Failure can occur catastrophically by exceeding the yield point by a large amount or more slowly by subjecting the ring groove to progressive plastic deformation until it can no longer retain the ring. It also provides an overview of international sizes and standards, and compatibility data for fluids, gases and. Gland depth x groove width area of the gland must be larger than the cross section area of the o ring pi x r2. Silicone wedding ring band men women 4 5 rings pack designed silicone rubber rings comfortable durable wedding ring replacement matching sets u. This allows you to have a frictionless design if necessary.
Make sure the squeeze % is sufficiently high enough to seal, but low enough to allow dynamic movements. If you are unsure what crosssection size to use, see here. Internal retaining snap ring sive designations all data is in inches. O ring handbook parker hannifin o ring division europe. A small crosssection does not provide the surface contact area required for an effective seal, especially in. Oring handbook parker hannifin oring division europe. Parkers inphorm not only addresses standard oring sizes, but will allow the user to custom. Also, nprs steel ring designs with greater material strength, reduced width and radial wall dimensions conform better. Depending upon the design method used the interface pressure may be considerably higher than the. Metric o ring groove designs vary greatly and choosing the right one for your application is important for maximum o ring performance. In the tables the groove depth always includes the machined groove depth and the clearance gap. Browse design considerations and recommendations for static face seals, metric orings, static dovetail orings, static rodpiston orings and dynamic rodpiston orings.
The formula below calculates the rpm at which the force h olding the ring tight on the groove cling becomes zero. Oring groove design considerations and engineering guides for static face seals, metric orings, static dovetail orings, static rodpiston orings and dynamic rodpiston orings. You pick one, then it resets the friggin data i already provided but then it calculates a bunch of. Those who are already familiar with oring seal design may simply refer to the appropriate design tables for the information needed. The groove of the ring should never be the same as the ring thickness, or else the ring will never install correctly. This thinner and lighter design seals more completely against the ring groove. Oring gland design guidelines dichtomatik oring handbook oring gland design guidelines 2 oring. Understanding oring material test data oring material performance test. O ring gland design clearance gap pressure groove depth and clearance gap the right groove depth in o ring applications is very important because it strongly influences the squeeze of the o ring cross section. Internal retaining snap ring sizes and groove design chart. Please contact the local eriks representative if an application does not clearly fall into these design parameters. The parker oring handbook has been a standard reference work used by seal designers for. For piston applications groove width w values do not apply for 001003.
Determine the maximum clearance present in your application. Determine the maximum percent gland fill using equation 6. The o ring groove flange principle is significantly different to other flanges. Select a quadring brand crosssection size from the available standard sizes. Sealing elements technical handbook orings 1 all the information in this documentation has been compiled with the greatest of care. Metric o ring groove dimensions are listed for the most common metric cross sections with and without backup rings. The goetze brand is backed by more than 100 years of experience and knowhow. This is a standard oring groove with narrower sections every 2 to 4 inches that pinch the spiral in place. The whole assembly is secured with a single bolt that passes through a tab on the outlet pipe into a threaded boss on the turbo compressor housing. As a leading global supplier of powertrain technologies, federalmogul corporation is considered an expert in the design and manufacture of automotive piston rings. Retaining snap ring is a fastener that holds components or assemblies onto a shaft or in a housingbore when installed in a groove. Static quad ring seals with wide variations in squeeze and groove dimensions can be used with satisfactory results. O ring groove design is a key consideration in the o ring selection process. Eriks nv oring technical handbook oring gland design.
In order to seal properly the oring has to deform in the application by being compressed and stretched in any number of ways. Each month, select 40100 of your favorite photos of the month to highlight in your next groovebook. Despite this we can bear no responsibility whatsoever for any errors prese. Since this groove can be diecast or molded into an enclosure, it is ideal for use in highvolume costsensitive applications. Federalmogul has published the goetze piston ring handbook to inform specialists and future generations of engineers about the key areas of piston ring technology. Also, nprs steel ring designs with greater material strength, reduced width and radial wall dimensions conform better to less than perfect cylinder bores. Once you find the right o ring groove design you can easily order online from the worlds largest. Flanges using flat gaskets or metal rings must apply considerable loads to the gasketring to provide a sealing interface pressure. Squeeze inches oring cross section diameter in inches gland depth. The following tables give oring gland dimensions for static and dynamic reciprocating applications. Quadring brand seals for static and nonrotary dynamic applications. Ring shear design recommendations if groove deformation rears its head, an obvious noredesign strategy is to specify hardened or higher.
For designing systems which contain internal pressure, like the example below, the grooves outside diameter od is primary, and the grooves width then determines the inside diameter. O ring groove design guide for static face seal glands. Gland depth x groove width area of the gland must be larger than the cross section area of the oring pi x r2. It started out well enough design an oring to fit a bore. Squeeze inches o ring cross section diameter in inches gland depth. This metric oring groove design reference guide will help you find the right radius, backup, pressure and other oring dimensions for basic applications. Oring groove design guide for static face seal glands. That suggests a series of orings that might work by id and crosssection.
Comfortable durable wedding ring replacement matching sets u. Groove life silicone wedding ring for women breathable rubber rings for women, lifetime coverage, unique design, comfort fit womens ring thin metallic. O ring selection and groove design assistance the bore is 48mm, and the stock output pipe has an o ring on the end that fits into the bore. Steel piston rings allow for a reduction in the radial wall thickness. Parker recommends utilizing our inphorm design software to guide the user through the design and selection of an oring and corresponding seal gland. The reason for the two oring design is that it is possible to pump out the space between the two orings. This design guide provides data on the most widely used type of seal.
