NBR and FKM material O Ring in metric

Material

Material: NBR/FKM
Hardness: 50-90 Shore A
Color: Black / Brown

Technical Data

Temperature: NBR -30℃ to + 110℃
FKM -20℃ to + 200℃
Pressure: with a back up ring ≤200 Bar
without a back up ring ≤400 Bar
Speed: ≤0.5m/s

It is important to understand what O-rings are and why they are such a popular seal choice. An O-ring is a round, donut-shaped object that is used to create a seal between two surfaces in a highly pressurized environment. When installed correctly, an O-ring seal can prevent nearly all fluids from escaping containers in both liquid and gaseous states.
The material of O-rings depends on their application, but common materials for O-rings include nitrile, HNBR, fluorocarbon, EPDM, and silicone. O-rings also come in various sizes since they must be fitted precisely to function correctly. These seals are called O-rings because of their circular or “O-shaped” cross-section. The shape of the O-ring stays consistent, but the size and material can be customized.

Once installed, the O-ring seal remains in place and is compressed in the joint, forming a tight, sturdy seal. With proper installation, material, and size, the O-ring can withstand internal pressure and prevent any fluid from escaping.

We have different size standard such as C-1976/AS568(USA size standard)/JIS-S series/C-2005/JIS-P series/JIS-G series.