أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
a kind of electric protection ....from the pump to the CB..
The pressure sensing line connection for each pump, including jockey pumps, shall be made between that pump s discharge check valve and discharge control valve. This line shall be brass, copper, or series200 stainless steel pipe or tube, and the fitting shall be of ½ inch (12.7 mm) nominal size.
