Don't forget to include the time it takes you to find the part when evaluating whether something is cheaper to buy than make. Oh, and don't forget shipping.
Several manufacturers list pressure ratings at various temperatures. Look at the sites below.
http://www.ftipv.com/flex_hose_connectors/ptfe_tube.html
http://www.tygon.com/Data/Element/Node/ProductLine/product_Line_edit.asp?ele_ch_id=L0000000000000001513
waskilly - While I will agree that 2D AutoCAD is more than sufficient there are some real benefits to going 3D. Automatic updating of all drawing sheets and BOMS upon model update is the biggest one.
At the ASME fabricator I worked at we made vessels that were of similar design with minor...
Looks like a pretty big "woops" to me. I would suggest that now is the time to get your friendly local ASME code guru in to assist. Only a detailed review of the calcs and design will lead you to the best answer on this one.
Try to get your hands on a copy of The Valve Primer
by Brent Stojkov. This book is an excellent introduction to all types of valves including gate valves.
