According to performance analysis, pneumatic control valve selection

the fire broke out in the pump running down the main and their solutions:) High absorption remedy: check the existing net fire pump head ( Inlet pipe is too small or too long can cause a lot of friction loss) 。 ） Impeller or pipeline remedy: check whether the pump and obstacles. ） Company production of air or inlet pipe leakage remedial measures: check whether the feed water pipe fire pump cavitation and/or air leakage. ） Stuffing box or seal wear and air leakage into the pump shell packaging remedy: check the packaging or according to the need to replace the seal. Check the lubrication pump is normal. ） When pumping hot liquid, suction or less fluctuation elimination measures: to improve fire pump suction head consult factory) The pneumatic valve or the end of the immersed depth of the entrance to eliminate measures: manufacturer shall have the right to consult the pump submergence depth of the damper, to eliminate vortex. ） Pump housing gasket damage remedy: check the replacement of fire pump seal request.