1. Pesticide Application Equipment Page 78 General Manual

2. To Enhance Safety and Benefits and to Get the Most From Any Sprayer:
Select the right equipment.
Set it up correctly.
Use proper operation procedures.
Perform proper maintenance.

3. Reference Materials The pesticide label Spray equipment
BLM and Extension guidelines

4. All Sprayers Should Be:
Durable
Convenient to fill
Convenient to operate
Easy to clean

5. Three Basic Functions of a Sprayer:
Distribution & Metering
Determine the volume or weight that application equipment will apply to a known area under a given set of conditions.
Storage and transport
CALIBRATION

6. Types of Spray Equipment
Hand sprayer
Knapsack (LOK)
Battery powered

7. Low pressure hydraulic
High pressure
ULV
Chemigation or injection

8. Tanks Fiberglass Stainless steel Galvanized steel Aluminum
Polyethylene

9. Lock Opening
Large Openings
Strainer For Filling
Agitation Device
Large Drain

10. Agitation

11. 12 GPM for Boom 50 GPM for agitation 62 GPM total pump requirement
Agitation Requirement 5% of tank volume (5 gallons for each 100 gallons)
1000 gallon tank
Pump - 50 GPM just for agitation
12 GPM for Boom 50 GPM for agitation 62 GPM total pump requirement

12. Strainers Tank opening In-line (40-50 mesh)
Basket Strainer (16-80 mesh)
In-line (40-50 mesh)
Nozzle screen ( mesh)

13. Pumps Must Provide Gallons per minute (GPM) required by all nozzles
Tank agitation (5 - 6 % of tank volume)
Twenty percent (20%) reserve for wear

14. Pump Types
Roller
Centrifugal
Gear
Turbine
Diaphragm
Piston

15. Positive Displacement
General Purpose
Wide range
Output
Pressures
Herbicides
Rollers can wear
Roller Pump

16. Positive Displacement
High Pressure
Volume depends on RPMs
Insecticides
Dry Formulations
Part can wear
Piston

17. Positive Displacement
High Pressure
High Volume
Insecticides
Herbicides
Dry Formulations
Part can wear
Diaphragm

18. Non-positive Displacement
Continuous Flow
High RPM’s
Low Pressures
Durable
Easy to Maintain
Dry Formulations

19. Pump requirement (GPM)=
Desired GPA x Boom Width x MPH 495
For Boom Flow only
Add 5 GPM for every 100 gallons of tank – page 78

20. Example
30 GPA x 40 feet x 5 MPH 495
= 12 GPM

21. Pressure Least desirable to adjust GPA 4 x pressure to double GPA
20 GPA at 30 psi
40 GPA at 120 psi
Small droplets = DRIFT
Minor tweeks!

22. Find New Pressure (psi) page 82
40 GPA 20 GPA 2
35 psi X
35 X 2
35 X 4
New Pressure = 140 psi

23. Hoses Flexible (non-collapsible if suction hose) Durable
Resistant (sunlight, oil, chemicals, abrasion, twisting)
Sufficient Pressure Rating
Correct size

24. Guide for determining hose size. General Manual Page 88
Pump Output
(gals/min.)
Suction Hose
Discharge Hose
(inside diameter in inches)
Under 12 GPM
3/4
5/8
12-25 GPM 1
25-50 GPM
1 1/4
GPM
1 1/2

25. GPA – Gallons per Acre (GPA)
Total sprayer output, delivery rate, volume applied…ad nauseum
GPM – Gallons per Minute (GPM)
Nozzles and pump output
Diluent – dilutes formulation at applicatoin
Carrier – dilutes active ingredient at manufacture

27. Comparison of Micron Sizes (approximate)
2000 m - #2 Pencil lead
850 m - paper clip
420 m – staple
300 m - toothbrush bristle
150 m - sewing thread
100 m - human hair

29. What’s a good GPA? Very Fine to Fine Droplet = Low Volume (GPA)
Medium to Coarse Droplets
Very Coarse = High Volume

30. Read them labels!!

31. Three Functions of a Nozzle
Metering - GPA
Atomization – Liquid to drops
Pattern dispersal

32. MAXIMIZING SPRAYER PERFORMANCE
Nozzle materials
Stainless steel, brass and plastic are the most common.
Stainless steel is probably the best choice

