One of the many demanding factors for valves being used in the oil and gas industry is that a seal material has to have suitable low temperature flexibility as well as conforming to the DIN EN 14141 standard. C. Otto Gehrckens (COG), the independent seal manufacturer, has now developed a FKM compound that fulfills these demands from the oil and gas sector.
The Vi 840 FKM compound has been successfully tested to DVGW DIN EN 682 (type GBL). It also has low temperature flexibility of more than -40°C. With a TR-10 value of -40.1°C, this high-tech compound is suitable for use at temperatures of right down to -46°C, and therefore fulfils the important API 6A and 6D standards.