... on the filter bag, fall into the gray ash hopper discharge valve eduction.This series has the bypass flue dust, when boiler ... bag.4, pulse blowing system: something united box, electromagnetic pulse valve, pressure fittings, nozzle tube, support etc. HGSM-5.6 ... components.7 and off-line protection system: mainly by bypass valve, emergency water spray system, differential pressure device, level meter, ...