33. Nozzles: Wear vs Cost

34. VOLUME OF PESTICIDE SOLUTION APPLIED DEPENDS UPON:
NOZZLE TIPS
PRESSURE
SPEED
NOZZLE SPACING

35. TeeJet nozzle tip examples

36. NOZZLE TIP DESIGNATIONS SPRAYING SYSTEMS CO.
HSS8002E
HSS E
HSS = HARDENED STAINLESS STEEL
80 = 80 DEGREE SPRAY ANGLE
02 = 0.2 GALLON PER MINUTE AT 40 PSI
E = EVEN FLAT FAN PATTERN FOR BAND APPLICATION

37. Nozzle Coding- Spraying Systems
XR means eXtended Range
80 means 80o pattern
03 means 0.30 GPM at 40 psi
VS means Stainless Steel withVisiFlo color coding
SS = Stainless Steel
VP = Polymer, etc

38. Atomization (Droplet Size) is Dependent On:
Nozzle type and orifice size
Pressure – higher pressure = small drops
Liquid characteristics

39. Nozzle Types Flat fan - regular Flat fan - extended range
Twin flat fan - good for
dense foliage

40. MAXIMIZING SPRAYER PERFORMANCE

42. Nozzle Orientation

43. Nozzle types Even flat fan - band applications Flooding flat fan
Hollow cone
Full cone

44. Flood Jet

45. MAXIMIZING SPRAYER PERFORMANCE
NOZZLES
Nozzle types
Flat fan is best for broadcast application of herbicides
Flat fan
Even fan

46. BOOM BUSTER SPRAY NOZZLES THAT WORK WITHOUT BOOMS
FEATURES
All nozzles machined from solid stainless steel.  All have replaceable industrial grade nylon diffusers. (Tests have shown that this nylon will outlast stainless steel.)

47. Roadside Spray Boom

48. Boom Buster (con’t) Extra wide spray pattern.
Excellent pattern and distribution.
All models spray chemicals and fertilizers.
All nozzles have standard pipe threads.

49. Boom Buster (con’t) USES Row Crops, Grain and Pastures
State and County Right-of-Ways
Orchards and Vineyards
Forestry and Utility Right-of-Ways
Lawn and Turf
Roads, Hedge Rows and Fence Rows

50. Rule of Thumb
An 8004 nozzle will deliver 40 gpa when used at 3 mph with 40 psi.
Likewise an 8002 will deliver 20 gpa under the same conditions.
An 8001 will deliver 10 gpa.

51. CHOOSING THE RIGHT NOZZLE SIZE
GPM = GPA x MPH x Nozzle spacing in inches
GPM = Gallons per minute per nozzle
GPA = Gallons per acre
MPH = Miles per hour

52. EXAMPLE GPA = 30 MPH = 4 Nozzle spacing = 20
GPM = 30 GPA x 4 MPH x 20 in
GPM = 0.40

53. HOW TO CHANGE SPRAYER OUTPUT
NOZZLES
Best for large changes in output

54. HOW TO CHANGE SPRAYER OUTPUT
Pressure
Only feasible within a limited pressure range
Pressure must be increased by a factor of 4 in order to double the flow
10 GPA at 20 PSI
20 GPA at 80 PSI

55. HOW TO CHANGE SPRAYER OUTPUT
SPEED
Only feasible within a limited range of speeds
Double ground speed will decrease output by 50%
1/2 ground speed will increase output by 50%

56. Ground Speed – Page 100
Linear relationship

57. Verifying Speed Page 95 Make a test strip to verify MPH
Feet x Seconds x 88*
Feet per second x 0.682
* At 1 MPH, it takes 1 minute to travel 88 feet

58. 75 MPH Speed - Example (5,280 / 48 seconds) x 0.682 =
Test Strip Distance = 5,280 feet
Seconds to travel strip = 48 seconds
(5,280 / 48 seconds) x =
75 MPH

59. 5 MPH So What! Speed 2 (200 / 27 seconds) x 0.682 =
Test Strip Distance = 200 feet
Seconds to travel strip = 27 seconds
(200 / 27 seconds) x =
5 MPH
So What!

60. Current GPA x Present MPH = New GPA
Speed Effects on GPA
Current GPA x Present MPH = New GPA
New GPA
Page 100 for example
20 GPA x 3 MPH = = 6 MPH GPA

61. ROW Manual – Pg 15 New GPA = Current GPA x Current MPH New MPH
25 GPA x 5 MPH = = or 18 GPA MPH

62. Don't Be Scared!