Discover the revolutionary Quick Open series multi-bag filter housings, a marvel of engineering featuring a self-balancing V-clamp locking mechanism. This breakthrough design departs from the conventional, offering a single-handed, user-friendly operation that is unmatched. This feature makes it the quintessential choice for applications with high flow rates. Designed for systems requiring frequent element change-outs, these housings boast minimal downtime to significantly reduce operating costs. Experience seamless batch processes like never before with this innovative solution.
Enjoy unparalleled efficiency with a fully interlocked pressure release mechanism, ensuring safety under all conditions. The rugged, corrosion-free V-clamp and proprietary screw-drive mechanism promise years of reliable service, making it a long-lasting investment for your filtration needs.
Choose from an array of filter bag materials and precisions to suit your specific requirements:
Polypropylene (PP): Available in 1-200µm, with a maximum temperature tolerance of 70°C,
Polyester (PE): Available in 1-200µm, with a maximum temperature tolerance of 120°C,
Nylon: Available in 25-800µm, with a maximum temperature tolerance of 150°C.
Explore the technical prowess of our Stainless Steel Multi-Bag Filter Machine. Technical Data: Filter-Bag Number and Size Options: 1#: Dimensions - 180mm Diameter x 410mm Length, 2#: Dimensions - 180mm Diameter x 810mm Length, 3#: Dimensions - 102mm Diameter x 210mm Length, 4#: Dimensions - 102mm Diameter x 380mm Length.
The design of our multi-bag filter is ingeniously crafted to ensure optimal filtration efficiency. Ingeniously positioned, the inlet of the multi-bag filter is placed lower than the filter bags, facilitating a seamless flow of the filter medium. As the medium enters through the inlet, it ascends to the apex of the housing above the filter bags. From here, it gracefully descends, traversing through the filter bags to accomplish the filtration process with precision. Post-filtration, impurities are effectively captured within the filter bags, while the pristine filtrate seamlessly exits through the outlet, ready for use.
To maintain peak performance and ensure longevity, it is crucial to monitor the filter bags closely. When impurities accumulate to form filter cakes and the differential pressure reaches between 0.14-0.17 MPa, it's time to replace the filter bags. During this replacement process, the filter system must be temporarily shut down. Begin by opening the pressure relief valve and the filter cover. Following the installation of fresh filter bags, restart the system for continuous operation. While filter bags can be cleaned and reused for efficiency, replacement is necessary once they exhibit significant damage. Prioritize regular maintenance to ensure reliability and superior performance.
Details of Multi-bag Filter Housing


FACTORY DISPLAY
mm |
3 bags |
4 bags |
6 bags |
8 bags |
mm |
12 bags |
17 bags |
23 bags |
A |
1420 |
1342 |
1495 |
1468 |
A |
1612 |
1640 |
1700 |
B |
400 |
450 |
520 |
600 |
B |
680 |
750 |
820 |
C |
520 |
527 |
450 |
528 |
C |
528 |
450 |
535 |
D |
250 |
225 |
300 |
200 |
D |
220 |
250 |
250 |
E |
500 |
550 |
600 |
750 |
E |
950 |
1050 |
1200 |
F |
1806 |
1781 |
1917 |
2029 |
F |
2256 |
2421 |
2586 |
G |
475 |
525 |
580 |
735 |
G |
930 |
1040 |
1195 |
N1 |
DN80 |
DN100 |
DN150 |
DN150 |
N1 |
DN200 |
DN250 |
DN250 |
N2 |
DN80 |
DN100 |
DN150 |
DN150 |
N2 |
DN200 |
DN250 |
DN250 |
H |
φ18 |
φ18 |
φ18 |
φ18 |
H |
φ24 |
φ24 |
φ24 |
1. Bolt Fastening - Designed for Enhanced Pressure Resistance
The state-of-the-art multi-bag filter features quick-opening flange ring bolts for superior pressure resistance, complemented by an innovative booster spring mechanism. This user-friendly design streamlines operations, facilitating frequent filter bag changes with minimal downtime. Boost productivity effortlessly while alleviating worker labor intensity, effectively enhancing work efficiency.
2. Spring-Balanced Mechanism for Effortless Operation
Our distinct spring balance mechanism offers an effortless, labor-saving experience when opening and closing the upper cover, allowing it to remain stable at any angle from 0-105°. With a straightforward and robust spring balance support, the compact clamshell design minimizes footprint, ensuring no liquid overflow during operation.
3. The Heart of Our Bag Filter System
Featuring a compression spring pressure piece, the system ensures a flawless 360° seal with the filter bag, preventing any side leakage. The thickened filter bag accommodates a flower plate, allowing it to withstand elevated pressure, minimizing pressure loss while maximizing filtration efficiency. Customizable to meet customer flow requirements, supporting 2-24 bags.
