SEALING ELEMENTS 12. O-ring Gland Design The following pages contain basic O-ring gland design information. Please contact the local ERIKS repre-sentative if an application does not clearly fall into these design parameters. Static Applications There are five types of static O-ring applications: • Flange seal • Radial seal • Dovetail seal ...
O-Rings by Boyd Corporation is an ISO9001, AS9100C, ISO13485 and ISO14001 registered manufacturer offering high quality O-Rings and custom rubber seals available to ship globally — all at the best value in the industry.
O-ring Materials for Static and Dynamic Sealing Applications. Ace Seal offers a broad range of O-ring materials in different colors and sizes to meet your sealing application requirements. We provide O-rings for industries ranging from oil and gas to aerospace and offer
O-Ring Seals for Vacuum Applications 2 Avoid having tool marks perpendicular to the O-ring sealing line. This creates a built-in leak path. The ideal surface finish for any vacuum seal flange has a circular lay O-ring Vacuum Seal Dovetail & Half-dovetail Grooves It is often necessary to provide some means for retaining an O-ring in a face
The good news is that static applications (such as an O-ring between a threaded fitting and a -threaded port) are more tolerant of material choice than dynamic applications (such as crankshaft seals or master cylinder seals). This article focuses on static seals only.
Technical Principles | O-Rings and Static Seals Installation in a rectangular groove with radial change of shape For the sealing of mortices, sockets, bolts or covers with centering shoulders, ISC O-Rings are usually installed as in the figure below. The cross-section of the ISC O-Ring (d2) is radially deformed upon installation. Whether the ...
O-Ring Seals Design Parker's application engineers are available to assist you in the design process. They will review your applications, study all factors involved such as temperatures, pressures, gland design, bolt torque, surface finish, etc., and suggest several alternative designs.
O-Ring Design Considerations What to Know About O-Ring Squeeze, Stretch, Compression, and More . Our o-ring groove design guides list default o-ring groove dimensions for the most basic applications and are intended to be used with the following o-ring groove design considerations to engineer on o-ring gland to optimize specific application performance.
O-ring face seal (ORFS) fittings are a highly popular and reliable choice in hydraulic and tube connections. Well designed ORFS connections provide a seal that is highly reliable due to its elastomeric seal and is one of the best choices for a leak-free connection. As the name implies, O-ring Face Seal (ORFS) fittings incorporate an O-ring at ...
The closer the application is to room temperature, the longer the O-ring can be expected to effectively seal. Frictional Heat Buildup As the generation of frictional heat is inevitable with rotary seal applications, it is suggested that the seal be composed of compounds featuring maximum heat resistance and minimum friction generating properties.
The O-ring is the simplest and commonly used sealing or packing device because of their circular cross-section which acts as a seal in static and dynamic applications due to compression between the mating surfaces within gland walls where they are set-up. The most commonly used O-ring is the elastomeric material. O-ring seals act like a seal by hindering any pathway of a gas or liquid …
Dynamic O-Ring Sealing 5-2 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 † Fax: (859) 335-5128 Dynamic O-Ring Sealing
Selecting High Performance O-Rings for Static and Dynamic Applications. O-Rings are a critical component of nearly every type of application. These donut-shaped engineered high performance seals, seal connections in equipment by forcing a rubber seal into a channel and applying mechanical or hydraulic pressure to prevent clearance of a less viscous material.
SEALING ELEMENTS 3. O-ring Applications The O-ring is one of the most popular seal choices because: 1.The O-ring is cost effective in purchase price and the cost to machine the seal groove is relatively low. 2.As a bi-directional squeeze seal, the O-ring can be used in an extremely wide variety of successful applications, both static and dynamic.
O-Ring Basics. As the name suggests, o-rings are round, ring-shaped sealing devices that sit in a groove between two parts, which are often cylindrical. It is the compression of the two parts that allow the o-ring to form an air or liquid-tight seal. Generally, o-rings can withstand pressure and vibration within their application. Based on ...
