Hi Matman,
According to the EN 10216-2 you can specify P265GH with an impact test @ 0°C and the KV must be => 27J.
Then you can use figure B.2-2 from the EN 13480-2 to determine which wall thickness may be used to -40°C.
Dear airfox2000,
If the target is to get a absolutely leak free connection joint you can use welding gaskets. These gaskets are provided with an extra steel lip which can be welded to the flange and to the lip of the other gasket after installation. This way you have a welded connection around...
I need to specify a metal for the construction of a sample valve. The fluids are hydrochloride acid and sodium hydroxide. My guess is some hastelloy type (B or C) but what type is best resistant to both acid an akalic fluid?
Thanks for your help/tips
Jay165 is right, the bolt circle and bolt diameter are the same upto 3" and it is not common practice to bolt 300# to 600#. If a specbreak is needed you do it at a weld location on your isometric.
Hello zeven,
The form you describe is what I mean. I found a method for calculation that is called "Pressure Strength Ratio - P.S.R". I used it and the outcome seems ok but I do not know if it is reliable.
Hello people,
I have to calculate a reinforcement for a 36"x36" pipe to pipe connection under a angle of 30 degrees. I found out this should be done with a triform reinforcement. Does anybody know how to calculate the dimensions of the plates to use?