08222017Tue
Last updateTue, 22 Aug 2017 6pm

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DBB and DIB: Which is which?

The term “double block-and-bleed (DBB)” carries a lot of misconception when it’s used to describe valve functionality. Every valve buyer and manufacturer seems to have a different idea of what the term means for valve selection, which can result in misguided specifications or the wrong choice of valve type. In the oil and gas industry, some of this confusion stems from the fact there are two credible sources that define the term differently. Another point of confusion comes because many people using the term double block-and-bleed really want a valve with ­double isolation-and-bleed (DIB) ­capabilities. ­However, the differences in definitions and terminologies involved are important when it comes to determining which valve capability is needed for what type of system.


Creating a Standard to Compare Control Valve Products

14 wnt standardsEach enthusiastic young engineer that comes into the workplace wants to reinvent the world. However, when that factor is combined with the reality that the numbers of regional sales offices for valves is growing and growing, the amount of combinations of valves that can be bought and used becomes endless.

 

Wireless Solutions Keep Close Watch on Valves

14 wnt wireless introThe number of valves and valve types that go into modern process plants today to precisely control operations is huge. Because of the critical role they can play, the increasing numbers mean a corresponding increased need to monitor how well these valves operate. Yet in too many cases, this does not occur. The lack of information coming from a large proportion of today’s valves can lead to poor performance and inefficient operation. One of the tools at our disposal to achieve effective valve monitoring is ­wireless technology.

Nuggets of Knowledge: Industry Veterans Share What They’ve Learned

No matter what industry or line of business people are in, or how long they have been on the job, they never stop learning. Those lessons come both from new education and the school of hard knocks. In the valve industry, young professionals have the benefit of being able to learn from many veterans. The industry has a long history and is well-established. At the same time, its veterans are looking down the road and realizing young blood is needed to continue to make the valve and actuator industry a strong one.

Reducing Compression Packing Friction in Valves

Compression packing is found in applications ranging from transmission of natural gas and water to caustics and high-temperature steam. When used properly, it is a cost-effective, high-performance means of sealing. Unfortunately, compression packing creates friction, which can cause major issues in certain applications. Knowing how to reduce that friction can be critical in minimizing those issues.

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