What pump capacity, nozzle design, and heating requirements should be evaluated when buying bitumen emulsion sprayers?

Evaluate pump capacity based on maximum required spray rate, lane width, and vehicle speed, ensuring the pump can deliver stable flow at the emulsion’s operating viscosity without pulsation. Nozzle design must match target distribution, typically flat fan nozzles with correct angle, spacing, and overlap at the chosen bar height. Filtration must protect nozzles without stripping the emulsion. Heating is usually for lines and pump in cool weather or for higher viscosity grades, but avoid excessive heat that can break the emulsion. The system should include pressure regulation, recirculation mode, and calibration features for QA.