What is an O-ring face seal?
O-ring face seal fittings can eliminate leaks in hydraulic systems at operating pressures as high as 6,000 PSI. They are designed specifically for applications where elastomeric seals are acceptable to overcome leakage and variations in assembly procedures.
What is an axial seal?
Axial seals, which are upstream elements, protect housing interiors from dirt, dust and splash water. Each axial seal consists of a coated metal ring and an elastomer sealing element. If desired, the metal ring is also available in stainless steel.
What is the difference between seal and O-ring?
What Are Gaskets and O-Rings? Gaskets are flat pieces of material used to make a seal between two flat surfaces, usually with a bolted joint. O-rings are round, ring-shaped pieces that must set in a groove to create a seal between two parts.
What are the different types of O-rings?
Some of the common types of O-ring materials include PTFE, Nitrile (Buna), Neoprene, EPDM Rubber and Fluorocarbon (Viton). Silicone and Kalrez® O-ring materials are also widely used, especially in high temperature applications.
What is an O-ring boss fitting?
An o-ring boss seal is a technique for joining two fluid-carrying pipes, hoses, or tubing. In an o-ring boss (abbreviated ORB) system, a male-threaded part is inserted into a female-threaded part, providing a mechanical seal.
What is radial O ring?
A radial seal uses the radial cross section of the O-ring to seal around a piston. There are two variations of a radial seal: a male and a female design. The male design places the groove and O-ring on the piston. This may also be called a piston seal.
How do radial seals work?
The common radial oil seals works by creating a thin layer of oil between the rubber sealing lip and the shaft which results in the oil lifting the sealing lip clear of the shaft. This thin layer of oil performs a barrier and prevents leakage of the oil past the sealing lip.
What are O rings used for?
What are o rings used for? O rings are used to block a path which may otherwise allow a liquid or a gas to escape. The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
What is O-ring used for?
What are O-ring seals made of?
Due to many applications, there is also a wide variety of O-ring material choices available. Nitrile (Buna), Neoprene, Ethylene Propylene (EPDM Rubber), Silicone, Fluorocarbon (Viton), and PTFE (Teflon) are among the most commonly used compounds for O-rings and seals.
What’s the mistake in designing an O-ring axial face seal?
A common mistake is to design the groove width to “pinch” the o-ring cross-section, so it is held in the groove. The critical design point to keep in mind is homogenous rubber acts like a highly viscous fluid. Therefore, the volume is displaced, not compressed.
Where is the O-ring in a face seal?
Most o-ring face seal applications have a groove designed into one of the mating hardware components. The geometry of the groove is important – the dimensions need to be specific because the o-ring is located in the groove. One of the most important specified dimension is gland height.
What are global O-ring and seal groove guidelines?
Global O-Ring and Seal has developed o-ring groove design and gland dimension guidelines. These are intended for use in basic design consideration and to understand the core principles involved in o-ring gland/groove design.
Do you need an ID wall for an O ring seal?
No ID gland wall for internal pressure. Some flange seal applications do not have very much flange width for the o-ring gland. For internal pressure applications, the gland inside wall may be eliminated to allow room for a larger robust o-ring cross-section. This design is acceptable for most internally pressurized o-ring seals.