Loca hydrotest of closing seam.
Loca hydrotest of closing seam.
(OP)
Hello everyone,
We have a column of alloy steel. Inside the column we have to install a reboiler, but the reboielr shall be install after the Hydrotest and during the Hydrotest of the column reboiler shall not be present inside the vessel. What we have thought is install the reboiler after the Hydrotest of the column by cutting the closing seam of the vessel and again reweld it and do the local PWHT. My qts is how can we do the local Hydrotest of the closing seam, or what is the correct method and procedure..?
regards
We have a column of alloy steel. Inside the column we have to install a reboiler, but the reboielr shall be install after the Hydrotest and during the Hydrotest of the column reboiler shall not be present inside the vessel. What we have thought is install the reboiler after the Hydrotest of the column by cutting the closing seam of the vessel and again reweld it and do the local PWHT. My qts is how can we do the local Hydrotest of the closing seam, or what is the correct method and procedure..?
regards





RE: Loca hydrotest of closing seam.
RE: Loca hydrotest of closing seam.
RE: Loca hydrotest of closing seam.
Volumetric nondestructive examination (NDE) is a method to evaluate the entire volume of weld metal deposited and surrounding base metal. The two basic volumetric test methods are either radiographic testing (RT) similar to an x-ray, and ultrasonic testing (UT) using shear wave or phased array techniques. This type of work requires a company that is qualified and specializes in RT and/or UT nondestructive test (NDT) methods.
For more background information, search the internet for either NDT method.
RE: Loca hydrotest of closing seam.
now it got cleared.
thanks.