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hi all, I am doing a stress analysis for pump suction piping. The pipe is connected directly to an expansion joint. Then there is an elbow next to the expansion joint. A support is installed at the piping right after the elbow. I would like add an directional anchor at the support to limit the...

Does any know if there is any guide for valve packing selection based on service and temperature? Thanks,

Hi all, Is there a standard to decide where to add guides on piping? Thanks

Hi there, Is it a good design to weld pipe shoe to a tee? We have a piping design that has a pipe shoe welded to a tee. I personally don't like it since there is turbulence there. But our designer doesn't want to relocate it since it will involve the redesign of structure. Does anybody have...

Hi, I try to determine what would be the seat material for ANSI 1500# and 2500# ball valves. I found some companies use nylon seats, some companies use RTFE seats. Which one is the better? What are the differences between them? Thanks,

I was told there was a mininum volume required for vessel to be registered as a pressure vessel. But I cannot find it in ASME code. Can anybody tell me what the volume is? Where can I find it? Thanks,

What seat material can be used for cryogenic ball valve in sour service? The temperature range is -198C-32C. Pressure ratings are 150#, 300# ,600# and 900# line. Thanks,

Hi, What are the requirements for the inlet water of a gas fired steam boiler? Since impurities in water cannot be 100% removed, how to solve the scaling problem in the boiler? Thanks,

What is the maximum amount of Nitrogen and Aluminum in SA 105N? ASME specifications did not give the requirements for these two elements. But the mill certification I received from manufacturer indicated the amount of 0.012% of nitrogen and 0.028& of aluminum in SA 105N. Is this acceptable...

Hi, I am looking to purchase a trunnion ball valve for sour gas service at 38C, 285 psig. What would be the best seal material? The manufacturer has a list of choices: Viton HNBR EPDM Aflas Thanks,

I am looking for a fule gas fired steam boiler. Does anybody know which manufacturers can supply that? Thanks,

We need to install a choke valve in line. It is estimated that the temperature after the choke valve is -80C. The piping material is 2" XXS, SA333 Gr6. Considering the pressure of 5000KPa after choke valve and applying Firgure USC66.1 from ASME SEC VIII. The temperature reduction is 80C. So it...

I am doing a piping design. One of the branchs has to come off from the expansion loop of the header. Does anybody know if it is good to have a tie-in on the expansion loop? Thanks,