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Zaxis Leak Tester integrated into a customer robotic application

See how one customer integrated a Zaxis leak tester into a robotic application? Zaxis leak testers are configurable, accurate and repeatable. Perfect for quality leak testing in the manufacturing process for a variety of applications.  

Speak to one of our sales engineers today about your application and how we can help ensure your production process is producing only the best.

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Zaxis Isaac HD Multifunction leak tester
Isaac HP Leak Tester

Leak Testers

The modular design of leak testers allow us to fit a variety of applications.

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Zaxis Precision and People.

Here at ZAXIS we have been designing and building precision leak testing equipment for over 20 years. As a result of all those years we understand that our high-quality customers are just as important as our high-quality products. We are problem solvers at heart and for that reason we have innovated some of the world’s leading leak testing and dispensing equipment around.

Our company is just big enough to make a dent in the world and just small enough to remember where we came from and what we stand for. Consequently, we have been able to maintain relationships with manufacturers big and small for years and years. Above all, we are grateful for all of the loyalty and friendship and will continue to put your needs as our top priority. We are always here to help and can’t wait to see our new customers join our growing family here at Zaxis.

Zaxis Occlusion Testing

Zaxis Occlusion Testing

Occlusion testing checks for blockages (or occlusions) in test parts. Measuring the air flow through the test part determines whether the test part is blocked. 

General techniques for identifying occlusions/blockages 

Several techniques are used to identify occlusions/blockages in test parts. These techniques include: 

  • Air flow occlusion testing 
  • Back pressure occlusion testing 
  • Pressure drop occlusion testing 

Air Flow Occlusion Testing 

In this method, the test part is pressurized to a predetermined target pressure. After the target pressure is reached, the flow sensor records the flow rate of air through the part. If the flow rate is below the set limit a blockage is present, and the part fails the test. If the flow rate is greater than the set limit at the desired pressure, the part passes the test. 

This technique is often used to identify blockages in open terminal test parts such as medical catheters or refrigeration tubing.  

Back Pressure Occlusion Testing 

In this method, a test part is pressurized to a specific flow rate and air pressure in the part is measured.  Since more pressure is required to force air flow through the test part with a blockage, the test instrument measures this input pressure to determine a blockage. If the required input pressure exceeds the acceptable set limits, the part is occluded and fails the test. 

Pressure Drop Occlusion Testing  

In this test method, the test part is pressurized and then vented through a downstream port and pressure loss is measured.     

The test part is pressurized for a set time to reach a target pressure. After the fill time is complete, the system moves on to the measurement step where the downstream port is opened to vent and there is a drop in pressure. If the pressure drop reaches the predetermined minimum pressure drop value, the test part is considered non-occluded. If the pressure drop is less than the minimum pressure drop value, the part is occluded and fails the test. 

The iKit, Isaac HD, Zaxis PD, and Zaxis 7i testers are capable of air flow occlusion testing, back pressure occlusion testing and pressure drop occlusion testing to test parts for occlusions. Zaxis’ line of  instruments can be used to reliably detect occlusions in catheters, IV sets, tubing, and check valves. 

To find the right occlusion test and the right instrument for your specific application, contact Zaxis to discuss your project.  

Contact Zaxis Today!

The figure below illustrates the process of a pressure drop occlusion test: 

Occlusion leak test graph

Figure 1. Zaxis Occlusion Test. 

Built for You

Contact us today to find the right solution for your needs.

Leak Testers

The modular design of Zaxis leak testers enables us to meet the demands of a wide variety of applications.

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Medical Manufacturing Solutions

We have leak testing solutions for multi-lumen catheters, IV sets, implantable devices and much more.