ISO 3601-1 PDF

ISO. Fifth edition. Fluid power systems — O-rings —. Part 1: Inside diameters, cross-sections, tolerances and designation. The ISO Size Code for these O-Rings is the same as the AS dash number. Class B allows production of O-Rings in technically. BS Dimensions of toroidal seals (O-rings) and their housing sizes (inch sizes); BS ISO Fluid power systems – O-rings Part 1: Inside diameters.

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Until the harmonisation between the AS and ISO standards, it was not possible to specify housing dimensions and retaining rings. Process – Process Equipment. Many O-rings now come with batch and cure date coding, as in the medicine industry, to precisely track and control distribution. Surface finish is also especially important in dynamic applications.

On Chart 50 in our O-ring guidethe reference numbers highlighted in red indicate those sizes covered by:. Seal rings ISO standards.

American National Standard Aerospace size standard for O-rings Although the basic range is in inches, the O-rings can of course be used for sealing metric dimensioned components. This twists the O-ring as the sealed lso is cycled and finally causes a series of deep spiral cuts typically at a 45 degree angle on the surface of the seal.

Sizes are specified by the inside diameter and the cross section diameter thickness. Self-contradictory articles from November All self-contradictory articles Commons category link is on Wikidata.


Standards and sizes

But, there are new izo that may take some of the burden of critical sealing away from the O-ring. The square ring is typically manufactured by molding an elastomer sleeve which is then lathe-cut. O-rings are available in various metric and inch standard sizes. A surface finish that is too rough will abrade the surface of the O-ring, and a surface that is too smooth will not allow the seal to be adequately lubricated by a fluid film.

Compression Packing Product Selector. Elastomers are selected according to the situation. Using conductive carbon black or other fillers 3610-1 exhibit the useful properties of conductive rubbernamely preventing electrical arcing, static sparks, and the overall build-up of charge within rubber that may cause it to behave like a capacitor electrostatic dissipative.

The flexible nature of O-ring materials accommodates imperfections in the mounting parts.

Air filter Blowoff valve Boost controller Butterfly valve Centrifugal-type supercharger Cold air intake Dump valve Electronic throttle control Forced induction Inlet manifold Intake Intercooler Manifold vacuum Naturally aspirated engine Oso intake Scroll-type supercharger Short ram air intake Supercharger Throttle Throttle body Turbocharger Twin-turbo Variable-geometry turbocharger Variable-length intake manifold Warm air intake.

The seal is designed to have a point contact between the O-ring and sealing faces. Our Chart 50 meets the Class A tolerances.

Standards and sizes

Also, in Class B, the five standard cross sections are replaced with a table of tolerances using a formula. As long as the pressure of the 33601-1 being contained does not exceed the contact stress of the O-ring, leaking cannot occur. With our expertise we can closely define and control seal tolerances and surface characteristics. When squeezed upon installation, they seal with 4 contact surfaces—2 small contact surfaces on the top and bottom.


O-ring materials may be subjected to high or low temperatures, chemical attack, vibration, abrasion, and movement.

O-Ring standard ISO 3601

The pressure of the contained fluid transfers through the essentially incompressible O-ring material, and the contact ieo rises with increasing pressure. We thoroughly recommend that all quality and specification issues are addressed at the earliest point in the development stage of any new project. Customers who bought this product also bought BS EN The use of nano-PTFE in fluoroelastomers and perfluoroelastomers improves abrasion resistance, lowers friction, lowers permeation sio, and can act as clean filler.

The standard level is Grade N. At the low end, nearly all engineering materials become rigid and fail to seal; at 360-11 high end, the materials often burn or decompose. Synthetic rubbers – Thermosets:. We use cookies to make our website easier to use and to better understand your needs.

By using our website you consent to our use of isoo, some of which may have already been set on your device. Explosive Decompression – An O-ring embolism, also called gas expansion rupture, occurs when high pressure gas becomes trapped inside the elastomeric seal element.