11132018Tue
Last updateMon, 12 Nov 2018 5pm

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Technical

Is Valve Live Loading an Option?

Is Valve Live Loading an Option2Valves leak. There’s no getting around it. In fact, industry sealing experts have cited that 60% of all fugitive emissions are from valve leaks. In addition, it is estimated that 75% of these valves leak at the stem. Improvements in packing materials and design have led to significant reductions in emissions in all industries. However, any stem seal needs stress to be effective, and packing stress fails over time for a variety of reasons.


Managing Control Valve Reliability in the Arctic

“A sow and polar bear cub are walking across the east side of the pad. All personnel are advised to stay clear of that area,” Billy announced over the radio. Just a few moments later, the radio crackled again as he advised, “Current wind chill is minus 68 degrees, so everyone working outside must follow the work restrictions provided in your Alaska Safety Handbook.”

Adopting the IIoT: Are Results Matching the Hype?

Many valve, actuator and control manufacturers have jumped right in and taken advantage of the opportunities the Industrial Internet of Things (IIoT) have brought to process control. By providing products that are capable of remote access, they are offering end users like refineries, petrochemical plants and power producers benefits like data analytics to lower costs and improve maintenance scheduling, lower emissions and lower total cost of ownership of flow control products.

But other CEOs and managers are taking a wait-and see attitude, or are in the early stages of making products capable of full connectivity. Part of the hesitation stems from cybersecurity concerns; other concerns include those from end users who may have trouble justifying the cost of installing new systems, implementing the protocols and training personnel.

Oxygen Cleaning: A Validated Process is Critical for Safety

From time to time, we re-publish well-received or particularly valuable articles that have previously run on VALVEMagazine.com so that those who might have missed them will be able to catch up on the best of the best. This article, “Oxygen Cleaning: A Validated Process is Critical for Safety” initially ran on April 20, 2015.


Industrial oxygen is used for many purposes: in a basic oxygen furnace for making steel, water pollution countermeasures, including sewage treatment, habitability and superfund site rehabilitation, and chemical processes such as production of vinyl chloride, nitric acid, epoxyethane and hydrogen peroxide. It is also used for medical treatment, life support in harsh environments and industrial gasses for welding and other processes.

The production of oxygen has risen from approximatey 470 billion cubic feet in 1991 to over 1.5 trillion cubic feet in the U.S. and more than 4 trillion cubic feet globally in 2014.

Where Valves Are Used: Everywhere, Part 2

The valve industry is truly broad and diverse; valves are found in our homes, our offices, under our streets and in all our factories and plants. VALVE Magazine’s fall print magazine covered some of those industries, including water works and wastewater, the power industry, oil and gas production, offshore industries, pipelines, refineries, chemical processing, liquified natural gas and commercial buildings. This article continues that coverage.

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