For maximum safety, never use any ventilator if the nature of the fumes is unknown, or the gases to be extracted could be flammable, or even explosive. In these cases, only positive ventilation can be used, blowing into the contaminated area, creating an „air wash” without sucking any gases up with the device.

Extraction and then  pressurization of explosive gases can make them even more explosive and reactive to any spark or flame.

The hydraulic, single-phase, or electric single-phase models can only extract toxic or poisonous but not explosive fumes, such as exhaust gases, welding fumes, CO2, etc.

There have been many cases where in attempt to help a victim, stunned by gas, the rescuers didn’t realise the cause of the accident, and they too were fatally poisoned.

Some toxic gases, and even the lack of oxygen are odourless, and can be fatal without any sign of danger.

Construction and specifications:

• HO727 version powered by a Honda GX120 3 hp (2,2 kW) pull start engine (ENGINE DETAILS)
• The whole device weighs 24 kg
• Airflow: up to 2100m³/h
• Outlet diameter: 20 cm
• Frame made from stainles steel, featuring a carrying handle
• Volute casing made out of polyethylene
• Dimensions: 600 x 570 x 740 mm

Available in electric (HE828) and hydraulic (PE18H) versions as well.

For further details, feel free to contact KOMPEL Kft.

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• Volute casing made from steel sheet, protected by epoxy paint.
• Single inlet, single width, forward curved impeller, made from galvanized steel.
• Only available in execution 5, with the impeller attached directly to the motor.
• Standard orientation of the fan is LG270°.
• Single- , or three-phase asynchronous motors, with IP55 grade protection and Class F insulation, CE marked, compliant with the following international standards: IEC 60034, IEC 60072, EMC 2014/30/UE, LVD 2014/35/UE.
• Models DIC 100T and M feature IP44 protection, Class B insulation, and B14 shape, while the rest of the series are B35 standard shaped.

Accessories:

• Inlet and outlet protection guards, compliant with UNI 12499 standards, in weatherproof coating.
• Steel motor support, covered in epoxy paint.

Available upon request:

• RD rotation version.
• DIC ATEX and DIC INOX ATEX versions, compliant with ATEX directives 94/9/Ce and 2014/30/UE
  • • • (See: ATEX fans)
• DIC-INOX:Corrosion resistant version, with casing, flanges, and impeller made from AISI 304 stainless steel.
  • • • (See: Anticorrosion fans)
• DIC-AT: Version suitable for conveying hot gases up to +150°C.
  • • • (See: High temperature fans)

For further details, feel free to contact KOMPEL Kft.

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• Volute casing made from steel sheet, protected by epoxy paint.
• Single inlet, single width, forward curved impeller, made from galvanized steel sheet (models 200-315) or steel sheet with blades welded on (models 355-450).
• The impeller is coupled direcly to the motor shaft (execution 4).
• Single- , or three-phase asynchronous motors, with IP55 grade protection and Class F insulation, CE marked, compliant with the following international standards: IEC 60034, IEC 60072, EMC 2014/30/UE, LVD 2014/35/UE.

Accessories:

• Inlet and outlet protection guard, manufactured according to UNI 12499 standard, protected against atmospheric agents.
• Round inlet cone, made out of steel sheet, coated in epoxy.
• Round inlet adapter.

Available upon request:

• RD rotation ATEX version, compliant with ATEX directives 94/9/CE and 2014/34/UE.
  • • • (See: ATEX Fans)

Installation:

• Centrifugal fans with forward curved blades must always be installed into ducted systems, with adeqaute resistance (e.g. setting shutters), so the airflow limits the drawn current to the value specified by the motor rating label.

For further details, feel free to contact KOMPEL Kft.

The post Dynair AL Forward curved blade centrifugal fans appeared first on Dynair.hu.

• Die cast aluminium volute casing, protected by epoxy paint, with support feet built into the casing.
• Single inlet, open blade, die cast aluminium impeller, coupled directly to the motor.
• Fixed discharge orientation; RD 270°.
• Single-, or three-phase asynchronous motors, with IP55 grade protection and class F insulation, CE marked, compliant with the following international standards: IEC 60034, IEC 60072, EMC 2004/108/CE, LVD 2006/95/CE.  Suitable for continuous „S1” service at constant load.

Accessories:

• Inlet and outlet protection guards, manufactured according to UNI 12499 standards, protected against atmospheric agents.

For further details, feel free to contact KOMPEL Kft.

The post Dynair F aluminium centrifugal fans appeared first on Dynair.hu.