Fire hoses have become increasingly popular since the beginning of modern-day firefighting. However, not all fire hose types perform equally well under certain circumstances.
The following selection parameters will help you determine what kind of fire hose would work best for your needs.
1. Fire Hose Diameter
The fire hose size refers to the inner diameter of the hose. There are different fire hoses, each having specific uses depending on size. Smaller firehoses are generally designed for small applications with a higher pressure level due to their smaller cross-sectional area. Larger firehoses are designed for larger applications with a lower pressure level. To use a fire hose properly and safely, it’s best to find out what size you are using before purchasing and then make sure that the hose that you purchase fits the hole that it is being sold for. A good way to check whether your fire hose will fit the intended application is to look at the manufacturer’s specification sheet on the product details page. If the hose does not match the specifications listed for the application, it is possible that it won’t work well, or worse yet, it could cause harm to your system if used incorrectly.
2. Water Pressure Rating
Fire hoses carry water under high pressure (typically between 50 and 200 psi). Therefore, they need to withstand these high pressures without bursting or leaking. That is why the water pressure rating on the fire hose is critical. These ratings vary depending on how the hose is constructed, and sometimes, the maximum pressure that can be tolerated by the hose varies based on certain conditions. For example, the fire hose may have a rated maximum operating pressure that changes based on the ambient temperature.
Another factor that affects the rated maximum operating pressure is the material that makes up the hose. There are three main materials that go into making up the construction of a fire hose: rubber, plastic, and metal. Each material has a different rate of deterioration when exposed to certain temperatures. Rubber requires a much lower temperature than plastic or metal to begin deteriorating. When choosing a fire hose, opting for materials that will last longer in harsh environments is best. Rubber, for example, lasts much longer in cold weather than plastic or metal.
Another important characteristic to consider when selecting a fire hose is flexibility. Most fire departments prefer flexible hoses for two reasons: First, they can bend around corners and curves easily; second, they provide maximum maneuverability while maintaining safety.
A final point to remember when choosing a fire hose is to get a fire hose that is compatible with the environment in which you intend to use it. Fire departments often require fire hoses to meet certain requirements, such as minimum burst pressures and tensile strengths. These requirements vary depending on the environment of use.
Types of Nozzles
The three primary types of nozzles are:
A fixed nozzle works great for applications that require consistent flow rates and distances. The nozzle maintains its position while spraying and doesn’t change direction. Because of this, there is less chance of getting a clog or blockage.
Variable nozzles are typically used for short-distance applications. An adjustable range of flow rates is achieved by regulating the opening size of the nozzle. Unfortunately, they are often unreliable due to their complex mechanical components.
If you want the water inside the hose and prevent it from flowing out, use the rotating nozzle.
Other Hose Types
Full block Hose
A full-block hose is constructed entirely with rubber and has no metal parts. A full-block hose may crack if the temperature fluctuates and may cause the hose to burst at high temperatures. It is best suited to residential use but may be used in commercial applications if the hose is protected with insulation.
Half block Hose
Half-block hoses have some metal components (usually brass) combined with rubber material. These hoses offer better durability than regular hoses, but they do not work well with smaller diameters. In addition, half-blocks can get damaged easily after being outside in hot weather.
Tubing hoses are constructed using only copper tubes. Tubing hoses are much stronger than regular hoses and withstand extreme temperatures. However, tubing hoses are thicker than half blocks and less durable.