I WANT TO KNOW ABOUT DUCT COLLECTOR, OUR DUCT COLLECTR SPECIFICATION IS CFM- 2500,
BUT WE WAS APPLY TORIT TEXT HCD 360X660MM FOUR FILLTERS, EACH FILTER FLOW RATE IS 750 CFM, ALSO WE USE 4 DIAPHRAM VALVE FOR THE BACK PULSER SYSTEM,IS THIS CALCULATION TRUE