Four bags, 96 m³/h, and a registered pressure vessel design behind it
The Misonics BF-4 is a quick-open four-bag filter housing for recirculating cleaning tanks, wash-water loops and process liquids. One person opens the cover in twenty seconds without spanners, the four Size 2 bags come out and go in from one standing position, and the cover cannot be opened until the housing is vented. It is drawn by Misonics, verified to AS 3920 by an independent verifier, and registered with SafeWork NSW as a pressure vessel design — the only four-bag housing we know of in Australia that can say so.
Core features
- Cover open in 20 seconds from one standing position — 4 bags out, 4 in, cover closed
- Cannot be opened until vented and pressure relieved
- Mirror polished inside and out; 120-mesh internal finish standard, food-grade optional
- Every vessel hydro-tested to 1,000 kPa.g and certified before it leaves
- Drawn and registered by Misonics — 26-sheet drawing set MI-2025-0000001, issued with a quotation
- One consumable across the range — Size 2 bags in polypropylene, polyester, nylon mesh, PTFE membrane and more
Applications
Ultrasonic tank recirculation · coolant and wash-water loops · concentrated cleaner and sanitiser duty · pre-filtration ahead of cartridges · batch filtration of process liquids · water treatment · the filtration platform on the EVS 7000-PL
Options
304 or 316L stainless · seals in NBR, EPDM, Viton, silicone, PTFE-encapsulated or PTFE · DIN (HG20592-2009) or ANSI (HG20615-2009) flanges · HiSEP bags for 4.0 m² area · food-grade internal finish · supplied loose, or piped and mounted on a filtration skid
Related
BF-2 · BF-3 · BF-6 · BF-8 · BF-12 · Filter bags · Skids and systems · Duplex housings
Specification
| Filter bags | 4 × Size 2 (φ180 × 810 mm) |
| Flow rate | 96 m³/h, clean water at 10 µm |
| Filter area | 2.0 m² standard · 4.0 m² HiSEP |
| Design pressure | 80 kPa.g (test pressure 1,000 kPa.g) |
| Design temperature | 0–80 °C |
| Volume | 200 L |
| Filtration range | 1–2000 µm |
| Inlet / outlet | DN100 / DN125 |
| Design standard | EN 13445:2021 Unfired Pressure Vessels · AS 4343 hazard level D |
| Design verification | AS 3920:2015, third-party verified — DVF Consulting, certificate DVF-V01-2507-11 |
| Plant design registration | SafeWork NSW PDPRE7003471/25 |
| Housing material | 304 or 316L stainless |
| Seal options | NBR · EPDM · Viton · silicone · PTFE-encapsulated · PTFE |
| Internal finish | 120-mesh polish standard · food-grade optional |
| Connections | Flanged HG20592-2009 (DIN) · HG20615-2009 (ANSI) optional |
Flow is quoted for clean water at 10 µm. Derate for viscosity, finer ratings and solids loading — tell us the fluid and we will size it properly.
