Check valves are developed for dual-fuel turbines

摘要

Parker Instrumentation has developed a new family of check valves designed for the high temperatures and aggressive media found in turbine installations. The CB Series of check valves are intended to add protection in any system where back flow or pressure might cause a problem or damage, Parker says, such as unidirectional protection elements in the fuel oil, purge air or water lines to the combustion chambers of dual-fuel turbines, Currently, such valves are often replaced or refurbished every few months to combat leakage as a result of coking, and/or the perishing of seals because of the aggressive media and the high temperatures (above 250 degrees F/121℃), the company claims.