Rotary and reciprocating motions within industrial applications will require pneumatic seals and cylinders. For this purpose, pneumatic seals will be required for these applications to run smoothly. These seals can be used in a variety of commercial applications. Pneumatic systems specifically use air to transmit power and are used to protect the system from repeated motion.
Single-acting pneumatic seals are used in systems where there is movement only in one, axial direction. Double-acting pneumatic seals are used in the case of reciprocating action where there is motion in both directions.
Fuzion Trading specializes in the production of pneumatic seals. Contact them today for a quotation.
Characteristics of a Pneumatic Seal
Pneumatic seals have a certain number of characteristics and features.
A pneumatic seal can incorporate a rod seal or piston seal and function to prevent leakage and to prevent damage to the machinery.
In the case of an internal seal, the housing bore will surround the seal and the lip will touch the shaft. The seal in this instance will not require much lubrication and will hold tightly.
Composite seals, comprising two or more materials, can also be used as pneumatic seals.
When air-actuated cylinders and valves operate at high speeds, they can enhance the operational values of these cylinders and valves.
Pneumatic seals have the capability of restricting and regulating the flow of air and as a result, play a pivotal role in regulating pressure. They are typically not suited for high-pressure environments and function optimally in low-pressure situations. They can also be designed with a spring for low-pressure environments, giving that extra durability and strength.
The seals are durable and have a very low level of friction, making them perfect machinery that is in motion.
When exposed to air they require only a minimal amount of lubrication for the sealing.
Pneumatic seals are wear-resistant and using the correct elastomers can also tolerate high-temperature ranges.
The sealing characteristics of pneumatic seals are also secure and have high speeds of operation.
Pneumatic seals are used in a variety of applications, such as marine excavation, vacuuming devices, mining applications, oil field exploration, and automotive parts and tyre production, etc.
Types of Pneumatic Seals
Several types of pneumatic seals can be found in industry, including v-rings, piston seals, wipers, static rings, backup rings, gaskets, o-rings, wear rings and u-rings, to name a few.
O-rings are among the most popular of the seals. It is a circular seal that is shaped like a ring with a round cross-section. It can be likened to the shape of a doughnut. They are relatively easy to use and fit.
A V-ring is very similar to an O-ring, but also has a lip feature that seals tightly at a right angle to the shaft that it is placed onto. These seals are particularly useful for rotary shaft seals.
U-ring seals are also known as symmetrical seals because of their symmetrical shape. The U-shape of the seal locks into place tightly, preventing any leakage and protecting the shaft or machinery.
Wear rings can be used in rod and piston applications and are used to keep the piston centered and stable. The effect is that there will be even pressure and wear.
A backup ring is used to maintain and secure an elastomeric seal. It will make sure that it retains its shape and is fixed securely in position. It is an inflexible ring and is often used in conjunction with O-rings to reduce the extrusion caused by high pressures.
Pneumatic seals have proven very helpful in industry and can be used for a wide variety of applications. For all your pneumatic seal needs, contact Fusion Trading today for a quotation and to find out more information.