Bag Filters · V-Type/W-Type Compact Pleats · Box-Type Filters — Multiple configuration options to meet various installation space and airflow requirements, M5–F9 medium-to-high efficiency filtration providing core protection for clean HVAC systems.
Choose bag, compact-pleat or box-type filters based on installation space, airflow requirements and maintenance convenience
Flexible bag structure — airflow enters through the bag mouth and is filtered through the bag walls. Suitable for high-airflow, low-resistance scenarios with simple installation and maintenance. 3/5/6/8 bag options, depth 350–650mm.
MiniPleat media arranged in V/W patterns dramatically increases filtration area per unit volume (up to 25m²). MiniPleat technology ensures low pressure drop, ideal for high-airflow applications with limited installation space.
Rigid box housing that can accommodate panel/compact-pleat cartridges. Standardized dimensions fit various AHU frames, with excellent sealing and high pressure-bearing capacity, suitable for high-pressure or large-format applications.
From economy standard bags to nanofiber high-efficiency low-resistance bags — Yiran® offers four major bag series: EFL (eFlow high-efficiency low-resistance), DVL (DuraVault ultra-high DHC), NSD (NanoShield nanofiber), and BSC (BasicClean standard)
Fine-denier synthetic fiber + gradient density media, maintaining low operating resistance at F7–F9 efficiency. 8-bag configuration maximizes filtration area, with typical applications ranging from F7 fresh air filtration to F9 cleanroom pre-filtration.
Extended bag depth + high-loft synthetic fiber structure, dust-holding capacity of 600–800g, far exceeding same-class standard bag filters. Dramatically extends replacement intervals in heavy pollution environments, reducing total O&M cost.
Nanofiber layer coated on synthetic fiber media surface, employing surface filtration mechanisms to significantly enhance capture efficiency in the F7–F9 range. Initial resistance is approx. 20% lower than traditional melt-blown bag filters at equivalent efficiency.
Economy entry-level bag series, meeting G4–M6 efficiency requirements. Standardized dimensions with multiple bag-count options, ideal for general HVAC pre/medium-efficiency filtration with outstanding value.
| Series / Model | Efficiency Class | Dimensions W×H×D (mm) | Bags | Initial ΔP (Pa) | Final ΔP (Pa) | Rated Airflow (m³/h) | Filter Area (m²) | DHC (g) | Media | Frame |
|---|---|---|---|---|---|---|---|---|---|---|
| EFL-F7/8B | F7 (ePM1 ≥50%) | 592×592×650 | 8 | 70 | 300 | 4250 | 6.8 | 520 | Synthetic Fiber (Fine Denier) | Galvanized Steel |
| EFL-F8/8B | F8 (ePM1 ≥70%) | 592×592×650 | 8 | 95 | 350 | 4000 | 6.8 | 480 | Synthetic Fiber (Fine Denier) | Galvanized Steel |
| EFL-F9/8B | F9 (ePM1 ≥85%) | 592×592×650 | 8 | 120 | 400 | 3800 | 6.8 | 440 | Synthetic Fiber (Fine Denier) | Galvanized Steel |
| DVL-F5/8B | F5 (ePM10 ≥60%) | 592×592×550 | 8 | 55 | 250 | 3800 | 5.6 | 800 | Synthetic Fiber (High-loft) | Galvanized Steel |
| DVL-F7/8B | F7 (ePM1 ≥50%) | 592×592×550 | 8 | 90 | 350 | 3600 | 5.6 | 620 | Synthetic Fiber (High-loft) | Galvanized Steel |
| NSD-F7/8B | F7 (ePM1 ≥50%) | 592×592×650 | 8 | 65 | 300 | 4250 | 6.5 | 500 | Nanofiber-Coated | Galvanized Steel / Plastic |
| NSD-F8/8B | F8 (ePM1 ≥70%) | 592×592×650 | 8 | 85 | 350 | 4000 | 6.5 | 460 | Nanofiber-Coated | Galvanized Steel / Plastic |
| NSD-F9/8B | F9 (ePM1 ≥85%) | 592×592×650 | 8 | 105 | 400 | 3800 | 6.5 | 420 | Nanofiber-Coated | Galvanized Steel / Plastic |
| BSC-G4/5B | G4 (Coarse ≥90%) | 592×592×350 | 5 | 40 | 200 | 2800 | 2.8 | 300 | Synthetic Fiber | Galvanized Steel |
| BSC-M6/5B | M6 (ePM10 ≥80%) | 592×592×350 | 5 | 65 | 250 | 2600 | 2.8 | 350 | Synthetic Fiber | Galvanized Steel |
| EFL-F7/6B | F7 | 592×287×650 | 6 | 70 | 300 | 2100 | 5.1 | 390 | Synthetic Fiber (Fine Denier) | Galvanized Steel |
Covering four major series — VCP (V-Compact MiniPleat), WMX (W-Max ultra-high area), BXC (BoxCel box-type), and MBX (MegaBox high-capacity box) — meeting the demands for high airflow and high efficiency in compact installation spaces
MiniPleat technology + fiberglass media, 4 V-arranged pleat packs delivering filtration area equivalent to a 650mm bag filter in just 292mm depth. Rated airflow 3400m³/h, F7–F9 efficiency options available.
