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ATEX

Product catalog summary

1. ATEX Directives and Explosion Safety Principles

The document explains the European Union's ATEX directives governing equipment and worker safety in explosive atmospheres. Two main directives are highlighted: ATEX 2014/34/EU (ATEX 114) for manufacturers requiring product certification, and ATEX 99/92/CE (ATEX 137) focusing on worker safety in hazardous zones. The Explosion Pentagon concept is introduced, identifying five essential conditions for explosions: combustible dust presence, combustion agent, ignition source, confined space, and reagent mixing.

2. ATEX Zone Classification

Zones are classified by explosion risk probability for dust and gases: Zones 20, 21, 22 for dust with decreasing risk levels, and Zones 1, 2, 3 for gases. Equipment markings correspond to these zones to ensure proper suitability and compliance.

3. Construction and Features of DEPURECO ATEX Vacuums

Use of M Class Antistatic Polyester Filters with large surface areas for effective dust filtration.
Stainless Steel AISI 304 construction for bins and components, ensuring durability and corrosion resistance.
All components are grounded to prevent electrostatic discharge.
Incorporation of vacuum breakers, safety valves, and IP65 electrical boards to enhance operational safety.
Side channel blowers with rotation control certified for ATEX zones.
Filter cleaning via automatic jet-clean systems and manual shakers to maintain filtration efficiency.

4. Antistatic Accessories for ATEX Environments

Accessories must have electrical resistivity ≤10 Ω to safely dissipate static charges. Key accessories include:

Electroconductive EVA and antistatic polyurethane hoses in multiple diameters.
Metal pipes and galvanized steel suction nozzles.
Antistatic floor brushes with brass bristles or antistatic brass strips.
Oil-proof, carbon-loaded rubber suction lances and cones designed for conductivity and abrasion resistance.

5. Technical Specifications of ATEX Vacuum Models

The document details multiple vacuum models (e.g., BL, XM, TB, ECOBULL, TX, FOX TS, PUMA) with key parameters:

Power: 1.1 kW to 30 kW depending on model.
Maximum Vacuum: 180 mBar to 400 mBar continuous operation.
Maximum Airflow: 15,000 m³/h to over 1,350 m³/h depending on configuration.
Filter Surface Area: 6,000 cm² to 180,000 cm² with antistatic M class polyester filters standard.
Bin Capacity: 20 to 175 liters, often stainless steel and detachable on wheels.
ATEX Markings: Certified for dust and gas zones with markings such as II 3D Ex htc IIIB T140°C Dc.
Optional Features: HEPA H14 absolute filters, automatic reverse jet cleaning, spark traps, cyclone inlets.

6. Filtration and Cleaning Systems

SP System: Automatic reverse jet cleaning controlled electronically, enabling continuous operation and efficient cleaning of fine/difficult dusts.
Semi-Automatic and Manual Filter Shakers: For cleaning star filters handling shavings, granules, and wet materials.
Filtration Efficiency: High efficiency of 99.995% for particles down to 0.18 microns.

7. ATEX Certification and Explosion Protection Features

Compliance with ATEX directives with certifications such as II 1/2 D, II 3 G/D, II 3 D Ex htc IIIB T140°C.
Use of antistatic polyester filters and grounded components to prevent static discharge.
Explosion protection includes relief vents, flameless vents, isolation flap valves, and CO2-based chemical explosion suppression systems activated by pressure and heat sensors.

8. Discharge Systems

Double electro-pneumatic butterfly valves (150 or 250 mm) for automatic discharge without interrupting operation.
Manual butterfly valves and balanced flap systems for controlled discharge.
ATEX certified rotary valves for continuous hopper discharge.

9. Additional Features and Options

ATEX certified stainless steel suction arms (150 mm diameter, 3 m length) with flexible joints.
Detachable stainless steel bins on wheels for ease of handling.
Optional tangential cyclone inlets for improved dust separation.
Side channel blowers as optional ATEX certified components.
Integrated electrical control boards in some models.

