KUNZ Plug Tester

KUNZ Plug Tester

Key Tasks

Testing of overinflation plugs and thermal relief plugs on aircraft wheel assemblies
Quadrupling shop compressed air pressure to the required test level – no nitrogen bottle needed
Selectable P/N Mode (CMM-compliant testing) and Manual Mode (flexible testing)
Improves workshop HSE by eliminating the need for high-pressure nitrogen cylinders

Overview

The KUNZ Plug Tester is a dedicated tool for the testing of overinflation plugs and thermal relief plugs on aircraft wheel assemblies. These plugs are safety-critical components that must be regularly tested to ensure correct function in service.

The KUNZ Plug Tester amplifies standard shop compressed air pressure by a factor of four, reaching the test pressures required for CMM-compliant plug testing – without the need for a high-pressure nitrogen bottle. This significantly improves workshop HSE by eliminating the handling of pressurised gas cylinders.

The tester offers two operating modes: P/N Mode for part-number-specific CMM testing, and Manual Mode for flexible testing applications. Both modes are selectable directly on the unit.

Main Benefits

Eliminates the need for a nitrogen bottle – improved workshop HSE and reduced handling risk
Uses shop compressed air – amplified fourfold to reach required test pressure
P/N Mode for CMM-compliant, part-number-specific testing
Manual Mode for flexible, non-CMM testing applications
Dedicated solution for overinflation plug and thermal relief plug testing
Compact and easy to use – no specialist training required
Reduces infrastructure requirements in the workshop

CMM-Compliant Plug Testing – Without the Nitrogen Bottle

Testing overinflation and thermal relief plugs to the correct pressure specifications is a mandatory maintenance task – but doing it safely and conveniently has traditionally required the use of high-pressure nitrogen bottles.

The KUNZ Plug Tester changes this. By amplifying standard shop compressed air to the required test pressure, it delivers CMM-compliant results without the HSE risks and logistical burden of nitrogen cylinder handling. The result is a safer, simpler and more efficient plug testing process.

KUNZ Plug Tester | Testing of safety valves on aircraft wheels

Two Modes for Maximum Flexibility

The KUNZ Plug Tester offers two operating modes to cover all plug testing requirements:

P/N Mode enables part-number-specific testing in strict accordance with the aircraft manufacturer's CMM, ensuring fully compliant results for every plug type.

Manual Mode provides flexible, free-pressure testing for situations where CMM-specified parameters are not required, giving the operator full control over the applied test pressure.

Product Information

Dimensions

Dimensions (L x W x H) in mm (in)

820 (32) x 510 (20) x 567 (22)

Empty weight in kg (lb)

60 (132)

Weight with water in kg (lb)

76 (168)

Capacity of water tank in L

Electrical power requirments

The KUNZ Plug Tester comes with a factury set power requirement of 50/60 Hz, 230V 1-phase, 16 ampere fuse However, we will always need to know your local power requirements in order to check for compatability. In general, your local power requirements will always be available with KUNZ machines in return of extra costs.

Features

For testing of overinflation plugs and thermal relief plugs
Shop compressed air will be quadrupled for testing
Improved HSE as no nitrogen bottle needed anymore
It is possible to change between “P/N-Mode”, for CMM testing, and “Manual-Mode” for flexible testing

Part Numbers

KUNZ Plug Tester: 236.0000

Product Updates

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