Liquid filled pressure gauges are the cat’s pajamas. They are the bee’s knees.
There are a number of reasons why they are fantastic. To start with, the liquid inside dampens the effects of pulsation and pressure spikes, lubricates the gauge’s moving parts so that everyday friction is reduced, and helps prevent internal corrosion among other things.
One question that we occasionally hear from some of our customers is if it is normal and necessary to have are air bubbles in liquid filled pressure gauges?
The answer is yes.
It is normal and necessary for liquid filled pressure gauges to have air bubbles in them.
There is nothing wrong with the gauge, the air bubble is intentional.
The air bubble is needed for the purpose of dampening the internal pressure to ensure accurate readings. It is necessary for the air bubble to be there so that the gauge will work properly since air provides a cushioning effect for the gauge.
In fact, you should be worried if there isn’t an air bubble.
As always send us an email (Service@directmaterial.com) or give us a call (888-334-4339) if you have any questions about your gauges or other products.