During construction of a new power plant it was observed that a section of "new" pipe was extremely pitted (after being welded in, only the outside surface has been inspected). We understand that it was at the mill for three years and then shipped to the construction site. The AE is claiming...
Can you weld a 6" sch40 pipe cap over a hole (removed thermowell) in a 10" Sch40 pipe. Area reinforcement for a branch connection per B31.1 is provided without adding a reinforcement pad.
Is a branch spool piece required between the 10" pipe and the 6" cap?
Thanks for your replies!
Hey all, I am looking to see if there are simple options to monitor online strain, strain rate, deflection or swelling. I have a steam pipe that was deformed by an impact. Most of the pipe was replaced but a small section that was away from the impact has to stay online for a few years. I...
I am told that the relief calculation changed in 1978. I have been asked to investigate this due to that fact that a safety on a boiler steam drum needs to be replace in the furture. The vendor's quote for an identical replacement valve at the original design inlet conditions now has an...
I am told that the relief calc in sect VIII changed in 1978. I have been asked to investigate this due to that fact that a safety on a boiler steam drum needs to be replace in the furture. The vendor's quote for an identical replacement valve at the original design inlet conditions now has an...
Would anyone in the group be able to point me to fabrication methods for 1.5D elbows, forgings and welded. I have heard that a elbow can be fabricated from plate steel and have one weld on the extrados. I would greatly appreciate any information.
Thanks!
I have a project that will remove a large amount of calsil from large bore steam pipes. I am looking for information regarding the thermal properties of calsil and new materials so that heat loss is reduced.
Has anyone evaluated any new materials?
Does anyone know what the material is for the Grinnell threaded rod fig 140? I have an 8' piece to replace. I would like to have it made locally and need to specific the material.
Thanks for your help.
Has anyone used or know of a laser device that one person can use to get accurate measurement of pipe and supports for hard to access pipe systems.
Thanks for your replies!
I have a job to review a main steam line in a 1950's power plant. They have "Counterpoise Constant Support Hangers" from Basic Engineers. I have found reference to these in the National Valve and Manufacturing Company, NAVCO, book. However, support type, size, travel, load are not listed in...
