MCE ValvTechnologies Hydrogen Process Case Study Using Metal-Seated, Zero-Leakage Ball Valves



INDUSTRY: Downstream

PLANT TYPE: Chemical   

APPLICATION: Hydrogen Isolation

PRODUCT: ValvTechnologies V1-1 Ball Valves     

SUCCESS SUMMARY: Our customer had a long- standing leakage history while using “Y” pattern globe valves for isolation in hydrogen service. After re-viewing the benefits of the ValvTechnologies’ zero-leakage design, the customer changed their specification to ValvTechnologies’ zero-leakage, metal seated ball valves.

CHALLENGE: Achieving tight shut off on high-pressure hydrogen (1,160 psig) service in a single direction, much less on a bi-directional valve, is very difficult for plants to realize. However, ValvTechnologies were able to custom engineer a perfect solution to not only meet but exceed the customers’ requirements and expectations.

SOLUTION: ValvTechnologies supplied V1-1 zero-leakage, A105 seat supported valves with Colmonoy® 69 coating on the integral seat and an Inconel® 718 ball also with Colmonoy® 69. The valves were tested to zero-leakage in the primary direction and class V in the reverse direction.

These were the first valves installed in high-pressure hydrogen service at this customer’s plant.

BENEFIT: The customer will recognize repeatable, long-term, reliable tight shut off, allowing for a longer run time with significantly reduced maintenance and lower total cost-of-ownership.

FUTURE PROJECTS: ValvTechnologies will replace the existing installed base of “Y” pattern globe valves throughout the plant with V1-1 zero-leakage ball valves.

MCE Group Plc primarily offer valve maintenance and overhaul services from our workshops based in Stockton-on-Tees and Warrington, maintaining Control, Relief and Isolation Valves including actuation.

We are also stockists of the above referenced ValvTechnologies range of zero-leakage isolation valves.

For more information, contact Selwyn Jones (Business Development Manager) on 07718 560214, or call the MCE Group Plc offices on Stockton-on-Tees 01642 882211 or Warrington 01925 202 399. 


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