Wall hydrants are serviced regularly. But how can the functionality be tested without putting the building under water?
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Wall hydrants are used to fight incipient fires. They are designed so that both laymen and firefighters can use them to extinguish fires. The maintenance of wall hydrants is mandatory. But how can the functionality be tested without putting the building under water? We give you an overview of essential specifications, deadlines and procedures.
Wall hydrants are basically used for initial fire fighting. There are two types:
Wall hydrants obtain firefighting water with the help of firefighting water supply systems. These extinguishing water supply systems are often located in the basement or at ground level in a building and are either connected to the public water network or are supplied with sufficient extinguishing water by a storage tank filled with water. The extinguishing water system has special pumps that ensure that sufficient extinguishing water reaches the wall hydrant even on the top floor.
Wall hydrants where the lines are constantly filled with water are serviced at least annually. Wall hydrants with dry risers must be maintained every 2 years. The basic principles are DIN EN 671-3 and DIN 14462. In addition, the manufacturer's specifications and the state of the art must be observed. The following is inspected:
After every five years, hoses and water-carrying reels should be stressed with the highest permissible operating pressure. When measuring the pressure, a special water barrel is used where the water is collected. This keeps everything clean and dry during maintenance of the wall hydrant.
A visual inspection by the operator is required at regular intervals, but at least every six months. The operator is responsible for determining the inspection intervals on the basis of a hazard analysis and findings from previous inspections.
At the end of the maintenance, our CWS service technicians seal the connection devices and stick the maintenance certificates in a clearly visible place. These labels show the inspection date and the expert number of the CWS service technician. Of course, we make sure that the wall hydrants and risers are correctly labeled.
In addition, DIN 14462 requires a maintenance report for wall hydrants. This documentation is needed, for example, for presentation to property insurers and expert inspections.
The maintenance report should include the following:
In addition to maintenance, some state building codes require a periodic inspection by an expert approved by the building authorities. For CWS Fire Safety customers, we prepare the appointment; our local and expert CWS service technician accompanies the expert. In connection with the wall hydrants, we also service additional components, for example pressure boosting systems and filling and draining stations. This service from a single source reduces effort and costs.
The quality of wall hydrant maintenance is largely determined by the qualifications of the personnel performing the work: We gladly share this statement of the VdS. Maintenance, repair and testing of wall hydrants belong in the hands of qualified experts!
According to the Ordinance on Industrial Safety and Health and the Technical Rules for Industrial Safety and Health, only experts or qualified persons may perform this task. Qualified persons must be appropriately trained and experienced. Our CWS service technicians meet all the requirements.
Either way - with regular maintenance of complete wall hydrants by our CWS service technicians, you are regularly on the safe side. CWS Fire Safety is your reliable companion in all fire protection issues
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