The Industrial seal market is by far the broadest and most encompassing of all seal markets. This industry uses seals that need to function with every fluid imaginable, temperature ranges from absolute zero to over 1000 °F, and pressures exceeding 100k PSI.
Industrial seals also include rotary seals that can see a vacuum to PV’s (pressure-velocity) that can often exceed 500K-PV.
Solving our industrial seal customers’ problems requires our seal designer to understand how the equipment will operate.
OEMs worldwide know Clipper Oil Seals for their ability to provide superior performance in the most demanding and critical applications. A one-piece molded construction and the ability to provide application-specific designs, if needed, are just a few of the reasons Clipper seals are specified for critical applications. These applications include as aircraft landing gear, military vehicles, underground mining equipment and roll chocks used in the steel industry.
Clipper seals are available for shaft diameters from 0.250" (6.35 mm) to over 65" (1651 mm) in both standard and high-performance elastomer compounds. With over 10,000 tooled sizes, Clipper seals are readily available for most applications in either a solid or split design.
The most unique feature of the Clipper oil seal is nonmetallic construction. The metal case that is common with traditional lip seals is replaced with an aramid fiber and elastomer composite material.
A wide range of lip profiles are available
A metal seal is used when the application conditions are outside the specification limits of a polymer; extreme heat, extreme cold, extreme pressure, or a vacuum. With significant resilience coupled with the right material selection/coating for an application, a metal seal can be a very durable seal performing dependably year after year.
O-FLEX™ metal O-rings are designed to provide a sealing option for high-pressure/high-temperature applications that require minimal spring back. The O-FLEX™ metal O-ring is made from high strength metal tubing that is coiled, cut and welded to size. It is available in standard cross-section increments of 1/32”. The O-FLEX™ metal O-ring seating load can be adjusted to the application by varying the cross-section and tubing
The Backup ring likely found its roots in the use of leather packings, where leather was used as the sealing device in glands prior to the use of O-Rings.
The O-ring provided a much better seal compared to leather. However, the leather often filled the extrusion gap allowing for larger gaps.
The persistent problem that engineers faced was how to take an O-ring that operated optimally in close extrusion gaps, and extend its service with widening extrusion gaps.
The answer was the Backup ring.
Article re-posted with permission from Parker Hannifin Sealing & Shielding Team.
Original content can be found on Parker’s Blog.
(1) Ease of component assembly (2) Serviceability (3) Transit Issues
For example, seal retention is important when you have complex groove paths where your groove wanders around bolts or ports. It is also valuable in improving operator ergonomics by reducing installation strain or fatigue in high volume applications. Additionally, seal retention improves serviceability by eliminating the need for liquid sealants which can be difficult to clean. Last but not least, seal retention
The GYLON® Style 3522 material is made of 100% pure PTFE with no fillers or additives, making the material ideal for the most demanding, high purity requirements. Industries such as food, pharmaceutical, semi-conductor, recognize the uniformity of GYLON® 3522 that makes it an ideal gasket choice for those critical applications that cannot risk process contamination or premature failure.
Food and Beverage
Large Global Valve Company
SIP (steam in place) at temperatures of 300°F (148°C) and 145 psi, in contact with cleaning agents, steam and the primary media which is dairy related products.
The environmental demands placed on the hydraulic systems in large, heavy equipment can be extreme. Pressure, abrasive fluids, extreme temperatures and dirt can all impact the reliability and performance of the seals used to protect their mechanics. Fortunately for manufacturers producing construction, agricultural and mining machinery – among other, heavy-duty industrial applications – Freudenberg Sealing Technologies’ proprietary 94 AU30000 polyurethane provides an outstanding solution.
The success distributors have witnessed with 94 AU30000 seals is attributed to several key benefits. Sealing solutions made from the AU30000 material are not only resistant to water and synthetic hydraulic fluids but can handle major temperature and pressure fluctuations better than any other existing polyurethane on the market. They also offer very high extrusion resistance, allowing them to last longer under more challenging applications than other solutions
Elastomers are a high molecular weight polymer that exhibits little plastic flow, and has a rapid recovery from an extending or compressing force. Elastomers are produced naturally as gum rubber on commercial rubber plantations or manufactured synthetically. Today, more than 32 synthetic rubbers are known.
In Part 2 of our webinar series, Benjamin Mell, Regional Sales Manager at Gallagher Fluid Seals will elaborate on the most common types of elastomers used in o-ring applications. He will discuss their performance characteristics, application details, and pros vs. cons.
Forced cooling may be used to stabilise wine and prevent the future formation of tartrate crystals. The bottler forces tartrate crystals to form which are removed through a number of steps including filtration. This eliminates the need for wine-lovers to decant or filter their wine when drinking it.
“The temperature fluctuations caused the chrome bushings to burst and the seals to wear.” With the bushings and seals failing prematurely, this would cause unacceptable equipment downtime.
“The bushings were replaced with Vesconite Hilube and the seals with silicone and the result was an up to three times longer lifespan,” states Brits.