High Quality Rubber O-Ring/NBR FKM MVQ EPDM FFKM FVMQ PU Silicone O Ring
1 product feature of O Ring
O-ring is the general name of the ring with a circular section shape . It was first made in the 19th century and used as a steam o-ring made of cast iron
The sealing ring of an air cylinder . Later , it was made of natural rubber , sealed with dry faucets, and synthetic rubber in the 1940s
The o-ring of the material is used for sealing of air , gas, water , oil and other fluids , and is also widely used in general
Pneumatic , hydraulic and other machines .
One of the reasons for the sealing performance of the ring is that excellent synthetic rubber has been developed
The rectangular groove, formed by compression while used compared to its seals, has the following characteristics:
1 Simple installation structure integral groove design reduces the cost of parts and design ;
2 easy installation and assembly without personal differences ;
3 Good sealing performance motion friction is smaller than other lip end seals .
2 Materials and characteristics of O Ring
Materials |
Hardness(SH-A) |
Temperature( ℃ ) |
NBR |
70 |
-30/+100 |
NBR |
80 |
-30/+100 |
NBR |
90 |
-30/+100 |
FKM |
75 |
-15/+200 |
FKM |
80 |
-15/+200 |
EPDM |
70 |
-45/+130 |
VMQ |
70 |
-55/+200 |
HNBR |
75 |
-30/+150 |
NBR |
70 |
-30/+100 |