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Jyntrel bag filters are extended-surface air filters rated G4 through F9, used to remove coarse and fine particulate from HVAC, cleanroom make-up air and industrial supply systems. They suit facility engineers, HVAC contractors and OEM buyers who need predictable performance at a rated face velocity of 2.5 m/s. The filter combines a high-capacity non-woven or fiberglass media with an aluminium or galvanised frame, and is available in standard and custom bag configurations.
Bag filters are typically installed in the supply air path after the pre-filter stage and before the cooling coil or final filter bank. Air enters the open face, passes through the media pockets and exits through the frame opening. The pocket geometry increases media area without increasing face dimensions, which lowers resistance at a given airflow and extends service life.
Jyntrel bag filters are rated for a nominal face velocity of 2.5 m/s. At this velocity the filter operates within its design pressure drop range; higher velocities may increase resistance and reduce dust-holding capacity, so system designers should confirm the actual operating point. The media is non-woven synthetic fibre or flame-retardant fiberglass, both of which tolerate typical HVAC humidity and temperature variations without shedding or delamination.
Filtration efficiency is available from G4 up to F9, allowing a single product family to serve both pre-filtration and medium-efficiency duties. In multi-stage systems, a G4 or M5 bag filter protects downstream F7–F9 filters and coils, while an F7–F9 bag filter can serve as the final stage in cleanroom or process air systems.
The performance of a bag filter depends on three interacting factors: media efficiency, dust-holding capacity and structural strength. Jyntrel bag filters are designed to balance these factors for continuous duty in commercial and industrial air systems.
These characteristics make the bag filter a practical choice for systems that operate continuously and where filter changes are infrequent or costly to perform.
To recommend the correct bag filter, we need the following information:
Standard sizes include 594 × 594 × 534 mm (24"×24"×21") with 6, 8 or 10 pockets; 594 × 492 × 534 mm (24"×20"×21") with 6 or 8 pockets; and 289 × 594 × 534 mm (12"×24"×21") with 3 or 4 pockets. A depth of 381 mm (15") is also available. For non-standard sizes, pocket counts or frame materials, we can customise based on drawings or samples. Our team can also assist with selecting the appropriate efficiency grade for your system's pressure drop budget and dust load.
| Item | Detail |
|---|---|
| Filter class | G4 / M5 / M6 / F7 / F8 / F9 (pre to medium efficiency) |
| Media | High-flow non-woven fibre or flame-retardant fiberglass |
| Frame | Aluminium or galvanised steel |
| Rated face velocity | 2.5 m/s |
| Standard sizes (W × H × D) | 594 × 594 × 534 mm (6 / 8 / 10 pockets); 594 × 492 × 534 mm (6 / 8 pockets); 289 × 594 × 534 mm (3 / 4 pockets); other depths such as 381 mm available |
| Typical applications | Commercial building central AC pre-filtration; cleanroom make-up air; HVAC filtration in electronics, pharmaceutical and coating plants |
| Customisation | Non-standard sizes and pocket counts supported, based on 20 years of manufacturing experience and a CNAS testing centre |
Jyntrel bag filters are used across a wide range of air-handling systems:
Jyntrel manufactures bag filters at its 50,000 m² production facility in Zhongshan, Guangdong, China. Multiple automated production lines support a monthly capacity of millions of pieces, which helps maintain stable supply for large projects and seasonal demand. With over 20 years of export experience to Europe, the United States, Japan and South Korea, we understand the documentation and consistency requirements of international buyers.
Quality control follows a four-stage process: incoming inspection (IQC), in-process inspection (IPQC), final inspection (FQC) and outgoing inspection (OQC). Each batch is tested for efficiency, pressure drop, dust-holding capacity and structural strength. Our on-site laboratory is accredited by CNAS, and we can issue test reports for customer verification. The company holds ISO 9001, ISO 14001 and ISO 45001 certifications, and achieved IATF 16949 certification in 2024. Products comply with REACH and RoHS requirements, and compliance documentation is available on request.
We support OEM/ODM orders: custom sizes, pocket counts, media grades, frame materials, logos and packaging are all available. Over 1,000 filtration solutions have been developed to date.
To receive a tailored recommendation and quotation, please provide:
Send these details to our team via the contact page. We will respond with a suitable filter specification and quotation.
Jyntrel bag filters are available in G4, M5, M6, F7, F8 and F9 efficiency grades, covering pre-filtration through medium-efficiency filtration. This range allows selection based on the required downstream cleanliness and acceptable pressure drop. Our technical team can advise on the appropriate grade for your system.
The filter is rated for a nominal face velocity of 2.5 m/s. Operating at significantly higher velocities will increase pressure drop and may reduce dust-holding capacity. For systems with higher velocities, we recommend consulting our engineers to select a filter with suitable pocket depth and media area.
We need the airflow rate (m³/h or CFM), the number of filters in the system, and the allowable face dimensions. If you have a target pressure drop or efficiency class, please include that as well. This information allows us to recommend the correct size and pocket configuration.
Yes, we fully support customisation of frame dimensions, pocket length, pocket count (3, 5, 6, 8 or 10), efficiency grade, frame material, labelling and packaging. Simply provide a drawing or sample, and we will develop a solution to match. Custom orders typically require a minimum order quantity that is agreed based on the specification.
For standard specifications, the MOQ is typically 100–200 pieces; for custom specifications, the MOQ is negotiated based on requirements. Standard lead time is 15–25 days, while large or highly customised orders may take 30–45 days. Our production capacity in Zhongshan supports stable delivery for both small and large projects.
Under standard HVAC conditions (2.5 m/s face velocity), the expected service life is 6–12 months, depending on local air quality and operating hours. We recommend monitoring pressure drop and replacing the filter when it reaches the recommended final resistance. This ensures energy efficiency and protects downstream components.
Yes, we welcome sample testing. Standard sizes can be provided free of charge, with the customer covering international shipping; custom samples may incur a development fee, which is deductible from a bulk order. Each sample includes a performance test report from our CNAS-accredited laboratory.
Our manufacturing is certified to ISO 9001, ISO 14001 and ISO 45001, and we achieved IATF 16949 in 2024. Products comply with REACH and RoHS, and test reports are available from our CNAS-accredited laboratory. These certifications support market access in Europe, the US, Japan and South Korea.