Donaldson's cartridge dust collectors generally use solenoid valves from Australian Plateau Company. The dust collector model DFO3-18 you provided is Donaldson's latest oval cartridge dust collector, equipped with 18 pieces. The oval-shaped filter cartridge is equipped with 9 GOYEN electromagnetic pulse valves.
Zhangjiagang Changyang Industrial Filter Co., Ltd. can provide you with filter cartridges and GOYEN solenoid valves.