O-Rings, the simplest, most versatile and cheapest seal on the market
The O-Ring is the most simple and versatile seal as well as the cheapest one in the market. Its shape has permitted the O-Ring to become the top seal in lots of industrial fields such as fittings, car industry, hydraulics, pumps, tubings…
An O-ring is a solid-rubber seal shaped like a doughnut or torus. When compressed between mating surfaces, an O-ring blocks the passage of liquids or gases. Two dimensions describe the size of an O-ring: its inside diameter (ID) and its cross-sectional diameter (CS).
The widespread use of O-Rings has enabled us to develop large-scale production processes with a consequent drop in manufacturing costs. The O-Ring´s circular symmetrical section means it can be used in both single or double effect applications with any type of fluids due to its elastomeric composition.
The radial or axial clamping method gives it a sealing property which, added to the pressure of the system itself, creates a sealing force which increases with the aforementioned pressure. In other words, in conditions of pressure the O-Ring acts as if it were a fluid, featuring a high surface tension and distributing all the pressure around in a uniform manner.
Its main benefits include simple assembly, simple housing designs, low cost, small size, excellent quality/price ratio, durability, and the wide range of materials in which O-Rings are available.
Data sheet
Type |
Material |
Hardness |
Temperature |
O-Ring |
NBR |
40-90 Sh A |
-40 to +120 ºC |
O-Ring |
FPM/FKM |
50-90 Sh A |
-20 to +200 ºC |
O-Ring |
MVQ |
20-80 Sh A |
-70 to +220 ºC |
O-Ring |
EPDM |
40-85 Sh A |
-50 to +150 ºC |
SVKS Seal, with over 10 years experience, is one of the leading practical and durable rubber seal ring silicon epdm viton nbr o ring manufacturers and suppliers in China. And we also offer the customized service catering to your special requirement. Please be free to buy the rubber products with competitive price from us.