|
||
 |
The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More) |
Important Considerations for Selecting O-rings
|
From Apple Rubber Products, Inc.
In any sealing application, correct O-ring selection is the result of a number of design considerations including dimensions, chemical compatibility and the ability to resist pressure and temperature extremes. It is helpful to pay particular attention to some basic sealing concepts when selecting an O-ring for your application. These include: Sealing Pressure - Sealing pressure is the force exerted by compression of the seal between the mating surfaces forming the gland itself and external forces (i.e. the fluid being sealed) transmitted through the seal. A physical barrier is formed when the force from compressing the seal and pressure applied by the fluid being sealed causes the seal to fill all leak paths. Products & Services
Dynamic seals include oil seals, hydraulic and pneumatic seals, exclusion seals, labyrinth seals, bearing isolators, and piston rings. They create a barrier between moving and stationary surfaces in applications such as rotating shafts and pistons rings. This is a general search form; more detailed search forms are available.
Search by Specification |
Learn more about Dynamic Seals
Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure. Seals are installed in the downstream side of the gland.
Search by Specification |
Learn more about Back-up Rings
Mechanical seals including mechanical face seals, bellows, gas seals, and cartridge seals.
Search by Specification |
Learn more about Mechanical Seals
Oil seals and grease seals have a flexible lip that rubs against a shaft or housing to prevent the leakage or ingress of fluids and dirt.
Search by Specification |
Learn more about Oil Seals and Grease Seals
Compression packing seals or gland seals are deformable materials used to prevent or control the leakage of fluid between surfaces that move in relation to each other.
Search by Specification |
Learn more about Compression Packing Seals
Product Announcements
Topics of Interest
In any sealing application, correct O-ring selection is the result of a number of design considerations including dimensions, chemical compatibility and the ability to resist pressure and temperature...
(Read More)
Glossary
B-G
balance diameter:
The diameter that separates the high (seal gas supply) pressure area from the low (seal vent) pressure area of the primary gas seal ring. This is typically...
(Read More)
Overview
Dry gas seals are gas-lubricated, mechanical, noncontacting, end-face seals, consisting of a mating (rotating) ring and a primary (stationary) ring. The principal rotating components...
(Read More)
Dry gas seals are available in a variety of configurations, including single, tandem, tandem with intermediate labyrinth, triple, and double opposed. Triple gas seals were used in the past when tandem...
(Read More)
3.7 Magnetic Fluid Seals
Magnetic fluid seals have been available since the early 1970s. The major application is as a rotary seal in vacuum applications and other specialist high integrity gas...
(Read More)
|
|
