Archive for August 2016
Q&A – What is the application of a control valve? And what are the main types and parts?
The purpose of a “Control” valve is to control. It might control flow, level, pressure or temperature depending on the purpose of loop it is installed in. The valve itself is normally a “globe” type valve body but with an air or electro-pneumatic operator. This operator is controlled through a loop that includes a primary…
Read MoreQ&A – For column overhead line, why is the first support always a Rest support?
The simple answer is “That’s all that is needed”. You have to understand the full picture of the top of the vessel along with the configuration of the “Overhead Line”. a) If the “Overhead Line” exits the vessel from a side nozzle and turns down with an elbow then you want a solid (Rest) support…
Read MoreQ&A – What is a Back Pressure Turbine and what is a Condensing Turbine?
Back Pressure Turbines: a type of steam turbine that is used in connection with industrial processes where there is a need for low or medium pressure steam. The high pressure steam enters the back pressure steam turbine and while the steam expands – part of its thermal energy is converted into mechanical energy. The mechanical…
Read MoreQ&A – What you need to become a more valuable graduate Engineer
Besides the straight curriculum leading to your engineering degree here are some things every new Engineer (Piping, Mechanical, Electrical, Civil, Structural or other) needs to know after graduation.
Read MoreQ&A – Differences between Basic Engineering and Detailed Engineering
“Basic Engineering”: PFDs (Preliminary because they are based on unproven data and have not been Approved by the Client) Preliminary P&IDs (Preliminary because they are based on unproven data and have not been Approved by the Client) Project Planning Preliminary Plot Plan (Preliminary because none of the equipment has been purchased so you do not…
Read MoreWhen do we use slip-on flange, a weld neck flange or a lap joint flange?
The answer to this question is mixed. First, the piping material engineer should have made it very clear which type of flanges are included in (and/or allowed in) each line class specification.
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