Maintenance of fire extinguishers is crucial to ensure their effectiveness in the event of a fire. Professional maintenance includes mandatory annual inspections, recharging, and hydraulic tests (as needed).
Checking for external damage: Looking for signs of physical damage, corrosion, or wear on the body, valve, hose-nozzle, and all components.
Checking labels and instructions: Ensuring that the operating instructions are legible and securely attached to the extinguisher.
2. Weight Check : Weighing the extinguisher to ensure compliance with standards.
3. Checking all components of the fire extinguisher
4. Checking the condition of the pressure indicator (for all extinguishers with a gauge)
5.Ensuring the pressure reading is correct and that the gauge or indicator is within the operational range. For extinguishers with a gauge, the needle should be in the green zone.
6. Checking the hose and nozzle: Checking for blockages and cracks: Inspecting the hose and nozzle for blockages, cracks, or any damage that could impair proper functioning and prevent potential accidents when using a device with a faulty spare part.
7. Checking and replacing the seal between the body and the valve (o-ring) as needed, and securing the safety pin with a safety catch.
8. Placing a service label in accordance with regulations, with all performed activities listed.
9.Compiling documentation and a protocol from the inspection with serial numbers of each tested device, the date of inspection, and the initials of the service technician who performed the maintenance.
The annual inspection by Deni Fire can be performed on-site at our stationary service center or through our equipped mobile services at your location.
Recharging with extinguishing agent is performed only when needed after technical servicing, once the device has been used or if it is found that the agent has lost its extinguishing properties. The extinguishing agents used by Deni Fire are of the highest quality, ensuring long life and eliminating the need for annual recharging.
1.Emptying the fire extinguisher container: Complete removal of the remaining extinguishing agent to ensure that the container is completely empty.
2. Cleaning: Internal and external cleaning – Cleaning the inside of the cylinder to remove all residues or accumulations of the extinguishing agent, as well as cleaning all spare parts.
3. Recharging with extinguishing agent: Adding agent: Recharging the fire extinguisher with the appropriate extinguishing agent (e.g., water, foam, powder, CO2, and other specific agents).
4. Repressurizing the fire extinguisher: Charging the fire extinguisher with propellant gas to the manufacturer’s recommended pressure level using a specialized machine.
5. Sealing and marking: Placing a new o-ring, new safety device, and updating the maintenance label to document that the recharge has been performed.
6.Applying information about the used extinguishing agent for each fire extinguisher in a protocol with its serial number to create a flawless service history.
Recharging of fire extinguishers with extinguishing agent by Deni Fire can be performed in our stationary service center or in our equipped mobile services at your location. Each mobile service of our company is equipped with machines for necessary tests and automated dosing of extinguishing agent.
The hydraulic test, also known as hydrostatic testing, is necessary to ensure the integrity and strength of the extinguisher’s cylinder. This test is usually conducted after the first 10 years from the manufacture of the container, depending on the type of extinguisher or indications of a defect.
1. Pre-test check: Visual inspection: Checking the fire extinguisher for visible signs of damage or corrosion that could affect the test results.
2. Emptying the fire extinguisher container: Completely emptying the extinguisher and removing all internal components.
3. Filling with water: Filling the cylinder of the fire extinguisher with water in a test environment. Water is used because it is non-compressible and provides accurate test results without the risk of explosion.
4. Applying pressure: Applying high water pressure to the cylinder, typically about 150% of the fire extinguisher’s operating pressure, using a hydraulic pump. This pressure is maintained for a certain period to test the cylinder’s strength and leak resistance.
5. Checking for leaks and deformations: Detailed inspection: Checking for any leaks, bulges, or deformations in the cylinder walls. If defects are found, the cylinder is discarded and taken out of service.
6. Drying and reassembly: Cleaning after the test: Draining the water, controlled mechanical drying of the cylinder, recharging with extinguishing agent, and reassembling the fire extinguisher with its components.
7. Documentation and marking: Updating documentation and maintenance protocol with details about the hydraulic test, including the date and results, and placing a new test label on the fire extinguisher.
Hydraulic testing of fire extinguisher cylinders is performed only in the test center attached to our stationary service base. If hydraulic testing of cylinders is needed during mobile service maintenance, your devices are transported at our expense to our test base and returned to your site within the agreed period. Deni Fire can provide replacement fire extinguishing equipment during the period required for testing to ensure your property remains equipped with necessary fire safety equipment.
By following the described protocols for professional maintenance, it can be ensured that fire extinguishers function effectively, enhancing safety and compliance with fire safety regulations.
