DEF crystallization can occur when the urea solution dries, freezes, or is exposed to air for prolonged periods. Urea dispensers minimize crystallization through sealed delivery systems, insulated tanks, and temperature control.
Heating elements, purge cycles, and regular circulation prevent crystal formation within hoses, pumps, and nozzles. Proper material selection and regular maintenance further reduce the risk of crystallization that could obstruct flow.
Preventing crystallization ensures uninterrupted operation, reduces maintenance frequency, protects internal components, and guarantees accurate and reliable DEF dispensing over the lifespan of the dispenser.