CS4.5 mm Silicone O RING OD 20/22/24.4/27/30/32/34/38*4.5 mm 50PCS O-Ring VMQ Gasket seal Thickness 4.5mm ORing White Red Rubber

Mechanical Hardware>>>Home Improvement

Brand Name NoEnName_Null

Certification RoHS

Origin CN(Origin)

Model Number Thickness 4.5x20/22/24.4/27/30/32/34/38/40/42.5/45/48 mm

Material Silicon

Shape Ring Gasket

Standard or Nonstandard Standard

Size

OD20x4.5mm-Red

OD22x4.5mm-Red

OD24.4x4.5mm-Red

OD27x4.5mm-Red

OD30x4.5mm-Red

OD32x4.5mm-Red

OD34x4.5mm-Red

OD38x4.5mm-Red

OD40x4.5mm-Red

OD42.5x4.5mm-Red

OD45x4.5mm-Red

OD48x4.5mm-Red

O-ring Sealing Principles

O-rings are bi-directional seals, circular in shape and cross section. O-rings are generallymade of an elastomeric material, but may be made of other materials such as PTFE ormetal. An O-ring seals through the deformation of the seal material by installation and media pressure to close off the gap between mating components. Higher system pressures can cause deformation through the gap, known as extrusion, resulting in seal failure. Choosing a harder seal material or installing back-up rings to support the O-ring may alleviate this problem.

Method of operation

O-Rings are double-acting sealingelements. The inital squeeze,which acts in aradialora xial direction depending on the installation, gives the O-Ring its initial sealing capability.These forces are superimposed by the system pressure to create the total sealing force which increases as the systeme pressure increases (Figure 2).Under pressure, the O-Ring behaves in asimilar way to a fluid with high surface tension. The pressure is transmitted uniformly to all directions.

VMQ (Silicone Ring):

It has good electrical insulation properties. Tensile strength is worse than the general rubber and not oil-resistant, silicone temperature-resistant range temperature:-43~210℃, the most outstanding advantage is that it has excellent high temperature resistance, anti-static properties.

Application

The O-Ring is used predominantly for static sealing applications:- As aradial static seal, e.g. for bushings, covers, pipes, cylinders- As an axial static seal, e.g. for flanges, plates, caps.O-Rings in dynamic applications are recommended only for moderate service conditions.They are limited by the speed and the pressure against which they are to seal:- Forlow duty sealing of reciprocatingpistons, rods, plungers, etc.- For sealing of slowlypivoting,r otating or spiral movements on shafts, spindles,rotary transmission leadthroughs, etc.