أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Dear new to pumps i suppose,
its NPSH , of that pump , normally centrifugal pumps are not suction pump , they always need a positive suction head so , a NRV in suction line insures that For verical suction use positive displacement or turbine pumps which can feed a sump/tank for further application feed
