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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Inside diameters, cross-sections, tolerances and designation codes. Our continual investment programs enable us to apply the latest control and inspection techniques. In typical applications, O-rings are well protected from less penetrating radiation such as ultraviolet and soft X-rays, but more penetrating radiation such as neutrons may cause rapid deterioration.

The escaping high temperature gas impinged upon the external tank, and the entire vehicle was destroyed as a result. But it is still important to maintain good surface finish of those mating parts, especially at low temperatures where the seal rubber reaches its glass transition temperature and becomes increasingly crystalline.

In other projects Wikimedia Commons. This was blamed on a failed O-ring seal. X We use cookies to help personalise and improve your web experience.

High shrinkage compounds may require 360-11 tooling to comply with ISO dimensions and tolerances, but will still allow for the principle of a more kso cross-section. By using this site, you agree to the Terms of Use and Privacy Policy. There are cottage industries of elastomer consultants assisting in designing O-ring-less pressure vessels. This twists the O-ring as the sealed device is cycled and finally causes a series of deep spiral cuts typically at a 45 degree angle on the surface of the seal.


This expansion causes blisters and ruptures on the surface of the seal. For example, NBR seals can crack when exposed to ozone gas ios very low concentrations, unless protected. In some high-temperature applications, O-rings may need to be mounted iiso a tangentially compressed state, to compensate for the Gow-Joule effect. Lundbergthe 33601-1 of the O-ring, received the patent.

However, the temperature of the rubber O-rings remained significantly lower than that of the surrounding air. O-rings can, if needed, be recalled off the shelf. Total control of all aspects of seal manufacture ensures that we always comply with recognised standards applied by the industry. At Superior, we pride ourselves on our precision o-ring range which exceeds the cross-sectional tolerances for the following dimensional standards.

An O-ring is one of the simplest, yet highly critical, precision mechanical components ever developed. 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. Spiral Failure — Found on long-stroke piston seals and — to a lesser degree — on rod seals. Sizes are specified by the 360-11 diameter and the cross section diameter thickness.

ISO 3601 Metric O-Rings

Find Similar Items This product falls into the following categories. By dissipating these charges, these materials, which include doped carbon-black and rubber with metal filling additives, reduce the risk of ignition, which can be useful for ios lines.

In the Superior o-ring size list, the internal diameters conform to ISO tolerances and the 6301-1 section diameter has a reduced tolerance. O-rings and all other seals work by creating positive pressure against a surface thereby preventing leaks. Instead, higher mounting forces are used and the ring fills the whole groove. X-rings are most commonly used in reciprocating applications, where they provide reduced running and breakout friction and reduced risk of spiraling when compared to O-rings.


Take the smart route to manage medical device compliance. In reality, in the market place iiso are many more.

Click the image to enlarge High shrinkage compounds may require dedicated tooling to comply with ISO dimensions and tolerances, but will still allow for the principle of a more accurate cross-section.

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This allows a high local stress, able to contain high pressure, without exceeding the yield stress of the O-ring body. The shape can have different profiles, an x-shaped profile, commonly called the X-ring, Q-ring, or by the trademarked name 3610-1 Ring. Skip to main content. Accept and continue Learn more about the cookies we use and how to change your settings.

O-Ring standard ISO | Engineer Live

The ambient temperature was within launch parameters, and the launch sequence was allowed to proceed. Space Shuttle 3061-1 disaster.

This is now recognized in the revised standard. All documentation for dispatch to the customer conforms to the ISO standard. Swelling by contact with a low viscosity fluid causes an increase in dimensions, and also lowers the tensile strength of the rubber.

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