Fans: Suitability, Configuration and Application

Industrial fans, in substantial terms, have taken on an almost capital importance in everyday life. In the hottest seasons, the heat increases considerably every year and tools of this kind are essential resources in all respects for the well-being of workers and
of the company itself. From a technical point of view they stand out for their technical characteristics and design conformity. Here, then, is an overview about it.

How a fan is made and when it is suitable by law

Industrial fans, whatever they are axial or centrifugal, as well as all electronic products, must comply with precise European regulations in order to be considered safe and suitable to be placed on the market. The rule that regulates, in this sense, the installation and extraction methods is called UNI ISO 13349. What makes a fan perfectly suitable from a practical perspective is the type of installation towards which it can tend. There are exactly four on a functional level: free suction and delivery, free suction with pipe delivery, pipe suction and free delivery, pipe suction and delivery. The function of the guards to be considered becomes fundamental when using type A installation. It allows essential elements such as suction and delivery to be kept away from accidental impacts and pressures. Type B includes guards on both the suction and delivery fronts.

Scale fixing which is also common to type C assembly (with pipe suction). Only type D is characterized by the total absence of guards positioned on the fan's delivery and intake. At this point the assembly, valid for all types of ventilation, makes use of an anti-vibration joint capable of providing greater stability to the instrument, avoiding wear and structural vibrations.

In order for legal suitability to also be guaranteed in terms of safety, a series of conditions must be respected against anomalies and improper manoeuvres. For example, never remove safety devices or shelters yourself unless expressly specified in the instruction manuals. The use of the fan in circumstances and contexts other than those indicated in the compliance directives is prohibited. Just as it is not advisable in the slightest, if not strictly prohibited, to act independently on defects and malfunctions that may compromise its stability.

Better to follow a very precise and sequential process from a procedural point of view. In the event that an operator has the necessary skills to be able to act in this sense, he must, at the same time, possess personal protective equipment. Small precautions, but they can save lives on both fronts.

 

 

 

Fans for potentially explosive environments

The fans produced by MZ Aspiratori, of which we are resellers, comply with the 94/9/EC directive and designed according to the EN14986 standard which indicates fans intended for potentially explosive atmospheres.

The Atex certified fans have been designed and built for use in areas classified as 1/21 and 2/22 and are suitable for conveying flammable and combustible substances, in compliance with the indications of the ATEX Directive 2014/34/EU. There ATEX directive and CE marking require compliance with the machinery directive, for which the Atex fan, at a regulatory level, must be considered as a partly completed machine and therefore completely protected, since it is integrated into more complex systems. Even if the safety of the systems is guaranteed, the protections must still be left with the fan and also in anticipation of a possible change of intended use of the same.

All MZ Aspiratori standard fans compliant with the ATEX directive have been examined by
commission of the TÜV NORD and have received the relevant certification.

At Meridiana Aspiratori we have always been committed to satisfying customer needs, ensuring the highest standards of quality and safety. The objective of our company is to integrate with the production processes and company dynamics of those who ask for our products and services, offering better and different quality also from a human point of view. To fulfill this mission, we have a structured, highly specialized organizational structure to support the technical, management and operational areas of companies operating in various product sectors. A complex process that focuses on the health of workers, the protection of the environment and the centrality of the relationship with our customers, fundamental reasons for achieving a stable and lasting competitive advantage.