Multi Bag Filter for Particle Filtration in High Flow Fluids

Multi bag filter consists of a filter housing, multiple fixed baskets and multiple filter bags and is suitable for high flow fluid filtration. In addition, we also offer single bag filters and duplex bag filters to meet your diversified filtration demands.

Material: carbon steel, SS 304, SS316, special materials are available upon request.
Muti bag structure, PE, PP, PA, PTFE and stainless steel filter bags for your option.
Filter rating up to 0.5 – 1000 μm, flow rate up to 2400 GPM.

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Working Principle

The position of the multi bag filter inlet is lower than that of filter bags. Filter medium enters from the inlet, reaches the top part of the housing above filter bags, flows downward and goes through filter bags for filtration. After filtration, impurities are trapped in filter bags, and the clean filtrate flows out from the outlet.

Filter bags need to be replaced when the impurities on filter bags build up into filter cakes and the differential pressure reaches 0.14–0.17 MPa. When replacing filter bags, you must shut down the filter system for a period of time, open the pressure relief valve and filter cover, and reinstall the filter after replacing filter bags. Filter bags can be reused after cleaning, but need to be replaced when damaged to a certain extent. Filter bags can be reused after cleaning, but need to be replaced when being damaged to a certain extent.

Maintenance

The filter bag needs to be replaced when the impurities on the filter bag build up into a filter cake and the differential pressure reaches 0.14-0.17 MPa.
As bag filters are frequently used, trapping a large quantity of impurities, as a result, regular inspection, maintenance and repair are required even the differential pressure is small.
If the gasket is deformed, replace with a new one immediately.

Specification

Housing material: Carbon steel, SS304, SS316 or customized.
Support basket material: Stainless steel woven wire mesh or stainless steel perforated metal mesh
Bag type: Stainless steel, PE, PP, nylon, PTFE filter bags
Filter rating: 0.5–1000 μm
Surface treatment: Mirror polishing
Operating pressure: Up to 1.5 MPa
Operating temperature: 250 °F (120 °C)
Configurations: Side-in//bottom-out and bottom-in/bottom-out
Housing and cover connection: Eyebolt, flange and quick opening
Installation: Flange connection, butt weld connection and threaded connection

Application

Bag filters are mainly used to remove trace fine impurities from liquids and are widely used in the following industries.

Fine chemicals. Paint and ink filtration;
Oil & gas. Produced water filtration; well injection water filtration;
Food & beverage. Beer and wine filtration; juice concentrate clarification; soft drink and bottled water production and filtration;
Automotive manufacturing. Automotive spray coating pretreatment, electrophoretic paint, finish & primer filtration; parts cleaning fluid filtration;
Pulp & paper. Coating filtration;
Machining. Machine tool coolant circulation filtration; cleaning fluid filtration; hydraulic and lubricating oil filtration.

Multi bag filters used in resin production process

For resin production

For seawater desalination

For food & beverage water filtration