Operators are under increasing focus on reducing fugitive emissions for both onshore and offshore assets, to reduce harmful emission to achieve their core imperatives of safe operations and minimum downtime.
Fugitive emissions is a hot topic that will only become more critical in the environmentally conscious world we now live in. Fugitive emissions are a leak of gas or vapour, normally due to poor maintenance or packing sets being utilised without a true understanding of the application, leading to potential product performance issues and a variety of costly, detrimental failures.
Severn have been investing a significant amount of R&D to address fugitive emissions in Control valves and their application requirements. By utilising a range of materials from filled graphite through to custom PTFE based compounds, Severn have, coupled with novel packing designs, been able to achieve tighter leakage rates than had previously achieved with standard packing sets. We have reduced control valve emission leaks to a minimum across our whole product range, without impacting on product performance and reliability.
The performance of valves with fugitive emission sealing systems are a critical consideration for the operator. Traditionally compression packings were simply tightened to ensure the seals were effective. This can increase friction reducing valve performance and controllability and leading to potential total valve failure.
Thanks to extensive testing carried out as part of Severn’s ongoing product research and development, we now have packing sets that achieve classes ISO 15848-1 A, B & C with valve processes from -196°C to +425°C and at pressures up to 10000PSI on both linear and rotary control valves.
Courtesy of Severn.