FPM O Ring Manufacturer
Product Description
O-ring is a rubber seal ring with a circular cross section. It is
called O-type rubber seal ring because of its O-shaped cross
section. It first appeared in the middle of the 19th century and
was used as a sealing element for steam engine cylinders.
Material
The materials of O-rings are mainly nitrile rubber NBR and
fluororubber FKM.
Function
O-rings are suitable for installation on various mechanical
equipment. They can seal at a specified temperature, pressure, and
in different liquid and gas media in a static or moving state.
Working principle
Place the O-ring in a groove of suitable size. Due to its elastic
deformation characteristics, each surface is compressed into an
elliptical shape, closing every gap between it and the bottom of
the groove, thereby playing a sealing role.
Advantages
Compared with other types of sealing rings, O-rings have the
following advantages:
(1) Suitable for a variety of sealing forms: static sealing,
dynamic sealing.
(2) Suitable for various materials, the size and groove are
standardized, and the interchangeability is strong.
(3) Suitable for a variety of motion modes: rotational motion,
axial reciprocating motion or combined motion (such as rotational
reciprocating chemical book combined motion).
(4) Suitable for a variety of different sealing media: oil, water,
gas, chemical media or other mixed media.
(5) By selecting suitable rubber materials and appropriate formula
design, it can achieve effective sealing for oil, water, air, gas
and various chemical media. The temperature range of use is wide
(-60℃～+220℃), and the pressure can reach 1500Kg/cm2 when used in
fixed position (used with reinforcement ring).
(6) Simple design, compact structure, easy installation and
disassembly.
Application
O-rings are mainly used for static sealing and reciprocating motion
sealing. As sealing elements, they are widely used in machine
tools, ships, automobiles, aerospace equipment, metallurgical
machinery, chemical machinery, engineering machinery, construction
machinery, mining machinery, petroleum machinery, plastic
machinery, agricultural machinery, and various instruments and
meters.
