The weld flange valve needs flange sheet not
The welding flange valve needs the valve body and the both ends to connect the flange to weld together, needs the flange piece;The butt welding connection valve, the socket welding connection valve, the connection end does not need the flange piece;You mentioned the welding flange valve should be clear whether the welding connection, or flange and valve body welding?.
Flange installation, the valve comes with a pair of flange film: used to weld in the pipe and flange connection, flange installation is included in the valve installation, its installation costs included in the flange installation quota. After calculating the flange count, do not calculate the flange on the valve.
Do you need flange sheet for the welding flange valve?Answer, must be flange piece
It is necessary, in the end you welding tightness and strength experiment to use, some equipment manufacturers with flange connection, you do not need, I do an industrial gas only welding valve pressure test, after the withdrawal of all
