What is Multi Bag Filter Housing?
Multi Bag Filter Housing is also known as multiple bag liquid filter vessel or multi-sock filter tank. It is a pressurized industrial filtration unit that can hold 2-32 bags inside, solving your extra large flow rate.
These filter tanks can be configured for coarse pre-filtration or high precision fine filtration in your production line. Depending on your production process, you can choose the required filtration accuracy (1-1000μm) to protect your downstream equipment and improve the quality of your products.
FiltEdge’s rugged Multi Bag filter housing is widely used in the petroleum, chemical, pharmaceutical, water treatment, paint, ink and electronics/semiconductor industries. It handles acidic and alkaline liquids, high flow cooling water and solid particulate contaminants in harsh conditions, ensuring that your filtration quality remains consistent.
Multi-bag filter housings are available in several bag-count, material and connection configurations. Selection is based on required flow, pressure, temperature, liquid properties, contaminant loading, filtration rating and maintenance access.
Multi Bag Filter Housing Types
FiltEdge has 100+ multi bag filter housing types, which can be flexibly adapted to various viscosity, acidity, alkalinity and solid content. The multi bag filter vessel shown below are not all models, you can provide us with the chemical and physical properties of the slurry as well as the condition of the plant, we will help you to do the filter housing selection analysis, sample testing and OEM/ODM customization.

The most commonly used cost-effective material for the high-flow water treatment industry, saving your investment cost.

Made of SS304/SS316 corrosion-resistant material, for pharma & electronics, ensuring media purity.

Mechanical arm-assisted lid opening, suitable for high-flow production lines, for you to significantly reduce labor.
15 seconds quick opening, shorten the operation and maintenance time, avoiding your long time downtime.

The compact design of the cover, which can be flipped at any angle, makes it easy to replace the filter bag and clean the inner chamber.

Vertical opening lid reduces the equipment footprint and optimizes your plant layout.

Two filter Units can be switched freely to maintain stable filtration and eliminate downtime due to clogged bags.

The accessories are integrated into a single unit, which can be plugged in and used when it arrives at the factory, saving you the assembly and debugging.
Multi Bag Filter Housing Feature & Advance
A vertical-opening lid may suit layouts with limited horizontal clearance. Confirm overhead space, lifting access, vessel dimensions and maintenance requirements before selecting the configuration.

You can choose from 2-32 bag filter configurations for 350 GPM-5000+ GPM oversized flow ranges to keep your production line running consistently under high flow impacts.

15-second quick-open auxiliary labor-saving design, so that you can be easily operated by one person, to improve your personal safety and equipment maintenance efficiency.

1-1000μm various precision can be selected to improve the filtration efficiency and guarantee the stable quality of your products.

can withstand high pressure range of 0.6MPa-2.5MPa, allowing your Multi bag filter housing to operate safely even under pressure fluctuations.

Multi bag filter housing is compatible with international standard and FSI standard filter bag fittings, allowing you to replace filter elements with less effort and money.

Filter-bag ratings are available for different process requirements. The appropriate media, construction and nominal or absolute rating must be selected according to the liquid, contaminant and required downstream quality.

Made of stainless steel and anti-corrosion coating, your filter is fearless of strong corrosive environments and has a service life of up to 10 years.

Three-point locking and double-step sealing are designed to help control bypass when correctly installed and maintained. Confirm compatibility with the selected filter bag.
100% Leak Free of Multi Bag Filter Housing
FiltEdge adopts high-grade stainless steel material for the filter tank body, and for strong corrosive working conditions, PTFE coating is applied to the inside of the tank, which is committed to minimize the risk of corrosion point of your filter and eliminate leakage through strict design.
In addition, we also use EPDM / Viton / PTFE / Silicone and other high-performance seals in conjunction with precision-machined sealing groove design. Ensure that your filter can still maintain an intact seal under pressure fluctuations, effectively safeguarding the safety of your production environment.


Compliance of Multi Bag Filter Housing
Housing material, lining and seal elastomer are selected according to the liquid composition, concentration, temperature, pressure and cleaning method. Seal groove, basket support and closure details are reviewed for the approved model. Leakage acceptance and pressure testing must follow the agreed inspection standard; no configuration should be assumed universally leak-free or corrosion-proof.
Custom Multi Bag Filter Housing
In order to make the bag filter better match your actual needs of working conditions, FiltEdge will provide you with OEM/ODM filtration system customization solutions from the core parameters of multi bag filter housing to the detail marking in an all-round way.
- The bag filter vessel material, flow rate, filter bag specifications and filter equipment size and other hardware parameters, can be adjusted according to your needs, better match your slurry characteristics.
- Bag filter tank supports flange, triple clamp and NPT connection interface, as well as customized same side/opposite side/bottom out and other import/export directions, so that you don’t have to spend money to modify the plant and pipeline layout.
- Customize various opening and closing structures such as quick-open, rocker arm, hoop and clam open for the operation mode, so that you can save time and effort and shorten the downtime.
- Support special packaging, mark and brand logo customization, help your brand wide output.


Multi Bag Filter Housing Quality Inspection
Every FiltEdge multi bag filter housing will be strictly tested before leaving the factory to make sure you receive high quality filter housing.
- Raw Material PMI Verification: We will strictly implement the process standard of testing the incoming raw materials first, and then put them into the warehouse, so as to eliminate the confusion of materials. Through the handheld spectrum analyzer scanning, to ensure that the material is 100% in line with the specifications. Eliminate the second best, to provide you with genuine materials.
- Weld flaw detection: Adopt PT method to test the weld seam to ensure that there is no leakage of weld and no gap in the welded part, so that your filter has no leakage.
- Surface treatment: test your filter by Sa2.5 sample, roughness instrument, high-pressure EDM, etc., so that the filter meets your needs for antifouling, acid and alkali resistance, hygiene and sterility.
- Pressure test: 1.5 times water pressure test for 30 minutes, leaving a safe margin of pressure to ensure that your multi bag filter housing can run stably for a long time.
Why Choose FiltEdge’s Multi Bag Filter Housing?


