Pneumatic Seals: Features, Uses and Applications
Pneumatic Seals are the ones used in pneumatic cylinders and valves. A pneumatic cylinder or valve is one that is air or gas-actuated, at the desired pressure levels. An air-powered or driven device needs to make use of high quality seals so as to maintain the specified pressure level and to safeguard against leaks and ruptures.
They might be used in either rotary or reciprocating motion pneumatic devices. However, an important aspect is that they are not designed for extreme high pressure conditions, like the ones found in hydraulic devices. It is strongly recommended that you consult with your supplier or distributor of seals so as to use the right product for your application.
1. They are manufactured as single or double-acting seals in several different configurations. Some common examples include: rotary shaft, o-rings and back-up rings, static seals, wipers, gaskets, v- and u-cups, and so on.
2. They are manufactured in a variety of materials. The nature of the application determines the suitability of the material to be used.
3. They are efficient in that they create a tight seal even with the least amount of lubrication, when they are exposed to air.
4. They are suitable for use in high-speed, low-pressure applications.
5. The pressure range could vary from a pound-force of 1psi to 150psi. The pressure range of a hydraulic seals is far greater.
It is possible to manufacture with a single material, or composites. Composite seals feature a combination of two or more materials so as to optimize the application-specific characteristics.
Seals for pneumatic applications are available in several different orientations. These include internal, external, symmetrical, or axial. The market comprises several leading brands that manufacture high-quality and ancillary sealing products. It is imperative to invest only in the finest quality so as to ensure the safety of your application. Seal failures have been known to cause substantial damage.
The applications range from high-end rockets used in space missions to automotive and aerospace engines. They are also used in the oil and refinery industries, as well as vacuum applications. Military applications need to rely on the usage of high-grade that will withstand rugged and extreme applications.
No matter what the nature of your application, the pneumatic seals used therein should always be sourced from a reputable supplier. The quality, durability, specifications, and pricing are just a few aspects that you would need to take into consideration while choosing with pneumatic applications. The market features a number of distributors of seals and sealing products that can help you procure the right product.