Key points

• Multi-step systems can allow the operator to greatly increase the range of spraying speeds or application volumes when compared to a standard single line sprayer

• Nozzle selection for a multi-step sprayer requires careful consideration, as the nozzle choices available to operate the spray system with a single brand or model of nozzles may be limited

• Determining the speed, flow rate or pressure at which the system should transition between one nozzle orifice size to another must take into account the minimum pressure required to operate each nozzle effectively and the spray quality that each nozzle will produce

• It is rarely possible to operate a multi-step system efficiently with a single set of the one type or model of nozzle. Particularly if the operator or product labels require a range of spray qualities from a Medium through to Extremely Coarse or larger.