Size of the median droplet (in microns) for a sprayed volume. Half of the volume is made up of droplets smaller than the VMD; half is made up of droplets larger.
Percentage of volume which is likely to drift. 141µ is now replacing 200µ as the new standard for driftable fines.
Percentage of volume which is made up of ‘useful’ droplets. As the distribution of useful droplets lowers, overall coverage is reduced.
This is the pressure to be maintained for sprayer application. Pressure at the tip will differ from the listed pressure, but Tip Wizard does compensate for pressure loss through plumbing.
The speed range shown provides the minimum and maximum recommended sprayer speed, provided the required flow rate and droplet size. If the speed range is shown in red, the req’d flow rate cannot be achieved at requested max speed.
Duty cycle is how long the PWM solenoid stays open during its pulse interval to attain the required flow rate and pressure. Operating outside of a 100% duty cycle will result in under application of chemical. Operating at duty cycles too low (ie. <30% duty cycle) have the potential to result in missed coverage. Ideal duty cycle would be ~70% duty cycle; which, would allow for adjustment of +/- 30% of the flow rate to compensate for slowing down or speeding up (or turning).
Pre-orifices in the spray tips should not be intermixed. Pre-orifices are required for proper performance of the spray tip. ER series spray tips do not have a pre-orifice. For high-flow applications that do not require a strainer, long-stem pre-orifices are often used. UR series orifices have a special dual-chamber pre-orifice combo, which is a different style pre-orifice from other series.
Combo-Jet spray tips use a quarter-turn o-ring seal cap to the nozzle body. An adapter is required for any non-radialock nozzle bodies.
The #40204-00 adapter is the square lug outlet to Combo-Jet cap adapter.
For tips smaller than ‘-015’, a 100 mesh strainer is recommended (#40251-00). For tips larger than ‘-02’, a 50 mesh strainer is recommended (#40250-00). For tips ‘-08’ or larger, a strainer is not required.
The ideal droplet size for a spray application is based on the chemical itself (or mode of application), as there are spray quality specifications in the chemical label that must be adhered to. Refer to your chemical label for the specified droplet size category (e.g. coarse), and choose a suitable VMD droplet size within that spectrum to search for your spray tip.