We are able to calibrate the following Kral products: Kral Flowmeter Liquid OME320401575B Flowmeter OMG100-0120 Flowmeter (liquid) OMG13.60187 Flowmeter (liquid) OMG20 Flowmeter, Positive Displacement OMG32 Flowmeter, Positive Displacement OMG52 Flowmeter, Positive Displacement OMG52.60102 Flowmeter Liquid Z583V Flowmeter, Air Please call us on +44(0)1159 003550 or email calibration@hydrotechnik.co.uk to discuss your requirements. Search for manufacturers of other instruments we can calibrate