Emerson Process Management has announced that it will now offer Valve Seat Leak Detection Services which includes solutions for valve-seat leak detection, open inspection, diagnostics, OEM-certified and replacement of its Fisher brand control valves.
In a prepared statement, technology services director for Emerson Process Management’s Instrument & Valve Services in Marshalltown, Iowa, Tucker Martin said: “Now Emerson has the complete valve diagnostics toolbox, including the ability to check pressurized valves, which are required to remain closed during inspection. We can provide our customers estimated valve seat leakage to aid them in making more informed decisions for prioritizing maintenance, repair or replacement of valves during turnaround planning.”
Instrument & Valve Services technicians from Emerson measure internal valve seat leaks using transducers to detect the acoustic emission of a leak during pre-turnaround walk-downs and for post-outage verification. Emerson says that the method allows differentiation between leakage signs and high ambient background noise, which increases leak rate quantification accuracy.
Mistras Group Inc., a researcher and manufacturer of acoustic emission technologies is providing equipment for the service.