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The answer to what constitutes a double block and bleed arrangement depends on whom you ask. Are we talking about a safety concern regarding maintenance in a pressurized pipeline? Or are we talking about how the valve’s seats behave under pressure?

With the new government administration in the United States, strong measures to fight climate change are being implemented throughout different sectors. The Joe Biden administration’s climate change policy will target reducing carbon emissions to achieve net zero greenhouse gas emissions by 2050.

After years of working in the Engineering Department, Richard Hodgson made a career switch to procurement, and became a subject matter expert in his field. Working with a wide range of clients and projects has given him a unique outlook on the industry.

Flow control plays a critical role in allowing a wide variety of manufacturing and process applications (such as oil, gas, water, power, chemical industrial and process control applications) to efficiently and safely operate. Effective flow control can reduce emissions, assure safety and improve efficiency and yield irrespective of application or industry.

Valve Accessories and Controls (VAC) markets quality products for controlling actuators in various flow control markets. VAC’s line of simple yet rugged positioners, mounting kits and accessories are designed with decades of industry experience combined with the commitment to provide customer-driven solutions.

Imagine being on a rollercoaster; a feeling of adrenaline rushes through you as you reach the top of the ride, followed quickly by a gut punch as you drop to the bottom. For the past few decades, individuals in the oil and gas industry have become accustomed to a very similar experience. While the industry has always faced a number of uncertainties, in 2020 alone several economic factors, including the pandemic and presidential election, have impacted the sector’s operations.

Power generation and process industries require large quantities of valves that may vary in size, type, and values to regulate the flow of different media types. While in service, valve seats can be damaged from exposure to the process’ media as they must withstand heat, pressure, and foreign matter. Therefore, regular maintenance is required to prevent costly downtime due to seat damage.

As depth increases, the face of every man slowly turns cold. As they watch the hand on the gauge advance into the feared red zone, a single thought roams their heads: will it hold? During the terrible wait, some start to hear noises: leaks, gaskets blowing, and creaking sounds. This scene may look straight out of an old submarine movie, but it might as well be about hyperbaric testing a subsea valve.

Valves manufactured for subsea applications are held to an extremely high standard. These valves must use specific high-quality materials and be able to withstand corrosive agents and high pressures.

As a Senior Integrity and Corrosion Engineer, Leonardo Araya has handled a wide variety of issues surrounding pipelines, valves and tanks. Valve World Americas Journal was excited to speak with Araya about the several methodologies that are used to assess a pipeline and explore a few case studies involving valves and the mediation of corrosion in carbon steel, stainless steel, and titanium tanks.