Innovative Spring Locking Device for Swift Bag Changes
Reliable Basket Gasket Ensures Absolute No-Leak Assurance
4. Customizable Inlet and Outlet Orientation
Tailored to meet customer-specific installation and usage requirements, the direction of the inlet and outlet is fully customizable. The flange diameter can be adjusted within the range of DN25-DN250 to suit diverse needs.
At Hebei Slot Filter Technology Co., Ltd., our Compact Bag Filter Housing, engineered for 0.5-1000 µm filtration with an impressive operating pressure of 1.5 MPa, is a cornerstone in ensuring liquid purity. It excels at removing trace fine impurities from a variety of liquids, making it indispensable across numerous industries.
- In the realm of fine chemicals, our filters ensure precision and purity, safeguarding the integrity of your products. In the paint and ink sector, our filters deliver unmatched clarity and consistency in filtration.
- Our robust solutions are vital in the oil & gas industry, providing reliable filtration for critical processes. Our filters are essential for produced water and well injection water filtration, ensuring optimal performance and safety in oil & gas operations.
- In the food & beverage industry, our technology guarantees the highest standards of purity and taste. From beer and wine filtration to juice concentrate clarification and the production of soft drinks and bottled water, our filters uphold the quality and flavor consumers crave.
- In automotive manufacturing, our filtration solutions are designed to meet the rigorous demands of production. Enhance your automotive processes with our filters, ideal for spray coating pretreatment, electrophoretic paint, finish and primer filtration, and the cleaning of parts.
- In the pulp & paper sector, our filters are critical for maintaining the smooth operation of coating processes. Our advanced filtration ensures the purity and quality demanded in coating applications within the pulp & paper industry.
- The machining industry benefits greatly from our precision filtration solutions. Maximize efficiency and longevity of machinery with our filters, perfect for machine tool coolant circulation, cleaning fluid filtration, and hydraulic and lubricating oil filtration.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the realm of industrial precision filtration and self-cleaning systems. With an impressive track record of over ten years in the industry, our company showcases unparalleled design and R&D prowess. By harnessing cutting-edge filtration technologies and premium-grade product resources, we deliver all-encompassing, tailor-made filtration solutions to our valued clientele.
Proudly bearing the ISO9001 quality management system badge and SGS certification, SLOT rigorously complies with international norms, sector-specific guidelines, and bespoke client specifications during product creation and production. Our dedication lies in crafting superior, high-performance filtration equipment and precision filtration components that set a benchmark in quality.
The SLOT automatic self-cleaning filter systems are indispensable across a myriad of industries, notably petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We cherish robust, enduring collaborations with a host of prestigious industrial enterprises on a global scale.
SLOT's remarkable filter performance, cutting-edge manufacturing capabilities, and exemplary professional services have garnered widespread acclaim. For those seeking elevated standards in filter system performance, quality, safety, and service, SLOT emerges as your reliable and esteemed long-term ally.

Quality Management: With meticulous attention to detail, our rigorous quality management processes ensure products that exceed expectations.
FAQ: Your Questions Answered - Discover more about our operations, products, and services through our comprehensive FAQ section.
1. Who are we?
We are headquartered in the vibrant province of Hebei, China, and have been pioneering since 2014. Our reach spans globally with key markets in North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
We also extend our expertise to Africa (10.00%) and the Middle East (10.00%). Our dynamic team consists of approximately 11-50 dedicated professionals.
2. How can we guarantee quality?
Quality is paramount; hence, we ensure a pre-production sample is meticulously crafted before commencing mass production.
Our commitment to excellence is further showcased by conducting a thorough final inspection prior to each shipment.
3. What can you buy from us?
Explore our diverse array of premium products: Johnson Screen, Bridge Slotted Well Screens, and Sand Control Well Screens. Our offerings also include Gravel pre-pack Screen, Pipe-based screen, Perforated Pipe, and API/5CT Casing and Tubing.
4. Why should you buy from us not from other suppliers?
1. Benefit from our expertise with robust OEM & ODM support tailored to your specifications.
2. Leverage our technical acumen - we provide custom design and drawing services to bring your vision to life.
3. Engage with our dedicated research and development team committed to innovation and excellence.
5. What services can we provide?
We offer a wide range of delivery options, including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES.
Our payment flexibility encompasses USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, and CHF.
Payment methods include T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow.
Our multilingual proficiency allows us to communicate in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
We welcome collaborations. If interested in representing our brand in your local market, reach out to us for exciting partnership opportunities.