If you work with hydraulic equipment on a regular basis, you know that it can get loud! Loud equipment can be dangerous as well as annoying. If workers have any need to communicate concepts that can’t be expressed in hand gestures or signals during a job, they need to be able to hear one another over the noise of the machine. If they can’t, this might pose a safety risk. Plus, quieter equipment is just more pleasant to be around. Here are some tips for reducing the noise generated by your hydraulic parts.
If your system permits, you can reduce the noise in your hydraulic system by choosing a pump that runs at or below 1200 rpm. The faster your pump runs, the noisier it will be, and the more vibrations and fluid pulsations it will generate, leading to more noise in other parts of the system. So slower pumps tend to be quieter.
Mountings are sometimes among the most overlooked hydraulic parts in your system. When it comes to dampening noise, though, they are among the most critical parts to consider. By using anti-vibration mountings to secure your hydraulic pump, you can reduce the noise associated with the vibrations it generates. Remember that as soon as you install anti-vibration mountings for your pump, you need to change all your connecting hoses to flexible hoses. This will help dampen fluid vibrations coming from the pump and reduce vibration and noise in other hydraulic parts as well.
You can reduce noise even further by enclosing your hydraulic pump inside a heavy, non-porous shell. The shell will trap sounds and dampen them, resulting in quieter performance. Be sure to fit all connections with snug rubber gaskets to prevent hoses from noisily knocking against the enclosure as they draw fluids to and from the pump.
When air gets into your hydraulic fluid, your pump can get twice as noisy. Even worse, its lifespan will be decreased. There are several ways to reduce the chances of developing air bubbles in your fluids. For example, you can use short hoses and inflow lines with large diameters, keep the reservoir up higher than the pump, and make sure all your flow controls are working properly. You can also help bubbles to escape from the system by circulating your hydraulic fluid through a large reservoir with baffles.