It has been determined by the US Dept of Defense that companies like A-VAC, SpaceX, NASA, and others, being critical to our Nation’s infrastructure, must remain open and operational. A-VAC takes this responsibility seriously and will continue providing all critical support and services.


Log In

My Cart

5 Tips for Purchasing a Leak Detector

Helium Leak detectors are one of the best ways to trace gas and locate unwanted leaks.  This is why when it comes to purchasing new equipment, like a helium leak detector, it’s always important to do the necessary research. This helps you feel confident in your final purchase, leaving you happy and satisfied with your final purchase.

Here are 5 Tips for Purchasing a Leak Detector

  1. Roughing Pump Size- This is an important aspect to look at if you need to evacuate a volume to begin the leak check. All systems have pumps already built in to handle the evacuation, but it is important to purchase a system which includes the correct sized pump for your application. Too small and you can’t test, too big and you spend too much.
  1. Finding a reputable brand- There are many different brands and models. This is why when purchasing a helium leak detector it is important to buy a trustworthy brand. Choose a model that has a long history of helium leak detection. Looking at reviews is always a good idea too. If the company is known for making below average vacuum equipment, don’t expect the same parts to work any better than the leak detector. Always evaluate the service of the business and their network.
  1. Ease of maintenance- Your leak detector should be easy to maintain so it doesn’t consume your time. Tools should not be required to take off external parts for maintenance. The air filters and pump oil should be able to be easily exchanged. Source assemblies must be easy to access.
  1. Helium Pumping Speed- This is an important aspect to investigate when purchasing a leak detector. If a leak is detected, using helium, a fast pumping speed is what you want. The advantage of a high speed pump is that it enables a faster detection of the smallest leaks which improves your testing all together. Always take into account helium pumping speed when comparing two different models.

  2. Multiple Gas Detection Functions –Your helium leak detector should have the option of detecting hydrogen as well as helium by the standard vacuum method. Though not often used, having multiple gas option is a nice feature.