An O-ring has proved to be a practical rotary shaft seal in many applications. With the correct design, Parker O-Ring rotary seal compound N1090-85, will provide satisfactory service at surface speeds up to 1500 feet per minute. The design conditions are most critical for rotary seals, as would be expected.
Oscillating Seals: In an O-ring application, the shaft always creates an arc while moving. Also, the shaft comes in touch with ID of the seal. The shaft has a tendency to twist, while in rotation. Thus, durable seals are used in such applications. The O-rings act as rotary seals under appropriate conditions. Appropriate hardware configuration ...
Other forms of static O-rings include crush seals, dovetail glands, and radial seals. Dynamic O-Ring. A dynamic seal occurs when there is motion between two components and sealing is required. The motion can take several forms and can require more than one application for a single operation.
Quad-Rings® Brand and O-Rings seals are routinely used for face seal applications, which can be either static or dynamic applications. General Considerations The seal should be selected and the groove should be designed so the seal is always positioned against the side of the groove opposite the pressure.
When deciding whether a gasket or O-ring is best for your application, consider the environment and function of the seal. When choosing the best seal, look for features such as shape, temperature, and pressure. When a non-circular joint requires a good seal, an O-ring would be difficult to use because of its round shape.
But with all of the options and variables, picking the proper o-ring materials for your specific application also means considering many factors. Some of these factors include (but are not limited to): operating conditions, chemical compatibility, sealing …
Since most O-rings are made of rubber, the thermal conductivity is extremely poor. Therefore, frictional heat will cause the aging of the rubber, leading to the effectiveness of the O-ring and destroying its sealing performance. Friction can also cause damage to the surface of the O-ring, reducing the amount of compression.
The O-Ring sits in the middle of a gland when it's at rest, but as pressure begins to rise in the sealing system, the O-Ring shifts to the opposite side of the pressure. Because the material is soft, the O-Ring is mechanically squeezed to plug the hole between the two mating hardware pieces.
Seals and O-Rings. Parker, the global leader in motion and control technologies, develops and manufactures innovative sealing solutions to meet the challenges of today's vastly changing industries. From fluid power and aerospace to life sciences and solar power, Parker provides a wide range of specialty elastomers to satisfy unique sealing ...
Therefore, the best O-Ring material is the material best-suited for the application. Today, the familiar donut-shaped gasket is used in a variety of static or dynamic applications and is one of the most common seals used in machinery throughout the world. The O-Ring is very much an indispensable component. Any mechanical system whose parts ...
found under their respective columns. The Pressure Seals O-ring size will be found in the first column next to the shaft diameter. BACK-UP RINGS (Design Chart 7) When you have a tendency for O-rings to extrude between the sealing areas under pressure, there are three choices available to minimize this: 1. A harder O-ring material may be used. 2.
APPLICATIONS O-Ring Application Theory Typically, an o-ring is an elastomeric seal molded in the shape of a torus (doughnut). During proper operation, o-rings are squeezed between the housing walls of their application and seal off the leakage pathway. At atmospheric pressure, only this o-ring compression is providing the seal. As system pressure
on O-ring drive belts and their application will be found in O-Ring Applications, Section III. 1.2 What is an O-Ring Seal? An O-ring seal is used to prevent the loss of a fl uid or gas. The seal assembly consists of an elastomer O-ring and a gland. An O-ring is a circular cross-section ring molded from rubber (Figure 1-1). The gland ...
Application and function. The metal O-ring is axially pressed between parallel surfaces, which are arranged at right angles to the flow or to the vessel, as typical application. The sealing is usually placed in an open or closed groove, but can also be installed in a holding device. The working of a groove can be omitted for this reason.
Selecting an O-Ring material for a specific application depends on many important criteria including: Service Conditions (media to be sealed, temperature range, pressure/vacuum range, dynamic motion) Design Attributes (component geometry, desired service life, installation considerations, tolerances)