Posts Tagged ‘Vanessa’

Valves for Frequent Cycling, High Pressures and Temperatures

Posted in Final Control Element, Oil & Gas on Monday, April 30th, 2018. No comments yet
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David Leavitt described an application of high-cycling valves in a dehydration process at the Offshore Technology Conference (OTC) in Houston, Texas. I recapped his presentation last week in a post, Triple Offset Valves and Molecular Sieve Adsorption Applications. He compared rising stem ball valves and triple offset valves (TOVs) used in these applications. David describe […]

Reliable Switching Valves for Ethylene Production Molecular Sieve Applications

Posted in Chemical, Final Control Element on Friday, November 10th, 2017. No comments yet
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For a valve, zero leakage is defined as no visible leakage when tested at high pressure with water and low pressure with air according to existing international standards. Some of these seat leakage standards for control and isolation valves include ANSI/FCI 70-2/IEC 60534-4, API 598, MSS SP-61 and ISO 5208. ANSI/FCI 70-2 and IEC 60534-4. […]