BLOWHARD PPV Fans - Firefighting-Fans, Firefighter-Fans, Firefighting-Ventilators, Firefighter-Ventilators, Firefighting-Blowers, Firefighter-Blowers

BLOWHARD - FIREFIGHTING FANS INCREASE EXTINGUISHING SUCCESS & SAFETY FOR FIREFIGHTERS

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BLOWHARD Fulfills DIN 14963

BlowHard firefighting ventilators have been tested and comply with the new DIN 14963 standard for portable ventilation equipment.

Quickee – DIN14963-EM-A-1-1
Commando –DIN14963-EM-A-2-1

BLOWHARD-FANS ADVANTAGES

Battery life is important for PPV Firefighting-Fans because every firefighter should decide for himself when he no longer needs the high-pressure fan. BLOWHARD relies on integrated high-power batteries because they enable a loss-free energy transfer, a longer running time of the fans, and a longer life than is possible with replaceable batteries. In addition to battery temperature management, the integrated battery technology also enables the IP 67 standard. The devices are therefore dust & waterproof and are therefore also ideally suited for tough firefighting operations.

The fundamental goals for every BLOWHARD Firefighting Fan are the highest and industry-leading performance values. Here, not only the battery, motor, and electronics used are decisive, but also in particular the aerodynamic design of the fan unit, such as the rotor blades and their number, as well as the design of the air grille and much more. The decisive factor is how efficiently the fan is able to handle the power provided by the battery.

Performance without control is useless. This also applies to firefighting fans. Even the highest air volumes and the highest air pressure are of no use if they cannot be targeted and used efficiently at the point of use. The BLOWHARD High-Flow-Jet airflow management system takes advantage of the already high-performance values of BLOWHARD fans and directs them precisely to the desired location. It simply offers you more options and reserves. It makes BLOWHARD an unbeatable helper in fire and smoke management.

Not every location is the same. The BLOWHARD fan design allows you to continuously tilt the airflow up to 180 degrees and precisely adjust the airflow to the conditions at the deployment site. This stepless adjustment capability allows for a wide range of tactical settings and arrangements at the job site. BLOWHARD provides you with simple but highly effective and safe PPV ventilation, no matter what the nature of your deployment site looks like.

On the emergency site, every second counts. BLOWHARD units are designed to be deployed very quickly and with maximum effectiveness at the fire scene. Both, the lightweight and the small volume of the PPV ventilators are of crucial importance for rescuers. The units are light enough to be carried to the scene by a single person and take up little storage space on fire trucks.

BLOWHARD firefighting fans are designed and manufactured for use in the toughest fire scene conditions. Water, sand, impact, and heat make little difference to the BLOWHARD fans. No wonder, because they were developed together with firefighting professionals. Despite their lightness, no compromises are made on solid construction. The firefighter fans are suitable and tested for many years of use under the toughest firefighting conditions.

At the scene of a fire, every second counts. This applies both to the fire scene and to the rescuers as well as the possible victims. BLOWHARD high-pressure ventilators, which are indispensable in such rescues, are therefore ready for use extremely quickly. The firefighters’ concentration should be on the operation and tactics at the fire scene, not on the cumbersome set-up and operation of the firefighting ventilators. BLOWHARD fans are built in such a way that anyone can quickly set them up at the scene, even without explanation

As easy as that – Simply set down the BLOWHARD fan, align it and start the high-pressure fan, focusing full attention on the source of the fire. The operation of the equipment must not be a mystery. Electronic “gimmicks” are of little use, as concentration should be on the mission and mission-tactics, not on the operation of the equipment. Even without technical training, BLOWHARD fans are very easy to operate.

BLOWHARD PPV positive pressure ventilators are designed for low operating costs. On the one hand, the units offer very high mechanical quality combined with a very long service life. The fire department ventilators always provide you with appropriate reserves, which reduces the overall load on the ventilators. The availability of spare parts and corresponding warranty plans further reduce your operating costs. Components of the highest quality are installed which have been developed in-house and manufactured for this purpose. Only the most modern, reliable, tested, and certified battery technology is used. So that the rescuers do not face any surprises.

