Fast BW750, Руководство по эксплуатации

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Example:
Desired application is 20 GPA of 28%N. Determine the
correct nozzle size as follows:
GPA (solution) x Conversion factor = GPA (from table)
20 GPA (28%) x 1.13 = 22.6 GPA (water)
The sprayer operator should choose a nozzle size that will
supply 22.6 GPA of water at the desired pressure.
Weight Of Solution
Specific
Gravity Conversion
Factors
8.34 lbs per gallon - Water 1.0 1.0
10.65 lbs per gallon - 28% Nitrogen 1.28 1.13
11.0 lbs per gallon - 32% Nitrogen 1.32 1.15
9.5 Tip Selection
Proper application of agricultural chemicals is essential
to good performance. Applying the correct amount and
effectively covering the target are key factors in proper
application. Too often, poor weed, disease, or insect control
can be traced to problems with spray distribution along the
boom.
Spray distribution refers to the uniformity of spray coverage
across the boom swath. The goal in broadcast spraying is
even (uniform) spray distribution. Factors affecting spray
distribution include nozzle type, spray pattern angle, nozzle
spacing and boom height. When selecting nozzles to
be used on a boom for broadcast application, finding the
correct combination of these factors is important. The nozzle
spray angle and the height of the boom will determine the
overlap between adjacent tips, which is critical to uniform
distribution.
Unless otherwise specified at the time of manufacture, your
sprayer is equipped with flat fan spray nozzles having the
following characteristics:
• Volume: approximately 20 GPA at 30 psi at 5 mph
• Spray angle: 110 degrees
•
• Nozzle spacing: 20 inches
If you want to change the application rate or the type of
nozzle, the tables on the following pages provide the
information needed to help you choose the right nozzle for
common applications. (Refer to the Fast Manufacturing,
Inc. product catalog for more specific information).
IMPORTANT: Your chemical supplier can give you accurate
information about the recommended chemical mixture and
the application rate. Check with your supplier before you
select a different tip.
You must know the following information to use the nozzle
selection tables:
• The type of nozzle (flat fan, cone, or flood)
• The spraying pressure you will be using (psi)
• The application rate (GPA)
• The nozzle spacing (in inches)
• The operating speed in miles per hour