[CENTER]بسم الله الرحمن الرحيم
[RIGHT][FONT=Arial][SIZE=3][COLOR=Blue][B]لدى سؤال وبرجاء الافادة ضرورى
و انا عندى طلمبه variable volume piston pump يتغير معدل السريان الخاص بها
هل عندما تتحول من السريان الطبيعى الى حاله minimum flow يقل ضغط الطرد
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[CENTER]شكرا
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piston pumps should be designed and operated at
the maximum discharge stroke setting for the best
operation. Two in-line ball check valves on both sides
of the plunger pump are also recommended (1) for
better backflow protection if back siphoning from the
discharge to the suction tank is possible and (2) to make operation of the pump smoother if the suction is high .
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