10. Summary of Critical Parameters

Parameter	Range / Value	Notes
Power	0.75 kW to 22 kW (1 HP to 30 HP)	Varies by model
Maximum Vacuum	150 mBar to 420 mBar continuous	Measured in mBar or mm/H2O
Maximum Airflow	170 m³/h to 1985 m³/h	Depends on model and application
Filter Surface Area	15,000 cm² to 340,000 cm²	Antistatic polyester M-class filters, optional HEPA H14
Bin Capacity	45 L to 175 L	Detachable stainless steel bins on wheels
Filtration Efficiency	99.995% at 0.18 µm	High efficiency for fine dusts
ATEX Certification	II 1/2 D, II 3 G/D, II 3 D Ex htc IIIB T140°C	Ensures safe use in explosive atmospheres

11. Best Practices and Recommendations

Use automatic reverse jet cleaning systems (SP system) for continuous operation and efficient filter maintenance.
Ensure all components and accessories are properly grounded to prevent electrostatic discharge.
Select discharge systems appropriate to operational needs to minimize downtime.
Regularly inspect explosion protection devices such as relief vents and suppression systems to maintain safety compliance.
Prefer stainless steel construction (AISI 304 or 316) for applications requiring hygiene and corrosion resistance, such as food, chemical, and pharmaceutical industries.

12. Manufacturer Contact Information

DEPURECO INDUSTRIAL VACUUMS SRL
Address: Corso Venezia, 32 - 10088 Volpiano (TO), Italy
Phone: +39 011 98.59.117
Fax: +39 011 98.59.326
Email: [email protected]
Website: www.depureco.com

Catalog excerpts

AT.EX. The European Union adopted two European directives in regard to health and safety, known as ATEX 2014/34/UE (also ATEX 114) and ATEX 99/92/CE (also ATEX 137 or ATEX 153), concerning the risk of the existence of potentially explosives atmospheres. 2014/34/EU for the regulation of those devices to be used in zones where a risk of explosion exists; the directive points at those manufacturers of equipment intended for use in areas with potentially explosive atmospheres and at an obligation to certify these products; Directive 94/9/CE was cancelled and replaced effectively from 20 April 2016;...

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ATEX ZONES CLASSIFICATION HIGH PROBABILITY OF EXPLOSION MEDIUM PROBABILITY OF EXPLOSION EXPLOSION PENTAGON Just like the fire triangle, that represents the flammability conditions (and of consequent explosion), for liquid and gaseous combustibles, it is common to refer to “the explosion pentagon” when it comes to dusts as well as gases, vapours and mists. The five conditions represented in the pentagon of the explosions, and necessary to create the conditions for an explosion are: PRESENCE OF COMBUSTIBLE DUST PRESENCE OF A COMBUSTION AGENT IN THE ENVIRONMENT PRESENCE OF AN IGNITION SOURCE DELIMITED...

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HOW A DEPURECO ATEX VACUUM IS MADE SIDE CHANNEL BLOWER ROTATION CONTROL SAFETY VALVE VACUUM BREAKER M CLASS ANTISTATIC FILTER LARGE SURFACE CLEANING SYSTEM FILTER STAINLESS STEEL ABSOLUTE FILTER

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SUITABLE ACCESSORIES FOR ATEX APPLICATIONS AN ACCESSORY, TO BE USED IN AN ATEX CLASSIFIED ENVIRONMENT, MUST BE ABLE TO ELECTRICALLY CONDUCT ALL ELECTROSTATIC CHARGES THAT MAY ARISE DURING THE SUCTION PROCESS. THE RESISTIVITY, EXPRESSED IN 10 Ω, OF THE MATERIALS USED IN THE ACCESSORIES CHARACTERIZES THEIR ABILITY TO DISCHARGE ELECTROSTATIC ENERGY. FLEXIBLE TUBES ELECTROCONDUCTIVE “EVA” Ø 40 - Ø 50 MM Made of permanent electroconductive material ≤10 Ω Ohm / meter. Lightweighted, extremely flexible even at low temperatures. Resistant to hydrolysis, microbiotic attacks and UV rays Made of antistatic...

