Field-proven in extreme gas and liquid handling situations, a number of variations of Turcon® Variseal® spring-energized seals are especially suited to the most demanding of semiconductor sealing applications, including high vacuum and corrosive environments.
Turcon® Variseal® NW
The Turcon® case of this flange seal encompasses the energizing spring in such a way that there can be no possible contact between the spring or spring cavity and system media. It is ideal for semiconductor applications where it can successfully operate in a vacuum and is proven in fluorine gas.
Turcon® Variseal® PS™
This high-performance seal has been designed with a Turcon® PTFE based sealing body and encompasses a polymeric spring. Using the system media pressure, it is engineered to energize the seal precisely at low pressures, while maintaining high-pressure sealing integrity. The Turcon® Variseal® PS™ has ultra-low leach out impurities as per SEMI standard F57-0301 and minimal outgassing, making it ideal for use in semiconductor wet processing.
Turcon® Variseal® Ultra-Clean™
This seal offers the ultimate in cleanliness, making it ideal for use in processing equipment where maintaining an ultra-clean system is top priority. In the unique design of Turcon® Variseal® Ultra-Clean™, the spring required to activate the seal is fully enclosed within a Turcon® case. This means metal extractables are totally excluded, an important factor in semiconductor fabrication where the minutest contamination can destroy the effectiveness of wafers.