The BF quick-open multi-bag range — two to twelve bags, 72 to 288 m³/h, in 304 or 316L. Interlocked so the cover cannot open under pressure.
Most bag housings are a ring of bolts. Someone walks around the vessel undoing them, lifts a heavy cover off, changes bags, then walks around again doing them up — unevenly, which is how seals fail. The BF range replaces that with a V-shape clamp and a handwheel.
Unlock, rotate the wheel, open. Twenty seconds from one standing position — no walking around the vessel, no bolts to tension evenly.
The cover cannot be opened until the vessel has been vented and the pressure relieved. A safety interlock, not a procedure someone has to remember.
The cover opens vertically and stops at any angle under one finger. No overhead lifting gear and no side clearance for a swinging cover.
Every housing takes the same Size 2 bag (φ180 × 810 mm), so one consumable covers your whole site no matter which size sits on which line. Size 1 bags can be accommodated where the duty suits; Size 2 is our pick and what the range is built around, and the four-bag Size 2 is the one we supply most.
Filter area 1.0 m² standard, 2.0 m² with high-area bags. DN80 / DN100 connections.
Filter area 1.5 m² standard, 3.0 m² with high-area bags. DN100 / DN125 connections.
Filter area 2.0 m² standard, 4.0 m² with high-area bags. DN100 / DN125 connections.
Filter area 3.0 m² standard, 6.0 m² with high-area bags. DN125 / DN150 connections.
Filter area 4.0 m² standard, 8.0 m² with high-area bags. DN150 / DN200 connections.
Filter area 6.0 m² standard, 12.0 m² with high-area bags. DN200 / DN250 connections.
| Model | BF-2 | BF-3 | BF-4 | BF-6 | BF-8 | BF-12 |
|---|---|---|---|---|---|---|
| Design pressure (MPa) | 1.0 | 1.0 | 1.0 | 1.0 | 0.7 | 0.7 |
| Flow rate (m³/h) | 72 | 72 | 96 | 144 | 192 | 288 |
| Filter bags | 2 | 3 | 4 | 6 | 8 | 12 |
| Filter area — standard (m²) | 1.0 | 1.5 | 2.0 | 3.0 | 4.0 | 6.0 |
| Filter area — high-area (m²) | 2.0 | 3.0 | 4.0 | 6.0 | 8.0 | 12.0 |
| Inlet / outlet | DN80 / DN100 | DN100 / DN125 | DN100 / DN125 | DN125 / DN150 | DN150 / DN200 | DN200 / DN250 |
| Approx. volume (L) | 125 | 190 | 224 | 324 | 446 | 674 |
Design temperature 0–250 °C, also limited by seal and bag material. Filtration 1–2000 micron. Housing 304 or 316L; legs, bolts and nuts stainless. Seals in NBR, EPDM, Viton, silicone, PTFE-encapsulated silicone or PTFE. Outside bead blasted; inside 120-mesh polish standard, food-grade optional. Connections flanged to HG20592-2009 (DIN), HG20615-2009 (ANSI) optional. Flow figures are for clean water at 10 micron — derate for viscosity, finer ratings and solids loading.
Housings are quoted to duty — vessel size, material, seal compound, internal finish, connections and any certification requirement all move the price. Give us the fluid and the flow and you get a firm number, plus the expected bag change interval so you can budget the consumable too. Request a quote →
Flow rate, fluid, temperature, particle size and how often you want to change bags. We size the housing and the bag around that and quote the pair, delivered and commissioned.
