From the Parker O-Ring Handbook and Material Offering Guide to finite element analysis and blogs, our engineering experts run the gamut of all sealing solutions. So it's no surprise that the top blogs over the last six years fall into categories that highlight their recommendations on O-ring design tips, installation basics, and O-ring sealing alternatives.
Bookmarking these blog favorites are sure to come in handy for your future sealing challenges. Simplify your research by checking out these top ten sealing solutions and design blogs by Parker O-Ring & Engineered Sealing Division.
One of the decisions equipment designers need to make when installing O-ring seals in their applications is how much the O-ring will be squeezed by its mating hardware to create an effective seal.
Can O-rings be used in rectangular or non-circular groove patterns? This question comes up weekly, and the answer is a resounding “Yes!” however there are definite guidelines we want to follow.
The physics of creating a face seal is relatively simple. In most sealing systems, the objective is to prevent fluid from leaking from a high-pressure location to a lower pressure location through a sealing gap. Sealing fundamentals should be followed for trouble free application.
O-rings are the simplest, most readily available type of seal used across every industry and market. They are arguably the best seal for many applications, but perhaps daunting to an engineer with no experience in seal design.
Conventional wisdom says that the more an O-ring seal is squeezed (i.e. deformed relative to it’s “unsqueezed” state), the tighter the seal. More squeeze equals greater force between the O-ring and its mating hardware — which means that liquids, gases and dry powders are otherwise prevented from flowing between the rubber seal and mating hardware.
The proper method of applying a lubricant to an O-ring always seems to be an area of concern for many of our customers and there are many methods used in the marketplace.
Efficiency gains in the automotive industry are not limited to engine designs. Transmissions are also undergoing significant changes to increase fuel mileage. To reduce friction and cope with more gears (or even an infinite number of gears with a Continuously Variable Transmission (CVT)), new Ultra Low Viscosity (ULV) transmission fluids and CVT fluids have been developed. Fortunately, Parker has already performed a significant amount of testing in these new fluids.
If O-ring damage happens with high frequency, you could be wasting time and money on seal replacement. Luckily, there are some easy steps that can be followed to help prevent this from occurring. Parker’s recommended guidelines for installation include always using lubrication, good gland design, and ensuring correct sizing.
It isn’t all that uncommon for a groove to be cut in a flange and a novice designer learns the hard way that standard O-rings cannot fit in just any groove geometry. For hardware that has already been machined, frustration ensues as the caller learns the O-ring solution requires tooling. Parker offers a TetraSeal® solution, which often does not require tooling and can be made of many of the same materials used for O-rings.
Samantha J. Sexton, marketing communications manager, Parker O-Ring & Engineered Seals Division
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