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News

GT, New explosive decompression resistant line with 936 Fluorocarbon

Greene Tweed & Co Benelux BV : 23 May, 2006  (New Product)
Greene, Tweed has developed a new explosive decompression resistant fluorocarbon elastomer with compression set less than half that of competitive materials and low-temperature continuous-use performance 45
In addition to improved physical properties, this high-performance elastomer, FKM 936, offers broader chemical compatibility while maintaining its properties in downhole environments such as sour gas and methanol. FKM 936 increases the reliability of equipment by preventing failures due to unexpected pressure drops. Greene, Tweed developed FKM 936 based on customer requests, thus extending its line of ED resistant grades. Other products in the line include Fluoraz 799, a TFE/P elastomer (Tetrafluoroethelyne Propelyne Copolymer), compound 926, a fluorocarbon elastomer and Chemraz 526, a perfluoroelastomer.

Ron Campbell, Greene, Tweed's chief polymer scientist, notes, 'FKM 936 provides a much needed combination of ED resistance with outstanding chemical and physical properties, especially compression set, to enable customers to expand their operating capability and improve the reliability of their exploration and production equipment.'

Explosive decompression often occurs when high-pressure gas molecules migrate into an elastomer at a compressed state. When the pressure surrounding the elastomer is released suddenly, the compressed gas inside the elastomer tries to expand and exit the elastomer. This gas expansion can cause seal damage, such as tears, blisters and cracks in materials not suited for these conditions. Greene, Tweed's FKM 936 provides superior ED resistant properties delivering significant benefits to users in the oil exploration and production industry. ED resistant FKM 936 improves the reliability of surface, downhole and subsea equipment. Greene, Tweed's FKM 936 is available as O-rings, GT rings and VEE-rings and in other custom-molded shapes. ED test results are available for several various test conditions, including NACE and Shell specifications.

Greene, Tweed leverages expertise in a variety of markets and products to give customers the most innovative solutions to meet performance challenges and reduce total cost of operation. With fully qualified engineering, sales and support personnel located throughout the Americas, Europe and Asia, Greene, Tweed delivers solutions to individual customer applications on a global scope. Greene, Tweed products are sold and distributed worldwide. For additional information, contact Greene, Tweed at +1.281.765.4500.
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