Four Tips to Help You Choose a Drift Eliminator for Your Cooling Tower
Drift eliminators are important parts in a cooling tower. They prevent the loss of water that may carry chemicals or minerals into the atmosphere and direct mist or droplets back into the cooling tower. Drift eliminators accomplish this feat by making mist and water droplets change direction and lose velocity as they attempt to leave the tower.
When buying this spare part for your cooling tower, there are several things you should keep in mind:
1. Remember that different materials offer different advantages.
Ultimately, the material you choose for your drift eliminator depends on your main objectives for the eliminator. If you want maximum corrosion resistance, you may want to opt for a PVC or stainless steel drift eliminator. However, if strength and rigidity are your main concerns, you may want to look into galvanised steel.
2. Think about compatibility.
If you choose a drift eliminator that is not necessarily designed to work with the type of cooling tower you have, you need to make sure that it can be compatible with your tower. To that end, look for drift eliminators that have kits that allow one material (such as PVC) to fit with another material (such as steel).
Alternatively, look for drift eliminators that can be cut in the field so that they fit around columns or into small spaces. Keep in mind when you cut some drift eliminators that it may threaten their structural integrity, so if the drift eliminator is not the exact size you need, you have to ensure that it can be cut without hurting it.
3. Find drift eliminators that snap together.
In some cases, you may need to fit several drift eliminators into the same space. In that case, look for modules that nest or snap together. That eliminates gaps that may allow water droplets to escape. Talk with a cooling tower spare parts experts to determine whether or not the drift eliminators you are looking at work in conjunction like this.
4. Match the air velocity of your cooling tower.
Finally, make sure that the drift eliminator you select is poised to work with the air velocity used by your cooling tower. Ideally, you want a drift eliminator with a relatively low pressure drop that can withstand high air velocities. If your cooling tower has more velocity than your eliminator can handle, the grate may get distorted, move out of place or not work correctly.