Every building administrator is obliged to maintain fire protection systems. Maintenance of fire protection systems should take place as often as indicated by the manufacturers of these  systems, with a minimum of once a year [1]. Once every five years, internal hydrant components should be maintained. For example, a fire valve installed in a partition wall with a ventilation duct attached on one side has a fire tightness, insulation and smoke tightness of not less than 180 min. Fire valves are most commonly found in sizes dn 100, dn 125, dn 160 and dn 200.

Depending on the needs, we use one of the four available systems or a hybrid of two or three of them, optimizing the investment in terms of technical and cost aspects. Fds contracting are the experts in the design and installation of both commercial and residential  car park ventilation systems. Therefore, shev systems should only be installed by qualified specialist companies with the appropriate expertise. At the same time, certification as a recognised installer company for she systems according to vds or bhe is advantageous.

The air may be supplied with standard fans that don’t need to be resistant to high temperatures, provided they are installed outside the fire zone. If the fans are installed in the fire risk zone, they must be certified. When a fire breaks out in a building, whether a residential or an industrial one, it is necessary to extract the smoke in the fire zone in order to evacuate people and possible victims, to protect the building structure and facilitate fire-fighter access. Heat detectors are used mainly in rooms where traditional smoke detectors will not work. Such situation may be present at premises where smoke is a normal phenomenon. Heat detectors may react when the ambient temperature grows to a specific level or when a fast growth of temperature is detected within a specific period of time.

A multi-sensor, addressable detector connects the functions of a smoke detector and a temperature detector. The device operates in an active manner, which means that a growth of temperature results in increasing the sensitivity of the smoke detector. This solution ensures fast reaction of the fire alarm system independently.

Industry requires dedicated smoke removal and ventilation systems which will be resistant to interference from other machines and equipment and also adequate to the working conditions. The applied solutions must be fit for work in high-dustiness environment, variable temperatures and humidity. The system may by delivered as an independent system with its own control panel and a system of detectors or may be integrated with the existing fire detection system. We also provide designs of complete fire-fighting systems, which cover, among other things, a fire detection and alarm system, smoke removal and ventilation system, emergency and escape route lighting, as well as fixed fire-fighting systems.. Fire ventilation shut-off dampers (smoke exhaust dampers) represent a separate type of dampers.

For this reason, the terms smoke extraction and smoke/heat extraction (rwa) are often used synonymously. Our supply may comprise design and implementation of a ventilation and smoke removal system or a complete fire-fighting system. Apart from the ventilation and smoke removal jumta logi system, the complete solution may comprise fixed fire-fighting systems, voice alarm systems, emergency and escape route lighting, as well as flammable gases detection systems. An electric smoke and heat extraction system has a central control system with an integrated backup power supply to ensure operation even in the event of a power failure. The exhaust air openings (skylight dome or window) are opened by a motorised drive, which is triggered by connected smoke detectors and manual switches (also push-button detectors). Supermarkets and commercial centres may have several storeys connected by way of lifts and/or staircases.