Thursday 2 January 2014

Common phenomenon for rubber o-rings

A fluid power seal is a two piece design comprised of a standard size rubber square ring energizing a rectangular shaped PTFE cap. The fluid power seals from Darcoid Nor-Cal Seals offers excellent stability, long wear, low friction and extrusion protection.

The fluid power seal is commonly used in applications such as agriculture hydraulics, mobile hydraulics, machine tools, and hydraulic presses. Darcoid Nor-Cal Seal is the world’s leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets.

When choosing a sealing system, the desired result is ultimately leakage control. Seal design and material improvements have made it possible not only to have seal combinations that provide zero leakage, but also provide extended life in a variety of applications.

Aside from the seals themselves, a thorough understanding of system parameters is necessary to obtain the best results. Optimal sealing is best achieved by taking a system's approach to the seal package rather than considering components individually.

Fluid power seals from Darcoid Nor-Cal Seals have been designed specifically to complement one another to create high performance systems. For instance, pairing a Darcoid's rod seal with a wiper minimizes fluid leakage and maximizes contamination exclusion. Darcoid's rod seals are designed with knife-trimmed lips to ensure the best possible film breaking.

Teflon Seals, as the name suggest are back ups to prevent extrusion in rubber o-ring sealing systems. It is a common phenomenon for rubber o-rings to extrude especially with present day fluid systems that are a combination of high pressures and high temperatures. And this is a situation where the Teflon backup rings play a significant role in preventing o-ring extrusion.

These Teflon seals are ideal to be used as backup rings in aerospace applications especially in the Aerospace Standard AS-568A Uniform Numbering System. We assure you of the quality of these types of O-rings, as they have been successfully approved by fluid systems designers for its added flexibility in size selection.
These varieties are apt for use in sealing systems that are frequently subjected to severe duty cycles, or where pressures exceed 3,000 psi and temperatures are above 275 degrees Fahrenheit.

Apart from the above, Darcoid also supplies custom made Teflon seals and backup rings. This is to cater to the customers who have individual specifications for their special requirements. Darcoid Nor-Cal Seal also hosts a horde of special and high quality Machine and Molded Teflon seals like Piston Seals, Buffer Seals, Seat Seals, Scrapers, Valve Seals and V Packings for various industry requirements like Aerospace, General Fluid Power Industry, Food and Beverage Industry Equipment and Pharmaceutical and Medical sector.