-90/M-73092 standard?
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