O-rings and Round Sealing Cords

O-RINGS
O-rings are seals with a round cross section made of rubber, silicone, metal and plastic materials. Depending on the material, O-rings can meet a number of industry standards and regulatory approvals.

O-rings can be used to form static or dynamic seals and are used for many purposes in all sectors of industry. O-rings are, for example, used to seal lids, flanges, covers, valves and fixtures. O-rings are also widely used for sealing purposes in hydraulic equipment.

At Betech, we work on the basis of three different classifications:

Low performance
O-rings that have no certifications or special requirements, such as seals for flashlights and watches.

Medium performance
O-rings with certifications. These might for example be for use in the food industry, or water and sanitation. The customer for medium performance O-rings might be, for example, a coffee machine manufacturer requiring foodstuffs and water certifications. This class typically includes customers in industries such as the food industry, the pharmaceutical industry, automation, marine, power/heating and HVAC.

This class also includes customers who are very demanding about tolerances.

High performance
O-rings used in industries such as oil/gas, refineries, marine and power/heating. The class includes customers who work in the extreme areas of the temperature spectrum for rubber, plastic or metal, i.e. temperatures from -250 ˚C to +260 ˚C

ROUND CORDS
Round cord can be used for sealing solutions when you have a greater opportunity to temporarily adjust the seal or when you do not need to seal all around the application (eg lamps that are kept close to the top but do not meet the same requirement at the bottom). Round cord is available in measured lengths and in all common rubber types.