BCM backwashing filter system

The basic construction consists of the main housing, geared motor, inlet and outlet ports with flanged connections, filter elements, drain valve, pneumatic actuator and HMI control system. All of these combined together provide a completely automatic backwashing filtration system.The process begins with fluid passing trough the inlet flange reaching the filter elements by flowing from inside the element to outside. Impurities are then trapped on the inside of the wedge-wave filter element. As impurities increase, the differential pressure between the contaminated and clean side increases. When the set differential pressure is reached, automatic backwashing is trigged. (Note: This backwashing activation has an adjustable differential pressure and time setting.)The backwashing process is one complete cycle which cleans one filter element at a time in succession. The geared motor turns the washing arm with proper angulation to the filter element being cleaned. The drain valve is then opened by a pneumatic actuator. This results in a high differential pressure between the contaminated and clean sides. The high differential pressure makes clean fluid flowing from outside the element into inside, and then the impurities are washed down and forced into the drain line. When the set backwashing time is reached, the drain valve is closed, and the backwashing for this element finishes. (During this operation, only a small amount of clean fluid is used to complete the backwashing process.) Then the geared motor turns the washing arm again, and the backwashing for another filter element starts. After all the filter elements are cleaned in succession, the washing arm turns back to its original position and this backwashing cycle is completed. Features It can remove impurities from the filter elements easily and thoroughly with no dead corner, ensures the filtration quality with no flow decay, and long-life operation.Made of SUS304 or 316, the filter element is of strong strength, corrosion resistance, filtering precision with micro rating can be 25 µm.With its own searching and emergency operation functions, BCM starts automatic backwashing, and can cope with the change of each water quality and the wave motion with hydraulic, without manual operation.Fewer fragile filter elements required, and no consumable item, result in easy operation and little maintenance.BCM is sensitive and responsive. It runs accurately, and can adjust pressure setting and time setting according to differential fluids and / or filtering precision flexibly.During the cycle, backwashing each filter element in turn, it makes sure filter element completely cleaned, and meanwhile the other elements not being affected and keeping on filtering.Only a few seconds and a small amount of clean fluid are used during backwashing operation, for using the pneumatic drain valve.Inlet and outlet ports are adjustable discretionarily according to customer requirement. With reasonable and compact structure design, BCM requires less space, easy installation and / or removal.