Because flow indicators typically only use a mechanical means to indicate flow and no electrical components are part of the device, most any liquid flow indicator can be used as a liquid fertilizer flow indicator as long as the liquid characteristics are taken into account. Certain indicators will not tolerate particulate matter or higher viscosity liquids very well. Because of the corrosive nature of liquid fertilizer, flow indicators made of stainless steel are usually recommended, although the chemical composition of liquid fertilizer can vary, and a flow indicator should be specified for the exact composition of the fertilizer.
Because liquid fertilizer can also accumulate build up on the sight glass, our unique model DAA Sight Glass Flow Indicator with an integral cleaning mechanism, which does not require system shut down or device removal for cleaning, delivers an extra value for liquid fertilizer.