Krympress reports:
Valve xid (the discharge of excess pressure) is the most important element of the gas fire extinguishing system, which provides a safe reduction in pressure in the protected room at the time of the installation. Its task is to prevent the destruction of the enclosing structures and equipment as a result of a sharp jump in pressure. Despite the apparent simplicity, the installation of valves of the Xid requires accurate compliance with the norms, and in practice, errors are often allowed that can turn into serious consequences.
Error No. 1: Incorrect calculation of the number of valves
One of the most common problems is to install an insufficient number of valves or models with low throughput. This leads to the fact that when the system is triggered, excess pressure does not have time to dump in full, and a critical load is created in the room.
What to do: The calculation of the valves of the Xid should be carried out at the design stage, taking into account the volume of the room, the gas supply speed, such as fire extinguishing and the tightness of the structure.
Error No. 2: Valve installation in the wrong zone
Often the valves are installed too low, too high or in the corner of the room where the free gas output is difficult. Incorrect placement reduces the effectiveness of the discharge and can lead to local excessive pressure.
What to do: The valves should be mounted in the upper third of the wall, closer to the ceiling, where the main pressure zone occurs at the time of operation.
Error No. 3: Using valves without certification
Some customers or contractors save on equipment and purchase valves of dubious origin. Such products do not undergo a GOST check for compliance and may not work at a critical load.
What to do: Use only certified valves xidadmitted to use in fire protection systems.
Error No. 4: Lack of tests after installation
After installation, the system is often not tested in full. This leads to the fact that design or installation errors are found only in an emergency.
What to do: Carry out the testing and configuration of the valve as part of the entire system. The check should include the modeling of pressure supply and control of the valve reaction.
Error No. 5: Installation in an impenetrable room
In the absence of ventilation, the valve drops the gas inside adjacent spaces or into the room where people are located, which creates a health danger.
What to do: Provide the direction of discharge of gas into a safe area, or use a valve with an external emission.
Result
Correctly installed valve xid — This is the key to reliable and safe operation of the gas fire extinguishing system. Installation errors can not only negate the efficiency of the entire installation, but also create a threat to the staff and construction of the building. To avoid this, the installation must be performed by the project, with the participation of qualified specialists and the use of certified components.
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