How to Prevent Premature Blast Hose Wear and Coupling Damage

Today we’re going to talk about problems that people have with worn blast hoses inside their grit rooms, and common problems that you can overcome to make sure they don’t wear prematurely. We’re also going to look at what you should check on a daily basis to make sure they’re not failing.

One of the first things we’re going to do, which is really important, is properly connecting them. We’re going to look inside the coupling and make sure that we have no worn areas in the coupling rubber or gasket. We also need to make sure that the screws holding the coupling on do not penetrate the inner lining of the blast hose. If they do penetrate the inner lining of the blast hose, your coupling will wear prematurely.

Another thing that happens quite commonly is that a blast hose may kink very easily. This is a good sign that your blast hose is starting to wear. Sometimes blasters have the hose bent while blasting, and this becomes a wear point on the blast hose.

Another important point is that you should always run your blast hose as straight as possible, without any kinks or bends in it. If you have 40 meters of blast hose and only need 20 meters, take one line off because you only need 20. Otherwise, the first 20 meters may end up curled on the ground, creating a wear point that will cause the blast hose to wear prematurely.

So remember to check your couplings and coupling gasket. Check that the screws in your coupling do not penetrate the inner lining of your blast hose. Also inspect your blast hose to see if it is kinking prematurely.

Other things you can do if you think spots are wearing on your blast hose include walking along it and applying pressure with your feet. In some areas the blast hose will feel quite firm, but in other areas, probably near the coupling or on a bend, it may feel much softer.

Make sure you carry out your daily and weekly checks so your blast hose doesn’t wear prematurely.