Construction of modularized plant system has become a popular choice of design in heavy process industries like the Oil/Gas and Petrochemical Sector. Modularization is where equipment, vessels, piping, valves, instrumentation and electrical/controls are mounted on a compact steel framework, commonly called “skids”.
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Valve customization is adapting to customers’ needs in regards to changing body materials, port connections, testing requirements, and various combinations of different assembly types. Being open to different design ideas, and accepting the challenge the customer set forth. As a valve manufacturer we strive to impress our customers with our many years of experience in building valves. Every day we continue to receive new design request from our customers for complex requirements. Since we have over 140 years in customizing valves experience, our customer can trust that we are experts in the industry.
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In the Oil/Gas industry, although it has become very common, the use of a compact Double Block & Bleed (DBB) valve for pressure energy isolation is still not applied or adopted across the board. I have experienced a few times wherein the use of a DBB valve for process isolation is more of an option rather than a design requirement.
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Double block and bleed valve systems are conventional installations for most End-Users in the Oil and Gas industry. Conventional installations of DBB valve systems have become a normal practice and can even be found on offshore platforms.
The installation of DBB valve systems is a time consuming process that can negatively impact employees and their work production. The normal process of this type is baded on:
Using two 6” 1500 class ball valve with all the additional materials,
Long and comlex installation process (up to a 41 steps)
Huge amount of material (weight of 2,645 lb(s) = 1200 kg
It is very easy to upgrade your existing Single Isolate Ball Valve installation. Simply use a DBB with Face-to-Face and End-to-End dimensions acc. to ASME B16.10.
Use a DBB Dual Ball Design improve Safety and Process Reliability. Here is a simple infographic to illustrate the interchangeability using ASME B16.10 dimensions:
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Traditional installations of Double Block & Bleed (DBB) valve systems at plants are very time consuming and an expensive practice. A traditional system consists of two single ball valves, a needle valve, various connectors, adaptors and flanges.
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Tracking and limiting Fugitive Emissions has moved into the focus of many countries around the world. Stringent legal requirements force the industry to rethink and use emission-reducing equipment. This sounds very simple, but from my experience there is still misconception when it comes to this subject.
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Having worked on many projects in the past, it seemed that many piping engineers tend to stereotype the term “severe service” on their valve requirements.
In a given process or system, only few can be considered as such, but they are the ones that pose the greatest design challenge. Each type of valve (and there are many of them) has several parameters to consider.
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Ever since 1922, ASME (American Society of Mechanical Engineers) has been defining pipeline safety upon demand from both industry and government. One of their standards has to do with face-to-face as well as end-to-end dimensions of straightway valves, centre-to-face and centre-to-end dimensions of angle valves. In this informative post, our primary focus will be on ASME B16.10 industrial valves.
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During the last years I recognized, that people sometimes talk about “Fire Safe by Design“. When I was coming across this the first time, I wondered about the meaning of this in detail – Just using metal to metal sealing, graphite sealing or graphite packing?
“Fire safe by Design” is widely used, but to my knowledge there is no common or firm description or rules limiting or qualifying the use of this concept.
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