ATEX Zone 22 • Delfin • Stationary mounting
Delfin DBFV 20/30 Z22
Stationary dust collector certified for ATEX Zone 22 with integrated vortex pre-separator. AISI304 stainless steel. H14 HEPA filter included. Maintenance-free side channel blower — purpose-built for permanent installation in explosive dust atmospheres.
- ATEX Zone 22 third-party certified under EN 17348:2022
- Integrated vortex pre-separator dramatically reduces filter loading
- H14 HEPA absolute filter for 99.995% particle retention
- Maintenance-free side channel blower without carbon brushes
- AISI304 stainless steel as standard — ideal for hazardous environments
- 270–318 m³/h — flexible performance with two model sizes
Features and Technology
The Delfin DBFV 20/30 Z22 is a stationary dust collector engineered for permanent installation in ATEX Zone 22 areas. The machine is third-party certified under EN 17348:2022 and EU Directive 2014/34/EU. The integrated vortex pre-separator separates heavy dust via centrifugal force before the air stream reaches the H14 filter — this dramatically reduces filter loading and delivers very long filter service intervals.
AISI304 stainless steel as standard ensures maximum corrosion resistance in hazardous environments. The side channel blower is maintenance-free without carbon brushes or wearing parts, making it ideal for 24/7 operation without downtime. Included pressure relief valve protects the system against overload conditions.
DBFV 20 delivers 270 m³/h and 3,000 mmH₂O maximum vacuum; DBFV 30 delivers 318 m³/h and 2,600 mmH₂O. Choose DBFV 20 for higher vacuum applications and DBFV 30 for maximum airflow capacity. Both models weigh 45–60 kg and share the same steel construction.
Technical Specifications
| Parameter | Value |
|---|---|
| ATEX Certification | II 3D Ex h tc IIIC T80°C(int)/T165°C(ext) Dc |
| ATEX Category | 3D — Zone 21 internal, Zone 22 external |
| Standard | EN 17348:2022 |
| Motor Type | Side channel blower — maintenance-free |
| Power | 2.2 kW / 4.6 A |
| Voltage | 400 V, 50 Hz, 3-phase |
| Max Airflow DBFV 20 | 270 m³/h |
| Max Airflow DBFV 30 | 318 m³/h |
| Max Vacuum DBFV 20 | 3,000 mmH₂O |
| Max Vacuum DBFV 30 | 2,600 mmH₂O |
| Continuous Vacuum | 1,900–2,200 mmH₂O |
| Filter Type | H14 HEPA absolute filter — 99.995% at MPPS |
| Filter Medium | Polyester ANT M (antistatic) |
| Noise Level | 69–70 dB(A) at EN ISO 3744 |
| Collection Capacity | 25 L |
| Construction | AISI304 stainless steel |
| IP Class | IP65 |
| Dimensions (L×W×H) | 54×55×103 cm |
| Weight | 45 kg (DBFV 20) / 60 kg (DBFV 30) |
| Suction Inlet | Ø50 mm |
| Pressure Relief Valve | Included |
Options
The Delfin DBFV 20/30 Z22 can be configured with several options for specialized ATEX environments:
- Full AISI 304 collection tank — stainless steel tank with extra corrosion protection
- Earthing connection (MT) — ESD earthing lead against electrostatic buildup in explosive atmosphere
- Stainless steel filter chamber — AISI 304 construction for complete filter housing
- Chassis with casters and handle — simple relocation between processes
- Extension pipes with bells — custom-fitted to machine size
Frequently Asked Questions
ATEX Zone 22 means the machine is certified for permanent installation in areas where explosive dust-air mixtures occur for less than 10 hours per year under normal operating conditions. It is the lowest risk level for ATEX classification. The integrated vortex pre-separator ensures heavy dust does not reach the H14 filter, significantly extending filter service life and minimizing the risk of filter clogging.
The vortex pre-separator is an integrated cyclone system using centrifugal force to separate heavy dust from the air stream before reaching the H14 filter. Heavy particles gain velocity and are cast outward against chamber walls where they drop into the collection tank. This dramatically reduces filter loading, allows significantly longer filter intervals, and protects the filter material from being clogged by coarse dust particles.
The Delfin DBFV 20/30 Z22 is third-party certified by an accredited notified body under ATEX Directive 2014/34/EU. Certification documents and full technical files are supplied with every unit. You receive technical dossiers, technical documentation, and EU Declaration of Conformity ensuring full compliance for installation in your ATEX area.
Yes. The side channel blower is engineered for continuous 24/7 operation without heating or overload conditions. The maintenance-free motor has no carbon brushes or wearing parts requiring periodic service. You can run the machine continuously in extended production sequences without downtime for maintenance.
Yes. The H14 absolute filter is included as standard on all DBFV 20/30 Z22 units. It delivers 99.995% filter efficiency at MPPS and ensures very high particle retention even in pharmaceutical and cleanroom environments. Combined with the vortex pre-separator, you achieve maximum particle separation and extremely long filter service life.
Options include: complete AISI304 stainless steel collection tank, earthing connection (MT) against electrostatic buildup, stainless steel filter chamber for extra corrosion protection, chassis with casters for easy relocation, and extension pipes. Contact us to discuss the right configuration for your specific ATEX area and production process.
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