BLOWHARD ACCESSORIES

For more distant locations, you can rely on the wheelset of the large Commando fan. It makes it possible to transport the firefighting fan comfortably to the place of operation and does not take up any additional space on the fire truck. Valuable power resources on your part are available for hard work and not for transporting the pressure fans. Order your fan with these special accessories from BLOWHARD

With an appropriate suction and pressure hose, additional rescue options are created in smoke ventilation or pressure ventilation. The possibilities in tactical ventilation and especially in smoke extraction from trapped rooms increase. These suction and pressure hoses are now also available in a heat-resistant version. Order your fan with these special accessories from BLOWHARD

Protecting structures and emergency personnel and cooling is the task of water mist attachments. The BLOWHARD HIGH-FLOW-MISTER is specially designed for use on BLOWHARD equipment, can be mounted extremely quickly by means of a pot magnet, and does not obstruct the airflow. It enables the cooling of fumes, building structures, and also of emergency personnel. Order your fan with these special accessories from BLOWHARD

Secure the fire scene and the ventilation site in an optimal way. The easy-to-use high-power LED warning flashers from CARE-FLARE offer additional protection and provide increased safety for emergency personnel as well as victims due to their intensive warning function at a distance. CARE-FLARE is available in red/white, blue/white, and yellow/white and with different flashing functions. Order your fan with these Important Accessories from CARE-FLARE

BLOWHARD - FIREFIGHTING FANS INCREASE EXTINGUISHING SUCCESS AND SAFETY FOR FIREFIGHTERS

The fan unit – Conversion of battery power to airflow
Advances in firefighting fan technology have had a significant impact on the industry’s tactics and have made the selection of PPV fans even larger. This is accompanied by the fact that the selection of the right fan model seems to be more complex at first glance.

We hope that this article will shed some light on the correct fan technology. Ultimately, however, a lot can be written. Only a test on your part will bring certainty. All qualified fan manufacturers have demo devices available, which you should definitely try out against each other.

When PPV fans were introduced to the industry, there were no major differences and all used a cone technology. When properly placed, each fan performed in a similar manner that was relatively comparable to the other. Volumetric airflow thus became a simple and valid method of measuring performance.

In order to regulate and determine this more precisely, a special PPV group (Positive Pressure Ventilation) was founded at AMCA (Air Movement and Control Association International). AMCA issues standards and norms for the development, manufacture, and certification of ventilation applications and test stations.

This group still uses AMCA as an independent industry tester. AMCA developed a standardized test for evaluating the volumetric airflow of PPV fans which is still of great use to the whole industry today, but unfortunately cannot be ideally applied to the new and combined technologies.

Jet, cone, or better a combined airflow technology?
In recent years, fan technologies have evolved greatly. New jet technologies have been introduced and have quickly replaced fans with pure cone technology. This is especially true for pressure difference points that tend to be smaller but are often used for initial attacks, such as doors and windows. Jet technology uses a concentrated high-pressure jet, and this complete and concentrated airflow is used to pressurize and ventilate the building structure. 

Due to its rapidly expanding working area, a cone loses its working pressure at these pressure difference points. Large quantities of air are often wasted because the distance from the fan to the inlet opening (pressure difference point) has not been optimally selected. This is because air hits the wall around the door at an unsuitable distance and remains unused in terms of pressure build-up. 

 

BLOWHARD - HIGH PERFORMANCE BATTERY POWERED PPV FIREFIGHTING FANS AND VENTILATORS

20″ QUICKEE – Firefighting fan – When optimum air performance and flexible use at low weight are required.

Based on the proven technology of BLOWHARD’s successful BH-20 model, but with higher ventilation performance in an even smaller and even lighter package, our compact and lightweight QUICKEE firefighter fan is the most efficient and effective firefighter fan on the market, replacing purely electric fans thanks to its excellent performance values.

24″ COMMANDO – Firefighting Fan – Maximum ventilation power and substantial reserves for any tactical ventilation.

Our large firefighter fan model is for larger fire scenes or simply when pure power is needed or more reserves are required in fire operations. As a battery-powered fan, the COMMANDO is sometimes more powerful than some gasoline-powered fans and has the ability to replace these devices in the field. Yet the COMMANDO is so lightweight and ergonomic that it can be set up and operated by a single person. 

