Valtek® Valdisk™ high performance butterfly valve completes million-cycle test

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Flowserve Corporation has revealed that its Valtek® Valdisk™ high-performance butterfly valve is licensor-approved for use in pressure swing adsorption (PSA) applications.
The valve has successfully completed a rigorous one million-cycle endurance test.
It is well-suited for applications in chemical plants, oil refineries and other facilities that require control valves that maintain tight shutoff amidst high cycles and bi-directional flows.
The Valtek Valdisk butterfly valve joins the Valtek Mark One™ globe valve and Logix™ 3800 digital positioner from Flowserve, which are already licensor-approved for PSA applications.
Valtek control valves and Logix automation extend equipment life and maintain purity in PSA skids.
The endurance test simulates the rigorous operating conditions found in high-cycle PSA processes. Conducted in accordance with licensor criteria, it was cycled with upstream pressures of 350 psi and measured seat and stem leakage over one million open/close cycles.
The valve followed a defined control ramp to demonstrate sensitivity, repeatability and linearity.
“Flowserve designed the Valtek Valdisk to ensure process variables remain close to the desired setpoints and improve process productivity, plant uptime and employee safety. Its performance and reliability in PSA applications have been field-proven for over 30 years and are now validated by lab testing,” said Cris Sidwell, global product leader at Flowserve.
“Successfully completing a million-cycle test demonstrates Flowserve’s commitment to helping customers extend service life and lower total cost of ownership.”

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