Oring groove design is a key consideration in the oring selection process. Oring cross section and oring groove design data from row, inc. Groove design can reduce the tendency for extrusion. Once you find the exact metric oring you need, you can easily order online from the worlds largest oring inventory network. We can custom design a reproduction or something similar. Once you understand oring sizes, lets discuss how to use orings for lowpressure 0200 psig static sealing applications. This helps me to visualize what the gland is trying to do. Clearance refer to clearance chart section 42 to determine proper diametrical clearance, based on the pressure encountered and the hardness of the rubber compound.
This contemporary mens band features an asymmetrical square groove on a sandblasted flat comfort fit band. Custom sandblasted wedding ring with groove brilliant earth. In this guide we simplify the design data, give concise information on materials and facilitate part selection for specification and ordering purposes. Includes ring and groove design data, groove dimensional and tolerance information. Each photo book measures 4 by 6 inches and features a unique, colorful spine and cover design every month. You can take an oring groove down, in certain applications, 0. Refer to the table above to determine the groove width for the quadring brand crosssection size you have selected.
The design of the groove where the o ring sits plays a major role in how the o ring performs its sealing role. The most recent edition of the goetze piston ring handbook was published in may 2003. Oring groove design guides for face seal flange, dovetail flange, static cylinder and piston, and dynamic cylinder and piston designs. Circlips are fitted with spring retention in grooves and are suitable for the transmission of axial forces. Select an o ring crosssection size from the available standard sizes. This metric o ring groove design reference guide will help you find the right radius, backup, pressure and other o ring dimensions for basic applications. O ring groove design when specifying an o ring, choose the largest crosssection possible. Book depository books with free delivery worldwide. Dovetail groove engineering design guide custom oring. The design of the groove where the oring sits plays a major role in how the oring performs its sealing role. Orings and backup rings trelleborg sealing solutions. Static quadring seals with wide variations in squeeze and groove dimensions can be used with satisfactory results. Metric oring groove designs vary greatly and choosing the right one for your application is important for maximum oring performance. The following is internal retaining snap ring sizes and groove design chart for industrial applications.
For those who are unfamiliar with oring design, it is recommended to. External circlips are retaining rings for holding structural parts e. Groove plus life groove ring the worlds first breathable silicone ring original midnight blackblaze orangesize 10. Commonly used materials are solid inconel 718 and cladded inconel 625, which are difficult. Ace seals engineering design guide provides insight into the appropriate measures for installing these products. The groove must be designed to accommodate not just the oring size, but also its intended usage. The surface finish in the oring groove and on the flat mating flange must be at least 32 micro inch and preferably 16 micro inch. Seal ring grooves are critical features on many oil and gas components and require close tolerances and a highquality surface finish. The following pages contain basic oring gland design informa tion. Oring groove design when specifying an oring, choose the largest crosssection possible. Ficient design static oring groove design mechanical. Groove life silicone wedding ring for men breathable rubber rings for men, lifetime coverage, unique design, comfort fit mens ring original. These type of glands are used for a variety of applications, bolted flanges or removable lids. If the ring isnt correctly seated, the ring will easily work itself out of.
Shown here are some generally useable groove design data, but if you really want the whole story of oring seal design, this parker handbook is the real authority. Standard measured dovetail grooves are accessory products that are used to hold an oring in place during the installation or maintenance of a piece of equipment. An oring can perform sealing by means of squeeze under low pressure conditions. Static oring groove design if you dont understand it already, start by reading standard as568 oring sizing. Remember also that this clearance data is based on total. With inhouse compound and design expertise, testing and pro cess technology plus. Today, the design engineer is faced with a bewildering array of o ring statistics and advice. You can take an o ring groove down, in certain applications, 0. The face seal design chart below explains the hardware dimensions to use for an oring seal when the groove is cut into a flat surface. Gap mm info sealing gap mm calculated values at excentrical position of piston. As important as the oring seal itself is the groove that the oring seats into. Extrusion limits standard as568b metric dovetail an oring is contained in a gland and forced to flow into the surface imperfections of the glands and any clearance gaps available to it.
We have included static, dynamic, and pneumatic applications. Metric oring groove design guide offers gland information and default recommendations to assist in the oring selection process. Predicting the intensity of that type of load is a key part of retaining ring design. Otherwise many bad things will happen to your design.
Squeeze is the diametrical compression of the o ring between the bottom surface of the groove and the surface of the other mating part in the gland assembly. Molded tolerancesstandard oring tolerance charts, xring tolerances, molded rubber tolerances, extruded tolerances and rubber sheet tolerances. If you are using a backup ring in your application, increase the groove width by the maximum thickness of the backup ring. Despite this we can bear no responsibility whatsoever for any errors present in the documentation. Designing the parts of an application where orings will be applied is broadly termed o ring groove design. It also provides an overview of international sizes and standards, and compatibility data for. O ring seals for static and nonrotary dynamic applications. In order to seal properly the o ring has to deform in the application by being compressed and stretched in any number of ways. The high component value and complexity make process security essential. The following pages of spiral retaining ring and snap ring engineering design have been developed from over 40 years of. This book contains extensive information about the properties of basic sealing elastomers, as well as examples of typical oring applications, fundamentals of static and dynamic seal design and oring failure modes. Standard measured dovetail grooves are accessory products that are used to hold an o ring in place during the installation or maintenance of a piece of equipment.
The greater the crosssection, the more effective the seal and the longer the service life. If you dont understand it already, start by reading standard as568 oring sizing. Metric oring groove dimensions are listed for the most common metric cross sections with and without backup rings. Eriks technical manual oring gland design information.
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