PRESSURISATION CONTROL SYSTEMS
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PRESSURISATION CONTROL SYSTEMS FOR STAIRCASES, LOBBIES AND ESCAPE ROUTES EN-12101-6 Smoke and heat control systems: Specification for pressure differential systems - Kits

SODECA offers solutions in industrial ventilation, smoke exhaust, staircase pressurisation and improving indoor air quality.

Our quality procedures, certified in accordance with ISO 9001:2015, have placed Grupo SODECA as one of the best and most recognised fan manufacturers in the world. As a result of the expansion process and consolidation of the business, in 2018 we inaugurated the new headquarters located in Ripoll, a municipality near Barcelona. These new installations have a surface area of more than 15,000 m2, distributed into offices, customer service area, warehouse and production area. Currently, SODECA has become an international leader in the ventilation sector; primarily for its solutions in fire...

PRESSURISATION CONTROL SYSTEMS SODECA pressurisation control systems have been designed in accordance with European standards: EN 12101-6:2005 Standard for the design, installation, commissioning and maintenance of differential pressure systems, for protection against smoke in escape routes. EN 12101-13:2022 Update of the previous standard EN 12101-6:2005 for the design, installation, commissioning and maintenance of differential pressure systems, for protection against smoke in escape routes. The use of one or the other standard for the design of a pressurisation system depends on the...

RESPONSE TIME The European standards of design and product of pressurisation systems require all systems be designed in a manner that the force to be applied on a door handle to open it does not exceed 100N and in a manner that makes it possible to respond in just a few seconds to the changing positions of the doors during an evacuation by increasing the supplied flow when a door is open and reducing it to limit overpressure inside the protected space when a door is closed. STATE-OF-THE-ART CONTROLS SODECA systems are equipped with state-of-the-art, built-in controls that meet the most...

STANDARD EN 12101-6:2005 TYPES OF SYSTEMS DIFFERENTIAL PRESSURE CRITERION (all the doors closed) ON-SITE PROTECTION The project conditions are based on assuming that the building will not be evacuated unless it is directly threatened by the fire. The level of compartmentalisation of the fire is normally safe for the occupants who remain inside the building. Therefore it is not very likely that more than one door will be open at the same time in the protected space (either between the stairs and the lobby / corridor or the final exit door). 1. Door open. / 2. Door closed. / 3. Air exhaust....

STANDARD EN 12101-6:2005 TYPES OF SYSTEMS DIFFERENTIAL PRESSURE CRITERION DIFFERENTIAL PRESSURE CRITERION (all the doors closed) FOR ESCAPE ROUTES VIA SIMULTANEOUS EVACUATION 0.75 m/s 1 1. Door open. / 2. Door closed. / 3. Air exhaust. *The figure may include lobbies. Class C systems are designed for all the occupants of the building to be evacuated at once when the fire alarm is activated. In the case of a simultaneous evacuation, it is assumed that the stairs will be occupied for the normal evacuation period and then be free of people. Thus, the evacuation will take place during the first...

STANDARD EN 12101-6:2005 TYPES OF SYSTEMS DIFFERENTIAL PRESSURE CRITERION DIFFERENTIAL PRESSURE CRITERION (all the doors closed) FOR ESCAPE ROUTES WITH EVACUATION IN PHASES 1 They are used in buildings where fire evacuation is done by phases or as staggered evacuations. In “evacuation by phases” it is considered that the building would still be occupied for a considerable time while the fire is developing, and so higher fire loads must be considered and hence, a larger volume of smoke and hot gases. (These factors may vary considerably, depending on the type of material in combustion, the...

STANDARD EN 12101-6:2005 CRITERIA DIFFERENTIAL PRESSURE CRITERION SYSTEM CLASS Difference in pressure on both sides of the living quarters' door (final exit door open) Doors open (differential pressure criterion) / final exit outdoors Doors open (differential pressure criterion) / Floor on fire Doors open / Staircase - Lobby on floor other than the floor on fire Doors open / Floor on fire Doors open / No. of floors other than the floor on fire lt is not mandatory to pressurise the lobby if it only has doors connecting it with the staircase and floors.

STANDARD EN 12101-13:2022 TYPES OF SYSTEMS CLASS 1 SYSTEM AIR FLOW CRITERION SYSTEMS FOR SPECIFIC CASES DIFFERENTIAL PRESSURE CRITERION (ALL THE DOORS CLOSED) The class 1 system is installed in buildings with a high degree of fire protection, either through an automatic extinguishing system or an additional compartment to help contain the fire and/or the propagation of smoke towards the evacuation routes. 3 1 In these cases with an open door condition, such a high air speed is not required as is the case of buildings that are not equipped with these additional protection measures. Class 1...

STANDARD EN 12101-13:2022 CRITERIA CLASS 2 SYSTEM SYSTEMS FOR GENERAL CASES The class 2 system is applicable when applying a class 1 system is out of the question. Since the building is not equipped with additional fire protection measures that would help fight the fire and/or minimise the propagation of smoke towards the evacuation routes, the design hypothesis is based on considering a fire that is in full force, for which we must provide a higher air speed through the open door on the floor on fire. Class 2 is required: • When class 1 cannot be used; or • If required by competent...

STANDARD NFPA 92 CRITERIASYSTEM REQUIREMENTS When a staircase pressurisation system is installed, the differential pressure between the space on fire and the staircase, with the number of doors open simultaneously using automatic systems must be: • Not greater than the value to prevent opening the door applying a 30 lb (133 N) force in accordance with NFPA 101. • Not less than the next value in accordance with the height of the floor and whether or not sprinklers are installed. HEIGHT BETWEEN MINIMUM CEILING PRESSURE Without sprinklers The doors that are opened and closed by the occupants...