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Before new couplings are launched, we conduct extensive market research to evaluate the lifespan of every new coupling. Product manufacturing processes are tested and optimized on a small scale before couplings are transferred to our production plants.

The experience we gain from pilot and full-scale production testing makes a valuable contribution to our ongoing Research and Development program.

Our engineering team uses the latest standards and leading-edge 3D measurement technology to develop, design and manufacture perfect couplings. Product quality is checked using a battery of in-house testing facilities:



To test the material composition of a coupling, an in-house spectroscope is used. A spectroscope measures the precise material substances of the tested material.  We can guarantee our customers that the materials used comply with the relevant standard.


3D measuring technology

Our high-technology measuring system checks that the dimensions of our couplings comply with the relevant standard. Although ordinary measuring systems are unable to give precise measurements, our measuring system is able to measure the less accessible parts and shapes. This minimizes inspection times and ensures the highest levels of product quality. ______________________________________________________________________________________

Digital microscope

Thanks to the digital microscope of the Insize ISM-PN200S the targeted inspection area can be enlarged by 200.  It's an easy and effective tool to compare one to one the sharpness of angles, the wall thickness of couplings and hoses etc.  Once the investigation is done, the results can easily be saved and sent by mail.

Water & air pressure testing

Although our couplings are used for working pressures up to 25 bar we are able to provide water testing facilities up to 3000 bar.  Pressure testing is executed by certified and experienced personnel under the highest safety conditions.


Impact testing

Some of the industrial couplings, like TW and Guillemin tankwagen couplings are affected during handling.  A fall of a heavy hose assembly on the ground or an impact on the locking system of the coupling during handling are affecting the body strongly.  Material strength is in-house tested using several types of impact tests. 



To guarantee interchangeability among couplings some European standards, like EN 14420, prescribe the use of standardized gauges.  LMC-Couplings uses gauges at random as a quality meaasurement system at several production stages, in our production plants, on arrival in our warehouse and before goods are shipped to our customers. _______________________________________________________________________________________


To check the right compression set of a seal we use durometer testing equipment at various check points in our production. The right compression set of a seal is an important contribution to the quality of a seal and couplings connection.


Microbiological cleanliness and particle control is of the greatest importance in industrial applications like semi-conductor manufacturing, pharmacy and biotechnology. The inner surface roughness for LMC's Triclamp couplings are standard machined to Ra 0,4 - 0,8 µm.