Industrial and residential customers globally use hoses for a number of applications. From hydraulic hoses connected to industrial equipment to garden hoses that someone will use to water their flower bed, having the right type of hose for the task at hand is critical to getting the activity done.
When you build a hose, you want to create the highest quality work so that the hose does not break during use. This means using the right material for the hose as well as the right ferrules used to connect the hose to the engine pipe or to any other length of hose.
Types of Ferrules
The most common types of ferrules you’ll see on the market are made of three different metals: brass, aluminum, and stainless steel. These ferrules are commonly found in compression fittings or couplings for pipe work attachments in the plumbing industry as the ferrules will have both male and female fittings to create a solid seal. For hose applications, you may find different metal ferrules in the following hose types:
Steel ferrules in automotive hose
Brass ferrules on water heater hose
Aluminum ferrules on fire hose
You can also find brass ferrules on welding hoses and steel ferrules on hydraulic hose systems. What the hose will be used for, the length of the hose, and the size of the ferrule can help you decide what type of metal to use when making the hose.
Brass Ferrules or Aluminum Ferrules?
Debate always arises on the type of metal used for ferrules. Is aluminum stronger than brass? Will brass rust? Which metal is cheaper to use?
While metal pricing will depend on your company’s budget and manufacturing capabilities, you can help with the decision-making process by basing your choice in advance on the type of hose you will be manufacturing. Are you making a water hose or an air hose? If the hose you are making is for air, most manufacturers will use an aluminum ferrule for the application. For water hoses, people usually choose brass ferrules.
What happen? Although brass or aluminum does not rust when in contact with water, it does oxidize. Oxidation is a kind of protective mechanism in this metal. This will create a type of scaling and staining on the metal. When brass is properly sealed with a protective coating, it can resist oxidation and last for a very long time. Even when oxidized, brass will last a long time before eroding.
Some aluminum alloys do not have the same yield when in contact with water, because the layered oxidation causes erosion that damages the metal permanently. If you must decide to use aluminum for the ferrules, then you need to use anode aluminum that can handle both fresh and saltwater applications as corrosion rates slow down.
The shape and length of the ferrule can also be a factor. Aluminum ferrules range in length from 0.500″ to 0.968″ and can be smooth cylindrical. Brass ferrules can typically range from 0.500″ to 1,000″ and are available in a variety of shapes such as oval, ribbed, smooth and drenched.
Choose the Right Ferrule For Hose Application
Again, it cannot be stressed enough that making your decision on brass or aluminum ferrules should be based on the type of hose you are making and what it will be used for in an industrial or residential application. Make your decision about what to pass through the hose and the type of seal you want to choose the best ferrule for your needs.