ISO 15848-1:2015, “Industrial valves – Measurement, test and qualification procedures for fugitive emissions” is the latest in a growing list of performance benchmarks and certifications to be earned by the innovative Dilating Disk™. ISO 15848-1 addresses both isolation valves and control valves, and specifies the testing procedures for the evaluation of the external leakage of volatile air pollutants, from the valve stem shaft seals and valve body joints.
Under this specific standard, a control valve must be cycled from 40% open to 60% open, with a minimum of 20,000 cycles. To date, the Dilating Disk™ has achieved a proven tightness of Class AM, emitting less than 50 parts per million by volume (ppmv) of methane. This tightness class is the most stringent fugitive emissions measurement in the world, and serves as yet another major validation of the Dilating Disk™ design.
“Clarke Valve sits at the intersection of reducing the cost of flow control and the fight to eliminate fugitive emissions,” said Kyle Daniels, President and CEO. “We are proud to be an OGCI Climate Investments portfolio company, and we are working non-stop with OGCI partners to implement this emissions-reduction technology in the field as quickly as possible.”
Yarmouth Research and Technology, LLC, the world leader in valve testing services since 1992, is Clarke Valve’s chosen testing partner for ISO 15848-1 and other critical standards. Yarmouth Research previously conducted the API 641 certification of the Dilating Disk™, and will oversee continued testing of the Dilating Disk™ under ISO 15848-1 and other standards.
“Studies estimate that a single valve using legacy designs and technology could emit as much as 10 tons of carbon dioxide equivalent each year,” Daniels remarked. “Testing has shown that the Dilating Disk™ reduces this figure by at least 95% per valve, and we are focused on driving the adoption of this technology across the spectrum of industries that have the potential to emit harmful pollutants into the atmosphere.”
Founded in 2011, Clarke Valve provides high quality, API 641 and ISO 15848-1 certified industrial control valves to organizations worldwide. Using aerospace design principles, Clarke developed the Dilating Disk™ Valve, formerly known as the Shutter Valve™, a revolutionary control valve designed to be reliable and efficient while virtually eliminating ...