NEW – BLOWHARD ELEKTRO – Blowhard is the pioneer resp. the inventor of battery firefighting fans. Hardly anyone has more experience in this field of pressure ventilation. Nevertheless, the successful BLOWHARD BATTERY models are now also available as a PURE ELECTRIC version BLOWHARD ELEKTRO. The big advantage is the lower weight. All other performance values remain the same. Those who wish can easily upgrade their device with a rechargeable battery at a later date.

THE AMCA PROBLEM IN FIREFIGHTER VENTILATOR PERFORMANCE EVALUATION.

It is important to note that AMCA is a useful tool for comparing similar fan technologies, but should not be used as a comparison for different technologies. Cone units should be compared to each other using this standard, or even jet units. The same applies to new combined technologies such as those developed by BLOWHARD.

Because of these discrepancies, comparing fans has become difficult for both the buyer and the fan manufacturer. Today’s marketing seems to boil down to each company touting its product capabilities, whether they are true or not, and then offering a one-dimensional solution to sell them. In reality, the effectiveness of a fan is not one-dimensional, but a combination of several factors. The dimensions addressed are

  • Equipment technology
  • Fire situation / building
  • Firefighter
  • Ventilation tactics

A firefighter’s first responder’s workplace is always a “state of emergency with intense conditions” and presents extreme physical and mental challenges to first responders, which are sometimes life-threatening. The performance of a PPV ventilator (or any other piece of firefighting equipment) should therefore be evaluated from the time the firefighter arrives on the scene until he or she leaves the scene.

While fan performance is an important metric, it is far from the only relevant one. The real performance of a fan goes beyond simply switching it on in a controlled environment for comparison purposes and should be evaluated in practice. Certainty can only come from a test on your part. All qualified fan manufacturers have demo units available, which you should definitely try out against each other in a test.

I can do everything and i can do it even better
In some cases, we are amazed at the absurd performance indicators that are used to lure customers into certain markets. However, there are two different approaches to this topic

  • Extrapolated key performance indicators based on recognized formulas
  • Exaggerated performance claims for the purpose of customer acquisition


While one can provide a good comparison between devices, the other is simply reprehensible because the rescue success depends to some extent on these performance indicators. They are a predictable physical quantity that cannot be changed. As much as we would like to, these are fixed laws of nature. For example, a certain power and a certain fan size cannot result in a physically impossible airflow.

But fortunately and with some basic mathematical understanding everyone can check this for himself

What may be said for certain, however, is that a PPV fan with a larger surface area will outperform a PPV fan with a smaller fan surface area in terms of performance, thereby also creating more reserves for the first responder in a fire.

This fact is an important factor in evaluating the effectiveness of the fan. Recent tests with fans using similar nozzle technology have confirmed this. For example, a 20-inch fan with 700 W was found to perform similarly to an 18-inch fan with almost 1000 W.

MANDATORY PROGRAM: STEPLESS TILT ADJUSTMENT

Ultimately, the success of ventilation also depends on how well you can position the fan at the inlet opening. But this inlet opening does not always play along and is often also above or below the normal level. Since we know that the distances to the inlet opening are important, it is often necessary to ventilate upwards (stairs) or downwards (cellar entrance).

Tests have clearly shown that the optimal meeting of the inlet opening plays a very decisive role in the success of the application. An optimal angle of inclination (negative as well as positive) makes it possible to use the full power of the fan even in more inaccessible places. The differences between the devices can be proven in practice by means of suitable measuring instruments. However, it is recommended for practical use to adjust the tilt angle of the respective fan so that the air flow is directed centrally to the inlet opening. Not all devices are easy to adjust the tilt angle. Each manufacturer has its own system in use here and in some cases the inclination angles are severely limited. Ventilation in stairwells (positive) or in basements (negative) or even in shafts (negative) is not possible (attention: shaft ventilation also requires EX-protected fans).

Not only the inclination upwards or downwards promises a corresponding improvement in performance, but also the positioning of the fan to the left or right (and thus out of the actually straight ventilation axis) can maximize the success depending on the place of use. But more about that in the part: Ventilation tactics of this knowledge series.

Unobstructed air flow mandatory
It seems clear that there should be no obstacles in the way of effective ventilation in order to achieve maximum air performance. This fact, as clear as it is, applies not only in front of the fan, but also in the intake area of the fan. As an example of this, we cite gasoline fans. Their engine can often hinder a free intake. This is especially the case when a relatively powerful motor meets a small rotor diameter. However, it is generally important to clear the intake area of obstacles and objects that could obstruct a free air flow or even be sucked in.

