Today’s guest blogger Tarmo Laitinen is discussing the growing challenges of emission control, what kind of standard compliance is required and how does a valve supplier answer to these demands:
Oil and gas processing facilities are facing growing challenges to meet environmental, health and safety requirements nowadays set by authorities. Especially requirements for the process valves’ fugitive emission capabilities have enormously grown during the last two decades.
First air pollution related laws were set because of faced health issues on 19th century. The limitations have started to concern more fugitive emission sources meaning industrial valves as well. It has been shown in many studies that the valves are a major source of fugitive emissions from an industrial plant. All process valve related FE standards aim for the same purpose: to comply the applicable local fugitive emission legislation and to reduce fugitive emissions from the valves to prevent environmental damages.
Fugitive emission standards
It requires expertise to understand the different requirements of the FE standards. Direct comparison of different fugitive emission standards is not that straightforward. The fugitive emission standards can be estimated as a more or less strict standard for the valves based on the analysis of FE standards and extensive laboratory based research knowledge. That information can be transferred to a valuable end user benefit.
There are several common valve related fugitive emission standards like normative standards (e.g API624, FCI-91-1), international standards (e.g ISO 15848), end user specs (e.g Shell SPE 77/312) or some of them are set by a country’s legislation like (e.g EPA 40 Parts 60/63, TA-Luft).
The common leakage standards can be summarized so that out of the current valve related fugitive emission standards ISO 15848 offers the most comprehensive leakage level classification and testing procedures to evaluate valves’ FE performance in different, simulated operating conditions. That allows an easy comparison of valves’ fugitive emission performance.
Fugitive emission valve solutions and benefits for the end users