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Fluorine rubber sealing ring -o type sealing ring specification design decides the product use

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Fluorine rubber sealing ring -o type sealing ring specification design decides the product use

Date of release:2019-06-27 Author: Click:

Fluoroelastomer is a copolymer of vinyl fluoride and hexafluorene. Depending on its molecular structure and fluorine content of fluorine elastomer chemical resistance and low temperature resistant performance is also different. Fluoro elastomers based on its excellent flame retardancy, excellent air tightness, high temperature resistant, resistant to ozone, weather resistance, oxidation resistance, resistance to mineral oil, fuel oil, hydraulic oil, aromatic and many organic solvents and chemicals are known for their performance.

For general brands, the service temperature under static seal is limited to approximately -26 ° c (-15 ° f) to 282 ° c (450 ° f). Although it may be used for short periods at 295 ° c, its service life is shortened when the temperature exceeds 282 ° c. The most suitable temperature for dynamic sealing is between -15℃ and 280℃. Low temperature can reach -40℃.

Fluoro rubber sealing ring - properties

(1) elastic and resilient;

(2) appropriate mechanical strength, including expansion strength, elongation and tear strength, etc.

(3) stable performance, not easy to swell in the medium, small thermal shrinkage effect (joule effect).

(4) easy to process and shape, and can maintain precise size.

(5) no corrosion of contact surface, no pollution of medium, etc.

Fluoro rubber seal - advantages

1. The sealing ring should have good sealing performance within the working pressure and certain temperature range, and can automatically improve the sealing performance with the increase of pressure.

2. The friction between the sealing ring device and the moving parts should be small and the friction coefficient should be stable.

3. Sealing ring has strong corrosion resistance, not easy to aging, long working life, good wear resistance, and can be automatically compensated to some extent after wear.

4. Simple structure, easy to use and maintain, what are the advantages of fluororubber sealing ring to make the sealing ring have a longer life.

O - ring specifications determine the use of products

O-ring is suitable for various mechanical equipment, in the specified temperature, pressure, and different liquid and gas medium, in the static or moving state of sealing. In machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and all kinds of instruments and meters, a large number of applications of various types of sealing components. Silicone O ring silicone O ring has excellent heat resistance, low temperature elasticity and especially excellent performance of oxidation and ozone resistance, with high permeability and gas selectivity. Good electrical insulation (volume resistance greater than 1016 ohm. Cm, breakdown voltage above 30kv/mm), corona and arc resistance. But adding conductive carbon black, nickel powder, aluminum powder, silver powder o-ring is mainly used for static sealing and reciprocating sealing. For rotating motion seals, only low speed rotary seals. O-type sealing ring is usually installed in the groove with rectangular cross section on the outer circle or inner circle.

Fluoro rubber sealing ring manufacturer


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