W-type dual-row pleat layout delivering up to 25m² filtration area — approx. 3.5× bag filters of the same volume. Fiberglass or synthetic fiber media options, ideal for AHU retrofit projects with limited space but demanding airflow requirements.
Rigid box housing with replaceable compact-pleat/panel cartridges inside. Standard 592×592×292 dimensions fit universal AHU frames. F6–F8 efficiency range, suitable as intermediate filtration for cleanroom HVAC systems.
Oversized 610×610×292mm format, designed for high-volume AHUs. Large-capacity compact-pleat cartridges inside, with per-unit airflow well above standard 592mm models, dramatically reducing the number of filters required.
| Series / Model | Efficiency Class | Dimensions W×H×D (mm) | Structure | Initial ΔP (Pa) | Final ΔP (Pa) | Rated Airflow (m³/h) | Filter Area (m²) | Media | Frame |
|---|---|---|---|---|---|---|---|---|---|
| VCP-F7/292-4V | F7 (ePM1 ≥50%) | 592×592×292 | 4V-MiniPleat | 70 | 350 | 3400 | 6.4 | Fiberglass | Galvanized Steel |
| VCP-F8/292-4V | F8 (ePM1 ≥70%) | 592×592×292 | 4V-MiniPleat | 100 | 400 | 3200 | 6.4 | Fiberglass | Galvanized Steel |
| VCP-F9/292-4V | F9 (ePM1 ≥85%) | 592×592×292 | 4V-MiniPleat | 140 | 450 | 3000 | 6.4 | Fiberglass | Galvanized Steel |
| WMX-F7/292 | F7 (ePM1 ≥50%) | 592×592×292 | W-MiniPleat | 65 | 350 | 5000 | 18 | Fiberglass | Galvanized Steel |
| WMX-F8/292 | F8 (ePM1 ≥70%) | 592×592×292 | W-MiniPleat | 95 | 400 | 4800 | 20 | Fiberglass | Galvanized Steel |
| WMX-F9/292 | F9 (ePM1 ≥85%) | 592×592×292 | W-MiniPleat | 130 | 450 | 4500 | 25 | Fiberglass | Galvanized Steel |
| BXC-F6/292 | F6 (ePM2.5 ≥70%) | 592×592×292 | Box-Type | 60 | 300 | 3400 | 5.5 | Synthetic Fiber | Galv. Steel Housing |
| BXC-F8/292 | F8 (ePM1 ≥70%) | 592×592×292 | Box-Type | 110 | 400 | 3000 | 7.0 | Fiberglass | Galv. Steel Housing |
| MBX-F6/292 | F6 (ePM2.5 ≥70%) | 610×610×292 | Box-Type | 55 | 300 | 4200 | 7.2 | Synthetic Fiber | Galv. Steel Housing |
| MBX-F8/292 | F8 (ePM1 ≥70%) | 610×610×292 | Box-Type | 100 | 400 | 3800 | 9.5 | Fiberglass | Galv. Steel Housing |
Yiran® bag and compact-pleat products are designed against leading international brands to ensure key parameters are on the same level
Select the right filter type based on installation space, airflow requirements, efficiency needs and budget
Second-stage filtration in commercial buildings and hospital AHUs, requiring F7 efficiency + high airflow + low resistance — bag filters are the top choice.
Existing building retrofits where AHU depth is limited (<350mm) and standard bags cannot fit — V-type compact pleats are the optimal alternative.
Cement plants, steel mills, buildings near mining areas — high DHC is the core requirement to extend replacement intervals.
Pharma/electronics cleanroom AHUs requiring F9 efficiency to protect terminal HEPA/ULPA and reduce HEPA replacement frequency.
Existing bag filter systems where improved efficiency or reduced energy consumption is desired without changing mounting frames.
Large shopping malls, convention centers, airports — AHUs handling 20,000m³/h+ per unit.
From media selection to structural design, every decision targets lower total cost of ownership (TCO)
Nanofiber coating technology, surface filtration mechanism reducing initial resistance by 20% at equivalent efficiency
Hot-melt adhesive spacing + uniform pleating, achieving 6–25m² filtration area within 292mm depth
Progressive structure with loose upstream face / dense downstream face, maximizing in-depth dust-holding for extended service life
Integrated injection-molded gasket / continuous PU foam seal ensuring zero bypass leakage
Share your AHU dimensions, airflow, efficiency requirements and space constraints with Yiran® engineers — we will provide detailed selection proposals and energy consumption comparisons.