The rotor geometry and ventilation grille design
A motor from the shelf, a rotor from the shelf and a ventilation grille made of round bars that protects against reaching into the rotor blades and ready is a fan for comparatively little money. However, this does not ensure optimal success, because all these components must be optimally matched to each other.

The rotor is the most important part, because it converts the available energy from the batteries into the desired air flow. Its geometry determines how strong the air flow is and what pressure it is able to build up. It decides how much the battery is loaded and how long the fan will run on one charge. It decides what noise your fan makes.

Make sure that the rotor was designed and manufactured specifically for this application. Indications for this are different geometries near the hub and in the outer area of the blades, double rotor fins, blade profile, number of blades or whether the blades are guided at their end in the housing.

In addition, the ventilation grille has not only a protective function. The ventilation grille is crucial to direct the airflow accordingly. It shapes the airflow and is responsible for whether your device can form an effective jet airflow. In rotor blades and air grille lies the effective engineering performance in a professional fan.


Suction and the application limitations
Most fans can also operate in suction mode. The aim is to suck the smoke out of the building structure. So-called “suction ducts” are often used for this purpose. However, practical tests have clearly shown that the “suction mode” is much more inefficient than the normal “pressure mode”. This also has to do with the fact that the air has to be transported through a long pipe. Another unpleasant effect is that flue gases get through the “suction ducting” into the blower, which makes appropriate cleaning necessary after use. In general, it can be said that the “suction operation” is very demanding for the devices and can shorten the life of a device that is not optimized for it and especially the motors.

Instead of a “suction operation”, the use of so-called and patented “smoke closures” or “smoke curtains” is recommended. By appropriate application, a “suction operation” can be elegantly bypassed. Smoke gases are removed from the building structure solely by pressure differences and a skilful guiding of the “suction ducts”. This is done without direct connection of the fan to the “ducting” and without contaminating the fan.

Jet technology is better for small openings.
Due to the combination of simplicity, performance and space-saving design, it is reasonable to assume that the demand will shift to battery-powered PPV fans in the near future. In addition, there has been a growing trend in recent years to select and use fans with jet technology. This makes perfect sense since, for the most part, air is attacked through small entry openings such as doors or windows. Still, there are those cases where there is a large entry opening such as a roll-up door or garage door. Cone fans are clearly better suited for large openings for the initial attack. The following circumstances should be considered for evaluation

The point at which the air enters the building structure is the point at which it is decided how effectively the pressure is built up and maintained in the building structure.

It is important to consider the opening through which the air enters the structure as the pressure point/pressure differential point. The basic concept is that the size of the air flow should be proportional to the size of the respective entry point. . For a jet stream, the size of the opening should be 1.5 to 2.5 times the size of the air stream so that the entrained ambient air can effectively seal the opening.

In the case of a cone fan, the shape of the cone should correspond directly to the inlet point. In this respect, the distance to the opening plays a decisive role. Cone shapes are generally more suitable for large openings such as garage doors or roll-up doors. Cone fans, however, generally build up less pressure in the building structure. This pressure is needed to effectively ventilate fire locations farther from the entry opening. It is the pressure, not the airflow, that effectively and quickly clears the fire scene of smoke.

Some companies have taken steps to develop technologies that focus on the concept of Combined Air Streams (Jet & Cone). As we already know, by extending the working area beyond that of the shell. This results in significantly greater air entrainment while maintaining the high pressure associated with jet technology. Fans that use this technology offer these advantages:

  • Larger air jets and higher volume flows
  • Higher air entrainment effects to seal the inlet openings
  • Higher generated pressure in the building structures
  • Longer fan runtimes thanks to lower power consumption
  • Higher effectiveness of the entire fan system

PROTECT your patients after recovery – RIGLOO RESCUER – Rescue shelters, medical shelters & ambulance shelters for pre-hospital use

MANAGE your operation, not your pump. – KUBE-POMPA – The pump for the rough jobs. Works in almost any application situation

BCC ensures communication in emergency situations. It connects the networks that still exist and extends the limits through interoperability

SECURE your site additionally with – CARE-FLARE – Emergency Warning and Safety- High-Power LED Flashlights and Warningbeacons

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