Black VQM 70 O Ring

Material VMQ 70 Colour Black Red Clear or Brown Dimensional tolerances according to DIN ISO 3601-1, industry class B Surface deviations according to DIN ISO 3601-3, type feature N For specific applications, the permitted dimensional tolerances can be restricted according to industry class A and...
Product description

Material

VMQ 70

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Colour

Black Red Clear or Brown


Dimensional tolerances according to DIN ISO 3601-1, industry class B

Surface deviations according to DIN ISO 3601-3, type feature N


For specific applications, the permitted dimensional tolerances can be restricted according to industry class A and the surface deviations to type feature S.


Materials with approvals and/or conformity tests for special applications (gas, drinking water, foodstuffs) are available, as required.

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Operational application limits 

Temperature VMQ 70: -55 °C to +200 °C


Function

O-rings are closed circular rings of circular cross-section. They are made through vulcanization from form tools as a complete ring. The sealing function of the O-ring is achieved by the deformation of the cross-section when installing and compressed in its housing. The O-ring can be compressed either radially or axially in its installation housing. In operating conditions, the pressure exerted by the media reinforces the sealing function, as under pressure the elastomer material functions as a non-compressible fluid.

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Applications

O-rings are used predominantly for sealing non-moving machine and system components (static application) and media in liquid and gas form, e.g. flange and cover seals, threaded tube connections and the cylinder head and cylinder bottom for hydraulic cylinders. Under certain conditions, it is also possible to use O-rings with reciprocating, rotating and helical movements (dynamic application). If the installation housing is finished properly, the construction design is right and the proper materials are selected, it is possible for pressures of up to 1000 bar to be sealed, with the use of backup rings, where required. O-rings are used in many sectors, such as the fields of hydraulics, pneumatics, vacuum applications, the fittings industry, the automotive industry and in plant and mechanical engineering.

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Installation housings

The installation housings (grooves) for O-rings should if possible be produced with right angles and should be processed with care. Burrs, scratches, and notches should be avoided. The dimensions for the required depth and width of the groove depend on the particular application and cross-section. You will find recommendations for construction and dimension tables in our O-Ring Catalogue. To facilitate installation, a variety of surface coatings can be supplied on application.

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Selection and design 

To ensure sound sealing effect, O-rings should be selected to offer the largest possible cross-section. The hardness of the O-ring material selected depends on the pressure, gap widths, type of sealing (static/dynamic) and the surface quality of the machine parts. For standard applications, we recommend a material hardness of 70 Shore A. Careful consideration should also be given to the correct compression, elongation or compaction and the degree to which the groove in the installation housing is filled.

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Welcome to contact me if you have any questions!


Email: allison@tjsvks.com


Skype :  allison207688


Wechat: +86 18522063486


TEL: +86 18522063486


Thanks in advance!


Allison



SVKS Seal, with over 10 years experience, is one of the leading black vqm 70 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.
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