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Dear Forum Members, I have an enquiry for a API Water Separator. As per the Specification it shall conform to the following: - API 421 - API Manual on Disposal of Refinery Wastes - Volume on Liquid Waste - Chapter 5 (Oil Water Process Design) & Chapter 6 (Construction Details of Gravity Type...

I have a piping system which is about 20 m long with 4 supports (either rest type or rest+guide type; no axial stops) and the system is terminating with a flange (2 meters after the last support). Infact, this flange is an interface between my project and future project. We do not have any clue...

Thanks gerhardl, I understand that point. Is there a specific reply on the question on back seat ?

Hi Can someone please guide me how to specify integral/ renewable seat rings in Gate and Globe valves. When should we specify integral and when renewable? Is there any code that specifies this requirement. Also, please advise whether all gate/ globe valves will have a back seat. if yes, is...

Hello everybody, I got below query and I need some expert advise. Thanks in advance for your help. "Line pipes (available surplus) is with coal tar epoxy coating which is suitable for underground installation. The same pipes needs to be installed above ground suitable. Aboveground installation...

since our liquid ammonia will have water content and it will not be anymore anhydrous. Is ASME B31.4 still applicable?

Thanks All for the valuable opinions. Rounding up on the discussions we have had so far, Conventional piping material LTCS A333 shall be used for designing pipelines. However, as for relevant wall thickness calculations design code ASME B31.4 will be used. Additional recommendation from ISO...

We are currently designing a liquid Ammonia Pipeline System. ASME B31.4 suggests that it is applicable only to anhydrous Ammonia. Is the design code applicable to liquid ammonia as well? If not what is the alternative. Is there anything in particular that we should take care of while designing...

I found what I was looking for. Check this: DEP 74.00.10.10 Max Chloride content shall be 250 ppm.

Dear Friends, does anyone of you know what is the maximum chloride content for test water for Carbon and low alloy steel piping? On the web I found one paper which states 30 ppm, but I would prefer code/standard reference if possible. Thank you

Hello everybody, I am going through the SNFAIL example which was pubblished in COADE Mechanical Engineering News in June '94. Here below the link: http://www.coade.com/Uploads/mechanical-engineering-news/jun94.pdf Basically is everything very clear and very logical. There are only two points...

Hello everybody, I am doing dynamic stress analysis of 32" Diesel pipeline. Due to the closure of a ball valve, a fluid hammer travelling backwards is generated. The pipe has many vertical loops and horizontal direction changes. Now, my question is: what happen to the pressure wave when it...