The integrity of a hose is only as good as the clamps with which it’s used. Hoses typically carry fluids like coolant or oil. When heated, these fluids will expand, thereby pressurizing the hose. Low-quality or poorly installed clamps may cause the hose to pop off and leak fluid. Below are five mistakes to avoid when using hose clamps.
#1) Choosing the Wrong Size
Don’t make the mistake of choosing a hose clamp in the wrong size. If a hose clamp is too small, it may not fit around the hose. If it’s too big, it may fit loosely while failing to create a consistent seal. Most hose clamps are designed for a specific size range, such as 1.5 to 2.5. As long as the diameter of the hose falls within this range, the hose clamp should fit.
#2) Assuming All Hose Clamps Are the Same
Not all hose clamps are the same. While they are all designed to seal the end of a host around a fitting, they are available in different types. Worm gear clamps, for instance, consist of a band and screw. As you turn the screw, the band will tighten. Spring clamps, on the other hand, use constant tension. They are typically made of spring steel. When placed over a hose, the spring steel will exert a spring-like force.
#3) Overtightening
Overtightening is a common mistake to avoid with hose clamps. When installing a hose clamp, you’ll need to tighten it around the hose and fitting to create a strong seal. Tightening the hose clamp too much, though, may damage the hose. The clamp may cut into the hose, especially if the hose is made of a soft material like rubber or silicone. And once the hose is damaged, it will no longer maintain pressure.
#4) Under-Tightening
Under-tightening can prove equally problematic when using hose clamps. Clamps, of course, secure hoses to fittings. If you under-tighten a hose clamp, the hose will fit loosely around the clamp. It may appear okay at first, but as soon as the hose becomes pressurized, it will likely pop off the fitting.
#5) Ignoring Material Compatibility
Don’t ignore material compatibility when using hose clamps. Hose clamps are available in a variety of materials. If you’re planning to use it in a humid environment, you should opt for a corrosion-resistant material, such as stainless steel, zinc-plated steel and aluminum. You should also consider the risk of galvanic corrosion. If the hose clamp comes into contact with a dissimilar metal, galvanic corrosion may occur.
