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Stainless Steel Multi Bag Filter Housing For Water Treatment

Material: Stainless Steel / Carbon Steel / PP

No. of filter bags : 2-24

Filter Area : 1-12m²

Max Flow : 70-840(t/h)

Working Pressure : 0.5Mpa

Filtering Precision : 0.5μm

Description

The bag filter is a multi-purpose filtration equipment with novel structure, small volume, simple and flexible operation, energy saving, high efficiency, airtight work and strong applicability.

The inside of the bag filter is supported by a metal mesh basket. The liquid flows in from the inlet and flows out from the outlet after being filtered by the filter bag. The impurities are intercepted in the filter bag and can be used continuously after the filter bag is replaced.

Bag filter has the following categories: single bag filter, multi-bag filter, rocker bag filter, high-precision bag filter, etc., the filter filtration precision is in the range of 1-10 microns.

Specification

Models No. of filter bags Filtration Area
(m²)
Flow rate
(m³/h)
I/O Connections Max pressure
(Mpa)
Housing Diameter
(mm)
Total Height
(mm)
Housing Height
(mm)
DL-2P2S 2 1 70 DN50 0.5 456 1572 1144
DL-3P2S 3 1.5 105 DN80 0.5 508 1592 1190
DL-4P2S 4 2 140 DN100 0.5 558 1632 1244
DL-5P2S 5 2.5 175 DN150 0.5 608 1788 1254
DL-6P2S 6 3 210 DN150 0.5 658 1854 1300
DL-7P2S 7 3.5 215 DN150 0.5 710 1875 1340
DL-8P2S 8 4 280 DN150 0.5 760 1922 1404
DL-10P2S 10 5 350 DN200 0.5 910 2004 1430
DL-12P2S 12 6 420 DN200 0.5 962 2064 1460
DL-14P2S 14 7 490 DN200 0.5 1012 2124 1490
DL-16P2S 16 8 560 DN250 0.5 1112 2146 1512
DL-18P2S 18 9 630 DN250 0.5 1162 2225 1595
DL-20P2S 20 10 700 DN250 0.5 1212 2280 1640
DL-22P2S 22 11 770 DN250 0.5 1366 2320 1694
DL-24P2S 24 12 840 DN300 0.5 1416 2358 1748

Features

  • Bag filter has large capacity, small volume and large sewage capacity;
  • It is convenient and fast to replace the filter bag, and the filter is free of cleaning, saving time and labor;
  • Filter bag can be used repeatedly after cleaning to save costs;
  • The filtering accuracy of the filter bag has been continuously improved, and has reached 0.5 μm ;
  • The side leakage rate of the filter bag is small, effectively ensuring the filtering quality;
  • Bag filter can bear greater working pressure, with small pressure loss, low operating cost and obvious energy-saving effect;
  • Bag filter has a wide range of applications, flexible use, and various installation methods. It can be pulled along with small carts.

Structure and working principle

Bag filter is a pressure type filtering device, which mainly consists of filter cylinder, filter cylinder cover, stainless steel filter bag reinforcing mesh and other main components. The filtrate flows into the filter bag through the side inlet pipe of the filter shell. The filter bag itself is installed in the reinforcing mesh basket. The qualified filtrate can be obtained when the liquid permeates through the filter bag with the required fineness level, and the impurity particles are intercepted by the filter bag. It is very convenient to replace the filter bag. There is basically no material consumption for filtering.

Application

  • Pharmaceutical field: recovering catalyst, removing active carbon, recovering expensive active raw materials, removing protein in plasma, filtering hormone, filtering vitamin chain lifter, filtering PH value adjustment solution, filtering plant extract solution, filtering pharmaceutical syrup, pre filtering crystal solution, and filtering cough medicine.
  • Water treatment: remove impurities in mineral water; Filtration of raw water; Filter impurities in the cooling system; Remove scale or calcification in the water pipe; Chemicals used for filtering wastewater; Pre protection of RO membrane.
  • Metal processing field: hydraulic oil filtration; Coolant circulating filtration; Recovery of precious metals (aluminum, silver, platinum);Filter workpiece phosphating liquid; filter anti-rust oil; filter ultra-fine grinding oil; remove oil from cutting fluid and cleaning fluid.
  • Resin paint, coating, adhesive and other coatings: electrophoretic paint filtration; Filtration of spray water, varnish and finish filtration; Remove suspended agglomerates; Remove the ball milling filler; Remove the gel in acrylic adhesive; Remove resins and crystals; Remove the agglomeration of the adhesive coating; Filtration of hot melt polymer; Remove PVA agglomerate; Filtration during degreasing; Filtration of phosphating liquid; Filter metallic pigments.
  • Electronic industry: filtration of cooling water; removal of zinc deposits in zinc solution; removal of impurities in electrolytic copper foil stabilization tank; filtration of chip grinding wastewater.

Frequently Asked Questions

What materials are available for Yuwei Bag Filter Housings, and how do I choose the right one for my application?

Our bag filter housings are available in Stainless Steel, Carbon Steel, and Polypropylene (PP). Stainless Steel is ideal for high-purity water treatment, pharmaceutical applications, and food and beverage processing due to its corrosion resistance and durability. Carbon Steel is suitable for general industrial fluids and oil filtration, while Polypropylene is engineered specifically for harsh acid-base chemical solutions where metal housings would corrode.

What is the filtration accuracy range of these bag filters, and can they handle high-precision requirements?

The standard filtering precision for our standard bag filters ranges from 1 to 10 microns. However, our high-precision bag filter series can achieve an ultra-fine filtration rating of up to 0.5 μm. This allows them to effectively capture minute suspended solids, carbon particles, and micro-impurities in sensitive fields like pharmaceuticals and electronic cooling systems.

How do I select the appropriate housing size based on flow rate requirements?

Selection depends entirely on your processing volume. Our multi-bag filter series scales from 2-bag models up to 24-bag systems. For lower-capacity needs, our DL-2P2S (2 bags) provides a flow rate of up to 70 m³/h. For heavy-duty industrial water treatment, our maximum DL-24P2S system (24 bags) can handle flow rates up to 840 m³/h. Always match your system's peak flow rate with the corresponding model's rated "Flow rate (m³/h)" to maintain a working pressure within 0.5 MPa.

How do the internal support structure and working principle minimize fluid bypass or leakage?

The fluid enters through the side inlet and is forced down into the filter bag, which is structurally reinforced by a heavy-duty stainless steel internal mesh basket. This basket prevents the bag from stretching or bursting under pressure. Additionally, our design features a highly secure sealing mechanism that minimizes the side leakage rate of the filter bag, ensuring that all unfiltered liquid must pass through the media before exiting the outlet.

Are the filter bags disposable, or can they be cleaned and reused to save on operating costs?

Depending on the material of the filter bag used and the nature of the trapped impurities (such as non-sticky particulates), the filter bags can often be cleaned and reused multiple times. Combined with a low operating pressure loss and a highly energy-efficient pressure design, this significantly lowers long-term consumable costs and reduces material waste during continuous industrial filtration.

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