Calculating "Rate 1 And Rate 2 Cal - Raven Spra-Coupe SCS 460 Operator's Manual

5.

CALCULATING "RATE 1 AND RATE 2 CAL"

Determine the application rate at which chemical is to be sprayed.
a dealer to ensure these spray nozzles are capable of applying at this rate.
determining which spray nozzles to use with the sprayer the following must be
known:
1) Nominal Application Pressure
2) Target Application Rate
3) Target Speed
4) Nozzle Spacing
From this information, calculate the volume per minute, per nozzle as follows:
GPM [lit/min]
EXAMPLE: 1)
2)
3)
4)
GPM = 20 GPA x 5.2 MPH x 20 inches
Using GPM .35 and pressure 30 select tip number XR8004 from the chart below, since it
comes closest to providing the desired output.
VERIFYING FLOW RATE LIMITS:
The flow rate of spraying must be within the range of that specified for the Flow
Meter included.
FLOW METER MODEL
RFM 5
RFM 15
RFM 60P
RFM 100
RFM 200/200 Poly
RFM 400
= GPA [lit/ha] x MPH [km/h] x inches [cm]
5,940 [60,000]
Application Pressure
Target Application Rate
Target Speed
Nozzle Spacing
5,940
FLOW RANGE
0.05-5 GPM [0.2-18.9 lit/min]
0.3-15 GPM [1.1-56.8 lit/min]
1-60 GPM [3.8-210 lit/min]
3-100 GPM [11.4-380 lit/min]
15-200 GPM [56.8-760 lit/min]
25-400 GPM [94.6-1515 lit/min]
13
___ PSI [kpa]
___ GPA [lit/ha]
___ MPH [km/h]
___ inches [cm]
= 30 PSI
= 20 GPA
= 5.2 MPH
= 20 inches
= .35
Consult with
In