FiltEdge LLC is a U.S. company established in 2023, supported by SFFILTECH in China, established in 2006. Manufacturing support is provided through SFFILTECH in China. Confirm product specifications, available quality documents, pricing and delivery in the quotation. Certificates must be checked for the relevant entity, facility and product. Support is arranged during business hours; any on-site service or warranty terms require separate agreement.
Specification & Parameter of Multi Bag Filter Housing
The specifications below summarize multi bag filter housing dimensions, flow rates and pressure ratings. Share your process requirements for review during business hours; confirm the approved design and available technical information before ordering.
- Quick Open Filter
- Clamshell Open Filter
- Swinging Arm Filter
| Item | Specification |
| Number of Filter Bags | 3 / 4 / 5 / 6 / 8 / 12 / 17 / 23 bags |
| Material | Stainless Steel (SS316 optional), high-quality O-ring |
| Opening Method | Quick-opening, vertical cover, gravity-assisted, single-finger operation |
| Replacement Time | ≤15 seconds ON/OFF quick filter bag replacement |
| Design Pressure | 0.6–1.6 MPa (6–16 bar) (Optional higher customization: 10–25 bar high-pressure model) |
| Operating Temperature | -20°C to 120°C (EPDM); up to 150°C (PTFE/Viton) |
| Filtration Rating | 1 – 1000 μm optional (commonly used 1 / 5 / 10 / 25 / 50 / 100 μm) |
| Bag Size Compatible | #1 (7“ × 16”) / #2 (7“ × 32”) International Standard / FSI Standard Filter Bag, other sizes available upon request |
| Flow Capacity | 175GPM to 4000+GPM (depending on bag quantity and media viscosity). |
| Inlet & Outlet Connection | Flange/Threaded/Clamp/Custom Orientation Standard Orientation Options: Side→Bottom/Side→Side/Top→Bottom |
| Design Standard | ASME Section VIII Div.1 / CE-PED / GB150 |
| Application | High-impurity liquid filtration, industrial liquids, chemical processing, pharmaceuticals, food and beverage |
| Features | – Quick filter bag replacement – Safety chain + balanced lid opening assistance – Multiple units can be installed in parallel – Saves pipeline space – Boosts production efficiency and reduces labor costs |
| Special Features | Modular / Parallel installation possible, High-efficiency filtration, Reduced downtime |
| Item | Specification |
| Structural Type | Mussels Open Type Multiple Bag Filter Housing |
| Number of Filter Bags | 3 / 4 / 5 / 6 / 8 / 12 / 17 / 23 bags |
| Flow Capacity | 525GPM-4000+GPM (depending on bag quantity and media viscosity) |
| Material | Stainless Steel – SS304 / SS316 |
| Cap Opening Method | Eye-bolt bolt-tightened cover + Spring-balance assisted mechanism (enabling cover to remain open at any angle) |
| Sealing System | High-quality O-type elastomer sealing ring |
| Filter Bag Compatible Models | #01 / #02 International Standard / FSI Standard Filter Bag (Optional Filter Bag or Cartridge) |
| Connection Method | Flanged connection |
| Filter Structure Features | Three-point pressing device, Reinforced support mesh |
| Design Pressure | 6–16 bar (customizable high-pressure models up to 25 bar) |
| Design Standard | ASME Section VIII Div.1 / CE-PED / GB150 |
| Operating Temperature | -20°C – 120°C (EPDM); up to 150°C (PTFE / Viton) |
| Filtration Rating | 1 – 1000 μm (commonly used: 1 / 5 / 10 / 25 / 50 / 100 μm) |
| Surface treatment | Internal surface can be polished to Ra ≤ 0.8 μm; external sandblasting or mirror finish optional |
| Installation method | Floor-mounted vertical design (upright, small footprint, multiple units can be connected in parallel) |
| Applicable liquids | Various acidic, alkaline liquids, solvents, neutral liquids |
| Item | Specification |
| Structural Type | Rocker-Arm Multi-Pocket Bag Filter Housing |
| Bag Capacity Range | 2–23 standard bag configuration; single machine max. up to 32 bags |
| Flow Capacity | 350GPM to 5600GPM (depending on bag quantity and media viscosity). |
| Applicable liquids | Various acidic liquids, alkaline liquids, solvents, neutral chemical liquids, and high-pollutant waste liquids |
| Material Options | Q235 Carbon Steel / SS304 / SS316L |
| Cap Opening Method | Quick-Opening + Rocker-Arm Assisted Top Cover |
| Surface treatment | Sand-blasting surface |
| Design Pressure | 6–10 bar (higher specifications available upon request) |
| Design Standard | ASME Section VIII Div.1 / CE-PED / GB150 |
| Operating Temp | -20°C – 120°C standard sealing; up to 150°C maximum (depending on seal material) |
| Filtration Rating | 1 – 1000 μm (standard 1 / 5 / 10 / 25 / 50 μm filter bags) |
| Bag Size | International Standard / FSI Standard Filter Bag #01 / #02 filter bags |
| Inlet/Outlet | DN80 – DN300 range |
| Connection | Standard Flanged Connection |
| Installation method | Vertical floor-mounted, multiple units can be connected in parallel for use in scenarios requiring extremely high flow rates. |
| Design Highlights | Dual exhaust + dual drainage design High-strength stainless bolts & nuts Excellent welding quality |





