Raven AccuFlow Vortex, Installation And Operation Manual

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CHAPTER 4
46 AccuFlow™ Vortex and AccuFlow™ HP+ Installation and Operation Manual
FIGURE 2. System Capacity Chart
ACCUFLOW NH
3
ORIFICE KIT INSTRUCTIONS
OVERVIEW
Anhydrous ammonia will vaporize as is loses pressure from the nurse tank to the AccuFlow system. For the
Accuflow system to work properly, the NH
3
passing through the flowmeter must be liquid. The AccuFlow cooler
converts the vapor back to liquid using NH
3
as a refrigerant. This refrigerant then discharges through vapor knives
installed behind applicator knives. This may add extra NH
3
to those rows.
Options to reduce the amount of refrigerant and row to row variances are:
1. Divide the refrigerant by installing additional vapor knives.
2. When applying at lower rates, use an orifice fitting to control the amount of refrigerant used.
The table below outlines desired product flow rates.
0
50
100
150
200
250
300
350
400
100 200 300 400 500 600 700 800 900 1000 1100 1200
Ta
rg
e
t
Ra
te
(LbN/
A
cre)
Implement Width (IN)
50 GPM Vortex System Capacity
12 MPH Max
10 MPH Max
8 MPH Max
7 MPH Max
6 MPH Max
5 MPH Max