COG’s new high performance material Vi 250 seals air at temperatures of up to 250 °C, even over the long term. Furthermore, the all-round compound also impresses thanks to its excellent media resistance, and is also resistant to chemicals such as for example all types of hydrocarbons. FKM possesses extraordinarily good resistance to numerous … [Read more...] about FKM special compound seal for use at high temperatures
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Professional O-ring calculator launched at Hannover Messe
At the start of the Hannover Messe trade fair, seal expert C. Otto Gehrckens made its O-ring calculator available on the company’s website. The tool is especially aimed at engineers who want to quickly and easily check their designs, or determine the correct parameters for selecting O-rings. The O-ring pros at COG made their primary focus a clear … [Read more...] about Professional O-ring calculator launched at Hannover Messe
High-tech compounds against explosive decompression
Sealing compounds used in the applications above often create a barrier against gaseous media if highly pressurized gas falls to a very low-pressure level within a very short period of time. The result of this process is often a damage of the sealing. The elastomer material is either torn in various places or blistering on the surface. This process … [Read more...] about High-tech compounds against explosive decompression
Custom-made seals for the pharmaceutical industry
The EPDM high-performance material for the medical technology, pharmaceutical industry and biotechnology The special material in the COG HygienicSeal series has been granted the most important approvals for application in these highly demanding industries. As well as the harmlessness test according to FDA 21. CFR 177.2600, AP 306 is approved … [Read more...] about Custom-made seals for the pharmaceutical industry
COG FKM seal material Vi 840
One of the central demands from the valve sector and gas industry has been for a seal material that has suitable low-temperature flexibility, and which conforms to the DIN EN 14141 standard. Up until now, there simply hasn’t been a suitable FKM seal material available. But now, the independent seal manufacturer COG has developed a special FKM … [Read more...] about COG FKM seal material Vi 840
First aid for technicians: Professional O-ring tool kit from COG
Technical users know the problem all too well: Installing O-rings in cramped installation spaces without damaging them or the removal of stuck O-rings from grooves without causing damage to the machine is often a tedious and above all difficult affair. Often, screwdrivers or simple plastic tools are used to perform the task. These tools are often … [Read more...] about First aid for technicians: Professional O-ring tool kit from COG
C. Otto Gehrckens hosts O-ring Academy seminars
C. Otto Gehrckens GmbH & Co. KG (COG), hosts its own O-ring Academy seminars for designers, engineers and users of fluid power seals. First up is the compact seminar, "O-rings explained in detail" on March 30 at the company's headquarters in Pinneberg, Germany (near Hamburg). In addition to learning how to properly use O-rings, and … [Read more...] about C. Otto Gehrckens hosts O-ring Academy seminars
New product range of high-performance TPU seals
With COG VarioPur, the independent seal manufacturer C. Otto Gehrckens presents a new product range in the premium segment. The three high-performance materials in the VarioPur series are based on thermoplastic polyurethanes (TPU/AU). Both the abrasion and the extrusion resistance are at least five times higher than those of the traditional … [Read more...] about New product range of high-performance TPU seals
