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Diaphragm leakage detector
DKM provides many accessories around the pump : pulsation dampeners, double diaphragm shock absorber, check valves, diaphragm leakage detector, remote control actuators and frequency inverters.
DKM, which first filed in 1971 for a patent on a diaphragm leakage detector, has since measured the limits of this system, particularly for thick or viscous liquids.
To supplement its product offering, DKM has now developed a system for detecting such rupture based on the variation of the resistivity of an intermediate safety liquid.
A probe is implanted in the intermediate plate, which enables, with its associated electronics, measuring the resistivity in real time.
A threshold alarm incorporated in the electronics monitors the variations of this parameter. The only role of the intermediate liquid is to hydraulically transmit the diaphragm movements. The resistivity threshold is adjusted on the latter.
Pollution of the intermediate liquid by diffusion through, perforation, or destruction of the process diaphragm leads to variation of its resistivity. This fact is immediately detected by an alarm module, whether the resistivity has decreased or increased.