Leakage test | NONNENMANN

Check tools for tightness

Detect leaks immediately and avoid downtimes!

Leakage test

Detect leaks early and avoid expensive production losses and downtimes.

Avoid leakages

The leakage test is used in new tool making as well as during the tool life cycle.

Application in new tool making:

Quality assurance of individual assembly steps

Application in the tool life cycle:

Integration of the leak test into the standard maintenance cycle

Ideally, tools are always checked after production has been completed and before they are put into storage

At the latest, however, before the next renewed set-up process for a stable production process

Check temperature control circuits for leaks

Product properties

Efficient testing with compressed air in just a few minutes.

Test medium: compressed air, 3 - 4 bar are sufficient

Testing time: approx. 60 seconds (per circuit)

Tightness of the system can be directly read off the pressure gauge

Only compressed air connection with conventional compressed air pistol required

Easy application due to integrated quick coupling

Reliable test results ensured by self-testing

Easy handling

Safe, clean and fast.

Plug the air intake side to the channel input

Connect the drain side to the channel output

Build up test pressure with compressed air pistol

Pressure of 3 -4 bar is sufficient

Observe the pressure value at the manometer. Pressure drop = there are leaks

Test time per channel is approx. 60 seconds

To end the test, open the valve on the discharge side

Testing of tools

Self examination

Versions and scope of delivery

Delivery in a practical wooden box.

Product versions:

Nominal diameter: 6mm (article no. FL46500) or 9mm (FL46501)

Other profiles available on request

scope of delivery:

1x inlet side with pressure gauge

1x drain side with valve

2x double nipples (for hose testing)

1x operating instructions

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Scope of delivery leakage test in practical wooden box

Frequently Asked Questions About Leakage Testing

A maximum of 4 bar is sufficient for a reliable test using compressed air.

The larger the volume of the circuit being tested, the longer the test cycle should be. For a volume of 120 cm³, a test time of approximately 60 seconds is sufficient. As a guideline: a volume of 120 cm³ corresponds roughly to a 4-cavity mold with 130 mm x 130 mm inserts and conventional 8 mm bores on a single plane.

Testing with compressed air is cleaner and faster than previous testing methods using a water pump. Air has a viscosity 20 times lower than that of warm water (80°C). Therefore, longer test times are no longer meaningful. Due to air’s higher viscosity, leaks would be detected that remain undetected when tested with water.

To occasionally or as needed check the device for tightness, simply connect the inlet and outlet sides using the supplied double nipple. Close the valve and blow in compressed air. Due to the small air volume, a test duration of about 30 seconds is sufficient. This ensures a functional product and reliable test results.

Thanks to the integrated quick couplings, the device can be easily used for all common profiles. We provide the test device suitable for your required coupling series in different nominal sizes. Tools with multi-couplings can also be checked. Simply connect one channel at the inlet and outlet with the test device and bridge the other channels. Then the leak test can also be carried out as with the mono connections.

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