Marking a milestone in the history of pressure relief valves (PRV) and overpressure protection, Emerson celebrated July 17 the 150th anniversary of its Crosby PRVs. Crosby devices are field-proven and engineered to meet the latest regulatory standards.
For example, Crosby Balanced Diaphragm technology debuted in 2022, and eliminates bellows in PRVs, ensuring reliable, balanced operation against backpressure. This innovation reduces maintenance costs, improves performance, and enhances safety with a robust design. Also in 2022, Crosby valves gained Bellows Leak Detection that provides instant notification of ruptures. This enables prompt maintenance, reduces fugitive emissions, and provides event logging for intelligent, root-cause failure analyses.
Crosby’s present overpressure protection products include:
- J-Series that’s used in various applications, including air, gas, steam, vapor, liquid and two-phase media.
- Omni-Trim that also provides thermal relief in air, gas, vapor, liquid, and steam applications.
- H-Series PRV that’s used in power industry, steam-safety applications, such as economizers, steam drums, superheaters and reheaters. Its limits were extended this year to more than 7,250 psi/500 bar and 1,200 °F/648 °C.
“Emerson continuously enhances its overpressure products,” said Judson Duncan, president of Emerson’s pressure management business. “With a steadfast dedication to regulatory compliance, safety, and customer satisfaction, Crosby is positioned to lead a safer, more sustainable industry for the next 150 years.”
