Title: A scientific guide to the purchase of closed sprinklers.
In fire safety, the performance of the closed sprinkler head, as the core component of the automatic sprinkler system, is directly related to the effective control of the initial fire and the safety of personnel evacuation. Here are the key issues you should pay attention to when choosing a closed type printhead:
1.*Type Selection**: According to the use environment and fire risk level, different types of closed sprinklers such as wet, pre-action or dry are distinguished. For example, wet sprinklers are suitable for general civil buildings, while pre-action sprinklers are suitable for places where water loss is not allowed.
2.Operating Temperature Range: Ensure that the selected sprinkler can function normally in a variety of temperature conditions that may be encountered in the installation area, such as a 68 operating sprinkler in a residential area, and a 93 lance in an industrial area.
3.*Response Time Index (RTI)** According to the fire resistance level of the protected object and the fire extinguishing needs, the corresponding RTI value is selected, for example, the rapid response sprinkler (RTI 50) is usually used in commercial spaces to control the fire faster.
4.Nozzle aperture and flow coefficient (kv)** Reasonably match the nozzle diameter and flow coefficient to ensure that enough water is sprayed at a certain pressure to effectively cover the protected area.
5.*Quality certification**: When purchasing, be sure to pay attention to whether the product has passed the certification of a nationally recognized quality inspection agency, such as GB, EN and other standard certifications to ensure the safety and effectiveness of the product.
In short, when purchasing a closed sprinklerhead, it is important to consider factors such as the actual application environment, design specification requirements, and product quality to ensure the reliability and effectiveness of the fire protection system.