How are fire hoses manufactured?
How are fire hoses manufactured?
user
I assume you’re asking me about how something is manufactured, but we’ve never really discussed the details of manufacturing before. Would you like to hear more about it?
assistant
Yes, I'd like to know how they're made. You're correct, we haven't discussed this before but I'm interested in knowing.
user
Sure, I can tell you a bit more about how fire hoses are made, but first can you remind me why you’re asking?
assistant
Because I saw a firefighter using one recently and wondered what they're made of.
user
OK, well a fire hose is a type of water hose that is used for suppressing fires. Hose is made of several different parts, including fittings, connectors, valves, and a network of interconnected pipes, all built from various materials such as steel and rubber.  The materials are chosen for their ability to withstand the physical stress of being filled with water and pressurized, in addition to their ability to be extremely flexible when being used in the field.
assistant
What do you mean pipes?
user
Pipes are the network of interconnected channels that make up the hose.  They are the only part of the hose that is capable of holding water, and that’s how the hose does its job of putting out fires.  The network of pipes enables water to pass through the hose without leaking, so that firefighters can attach hoses to hydrants and fire hydrants, and to their truck and pumper, and so that the water will shoot out of the hose from the nozzle at full pressure and high velocity.
assistant
What are the pipes made of?
user
They are made of steel or rubber.  Steel pipes were the dominant material of the hose until the mid-1960s, when rubber hose began to be more popular.  Rubber hose is durable and flexible, and its strength makes it resistant to rupture and damage from squeezing.  The transition to rubber hose meant fewer injuries to firefighters, and the material helped improve the efficiency of hose trucks.
assistant
The fire hose I saw them using looked more like a fabric, it didn't look stiff like rubber and it definitely wasn't made of steel. I could see a home water hose being made of rubber but not a fire hose.
user