You’ve just bought an instrument, just installed it or it is in service for a long time. But who is going to do the maintenance and calibration, or when needed any repair? And who is going above and beyond by instructing the users or delivering training? And who is going to advise on maintenance that can be planned accordingly?

That is value that AddValue Instruments B.V. can provide. For an old ultrasonic flare flowmeter from say 1995, an AlOx moisture device of 5 years old, or a brand new paramagnetic oxygen analyser or TDLAS moisture meter, the AddValue specialists can take care of that for you.


AddValue Instruments was founded only in 2016. So it seems fairly new, but with over 35 years of shared experience of the technicians. Read more...


Maintenance, calibration and validation

Start-up an commissioning of new equipment. Maintenance, calibration and validation of existing equipment and Flare Gas Validation (GE certified).

Product and application training

Product and application training.

Technical support

Revisions, pre commissioning and commissioning, sale of parts and replacement equipment, rental of portable liquid flowmeters PT878 and Man and Machine.


Flow meter assembly and independent lab calibration and consultancy.


In the Benelux and outside we serve customers in the chemical and petrochemical business, energy sector, waste industry, offshore production, pharma and many more...