O-ring cord SI

SI (Silicone Rubber)

O-ring cord in SI is primarily used for special dimensions or instead of deliveries of standard O-rings which first have to be ordered and which are therefore not available for immediate delivery.  Because Cord O-rings are cheap and simple, they have a very wide area of application in hydraulic and pneumatic systems.
Where working conditions and equipment are suitable, they can be used both in static and dynamic applications, but are not recommended for rotary movements.
As they take up less space and provide two-sided sealing compared with other sealing elements, O-rings make designing easier. Obtaining good results from O-ring applications depends on suitable measurements, choosing correct materials, and suitable surface quality on metal parts.

PROFILE


PRODUCT ADVANTAGES
• Can be used both for hydraulic and pneumatic system
• Can be used for static applications
• Wide compound range
• Wide range of dimensions
• Easy installation and removal
• Excellent resistance to heat, water, ozone, ageing and weathering
• Good cold flexibilities

APPLICATION
Used in almost in every industry but especially in non-moving machinery and in static sealing applications, e.g. as flange or cover seals.
Silicone O-rings are very clean and have an excellent resistance to bacterial growth. They are often used in industries processing food or medical products.

INSTALLATION
O-rings are fitted into the groove by hand. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation all individual parts of the seal must be lubricated. Be sure not to use a lubricant that will cause deterioration of the seal. E.g. do not use silicone oils.
Tolerances: DIN 3771 / ISO 3601

SPECIAL APPROVALS – FOOD-GRADE-QUALITY
We also stock specially approved materials for the food industry

NOTES
Silicone has a relatively low wear resistance, tensile strength and tear strength, and therefore silicone O-rings are not recommended for dynamic sealing. Do not use for acids and alkalis, hydrocarbon-based and aromatic hydrocarbon fuels.