I installed a new nozzle (2") in an ASME section VIII vessel and looking for a manufacturer or supplier of through nozzle testing equipment. I don't want to hydro the whole vessel, just the new nozzle and shell weld. I have seen the equipment from different manufacturers in the past but cant...
Can anyone help me identify the manufacture that makes these vessel head types? Manufacturer or technical information of any kind is appreciated.
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I am looking for information on NPSM straight pipe threads. The drawing I am using is from 1953 and is referencing straight pipe threads for mechanical joints ASA, B2-1, table 13, page 25. Does anyone have a reference chart or refernce book that may be available to shed light on this? We are...
Does anyone know where to find natural gas pipe sizing and capacity charts that have 20# and 50# inlet pressures similar to the ones used in NFPA 54. They existed in the older versions of the code but seem to have been discontinued. I'm looking for the old charts I believe were printed in the...
Does anyone know where to find natural gas pipe sizing and capacity charts that have 20# and 50# inlet pressures similar to the ones used in NFPA 54. They used to exist in the older versions of the code but seem to have been discontinued. I'm looking for the old charts.
We have been asked to perform a startup for a new natural gas line consisting of 2000' of 12" pipe and 1800' of 6" pipe. Are there purging requirements or standard procedures for this type of distribution system? The operating pressure will be 25psi. The system has already been pressure tested...
I have an 800' driveway with a portion that reaches 16% grade. What is a good pavement thickness and number of courses to specify? I was told a 3/4" modified topcoat should be used, any comments?
What are the common tests required after repairs are made to the shell of an API 650 tank? It is 40' tall and holds 10,000 barrels? The bottom course is 1/4" thick. We are planning on replacing an area 10" high by 60" long right above the tank bottom. My take on reading the code is radiography...
What is the reasoning behind using 150# and 300# weld necks vs. slip-ons for welded piping systems? My feelings have been that weld necks are the better choice for fittings which allows bolting clearances; and slip-ons for straight run pipe. Is there a common practice which states that or a code...
