Valve World

2018 November – Valve World – “An experimental determination of the gasket-flange surface friction factor, µG “

17 April 2019

In the article for the November issue of Valve World magazine, ESA member Dr.-Ing. Manfred Schaaf, CEO of Messtechnischer Service GmbH, writes about the ESA’s test programme to determine generic data for various types of …

2018 May – Valve World – “Qualifying quarter-turn valves for low emissions”

16 May 2018

In the article for the May issue of Valve World magazine, ESA Technical Director David Edwin Scott compares two test procedures to qualify a quarter-turn valve design for fugitive emissions service; ISO 15848-1 and API …

2018 March – Valve World Publications – “The bolted connection – seal failure analysis and corrective action”

15 March 2018

In the article for the March issue of Valve World magazine, ESA member D. Halkyard, Flexitallic Ltd, writes about possible causes, checks and remedial actions to seal failures and subsequent down times. Further to his …

2018 February – Valve World Publications – “Understanding and preventing causes of down time”

15 February 2018

In the article for the February issue of the Valve World magazine, ESA member D. Halkyard, Flexitallic Ltd, writes about understanding and preventing causes of asset down time. Improved plant reliability is key to optimising …

2017 November – Valve World Publications – “Choosing between the various types of gasket materials”

1 November 2017

In the article for the November issue of the Valve World magazine, ESA member Dick Pronk writes about choosing between the various types of gasket materials. Many variables affect the selection of a gasket for …

2017 May – Valve World Publications – “Gasket factors derived from EN 13555 for use with EN 1591”

1 May 2017

In this article for the May issue of the Valve World magazine, ESA member Janusz Zajaczek presents an overview of gasket factors derived from EN 13555 for use with EN 1591. EN 1591 is used …