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BL PRO ATEX Z22 HEAD WITH DOUBLE STAGE FILTRATION SYSTEM 230V/110V DIRTY FILTER INDICATOR BRUSHLESS MOTOR ANTISTATIC M CLASS STAR FILTER FULL STAINLESS STEEL AISI 304 BL 20 JC Z22 II3D DIRTY FILTER INDICATOR HEAD WITH DOUBLE STAGE FILTRATION SYSTEM 230V/110V ANTISTATIC CONICAL M CLASS FILTER CARTRIDGE FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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BL 45 Z22 II3D HEAD WITH DOUBLE STAGE FILTRATION SYSTEM 230V/110V DIRTY FILTER INDICATOR BRUSHLESS MOTOR ANTISTATIC M CLASS STAR FILTER MANUAL FILTER SHAKER BRUSHLESS MOTOR HEAD WITH DOUBLE STAGE FILTRATION SYSTEM 230V/110V DIRTY FILTER INDICATOR BRUSHLESS MOTOR JET -CLEAN SYSTEM ANTISTATIC CONICAL M CLASS FILTER CARTRIDGE FULL STAINLESS STEEL AISI 304

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SAFETY VALVE STANDARD SIDE CHANNEL BLOWER ATEX CERTIFIED ANTISTATIC CONICAL M CLASS FILTER CARTRIDGE FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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SIDE CHANNEL BLOWER ATEX CERTIFIED SAFETY VALVE STANDARD ANTISTATIC M CLASS STAR FILTER MANUAL FILTER SHAKER FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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ECOBULL z22 SIDE CHANNEL BLOWER ATEX CERTIFIED (OPTIONAL) ABSOLUTE FILTER HEPA H14 FILTRATION EFFICIENCY OF 99,995 % OVER 0,18 µ SAFETY VALVE STANDARD ANTISTATIC M CLASS STAR FILTER 24.000 cm2 MANUAL FILTER SHAKER FULL STAINLESS AUTOMATIC REVERSE JET CLEANING SYSTEM MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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(OPTIONAL) ABSOLUTE FILTER HEPA H14 FILTRATION EFFICIENCY OF 99,995 % OVER 0,18 µ ANTISTATIC M CLASS STAR FILTER 24.000 cm2 TANGENTIAL INLET WITH CYCLONE SYSTEM MANUAL FILTER SHAKER FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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ECOBULL Z22 Additive Manufacturing NYLON FILTER SIDE CHANNEL BLOWER ATEX CERTIFIED METAL GRILL SEPARATION SYSTEM INERT ANTISTATIC CONICAL FILTER CARTRIDGE HEPA H13 35.000 cm2 SAFETY VALVE STANDARD PATENTED CONNECTION AND QUICK RELEASE SYSTEM OF THE IMMERSION NOZZLE INERT LIQUID ECOBULLAM TECHNICALDATA MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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SPARK TRAP CARTRIDGE SAFETY FILTER FULL STAINLESS STEEL AISI 304 METAL GRILL SIDE CHANNEL BLOWER ATEX CERTIFIED MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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(OPTIONAL) ABSOLUTE FILTER HEPA H14 FILTRATION EFFICIENCY OF 99,995 % OVER 0,18 µ ZONE 20 INSIDE CERTIFIED TANGENTIAL INLET WITH CYCLONE SYSTEM SIDE CHANNEL BLOWER ATEX CERTIFIED ANTISTATIC M CLASS STAR FILTER 24.000 cm2 DETACHABLE FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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AUTOMATIC _FILTERCLEANINGSYSTEM IS MANAGED BY AN ELECTRONIC PROGRAMMER INSTALLED ON BOARD AUTOMATIC REVERSE JET CLEANING SYSTEM 90.000 CM² Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester

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PUMA atex Z20/21 ANTISTATIC M CLASS STAR FILTER 45.000 cm2 / 180.000 cm2 ZONE 20 INSIDE CERTIFIED TANGENTIAL INLET WITH CYCLONE SYSTEM (OPTIONAL) ABSOLUTE FILTER HEPA H14 FULL STAINLESS STEEL AISI 304 MAXIMUM VACUUM Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester FILTER MEDIA SURFACE AREA ATEX MARKING

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AUTOMATIC _FILTERCLEANINGSYSTEM IS MANAGED BY AN ELECTRONIC PROGRAMMER INSTALLED ON BOARD AUTOMATIC REVERSE JET CLEANING SYSTEM 120.000 CM² Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester Antistatic Polyester

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