The Society of International Gas Tanker and Terminal Operators (SIGTTO) has published the updated version of the Recommendations for Valves on Liquefied Gas Carriers.
Introduction
This document presents an overview of the existing valve design standards and summarizes the essential requirements.
It offers recommendations aimed at addressing specific issues to enhance safety and promote environmental protection.
Moreover, this new document consolidates and replaces two previous editions, namely "The Selection and Testing of Valves for LNG Applications" (2008) and "The Selection and Testing of Valves for LPG Applications" (2012).
This update takes advantage of advancements in safety philosophy, technological improvements, and lessons learned.
Scope
These recommendations pertain to carriers transporting liquefied petroleum gas (LPG) and liquefied natural gas (LNG).
In this document, LPG refers to liquefied gas cargoes carried within the temperature range of 0°C to -104°C, including substances like ammonia and ethane.
The term LNG is used for cargoes transported at an approximate temperature of -162°C.
While the guidance in this document is useful for cargoes that might react with valve components, additional considerations may be necessary due to the nature of the product.
Intended Audience
This document targets valve manufacturers, shipyards, and ship owners.
It assumes that the reader possesses a certain level of familiarity with the design and operation of liquefied gas carriers.
The technical details provided are not simplified or explained at an introductory level.
These updated recommendations (2nd Edition) were published on 1 January 2023.
For more information, please see the document below (available only to subscribers):
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