thread330-174124
I have come across an inservice pressure vessel fabricated in germany in the 1970's and the steel grade as per the drawings and material test certificates available is FG47CW. Now we are to perform some rectification in this vessel and i am looking for the equivalent of this...
Thank you ione for the reply. Can some one tell me whether there are any gate valves which are not piggable and how can i find out. Some supplier told me gate valves designed to API600 by default is not piggable .. any comments ?