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Plumbing Diagrams<br />
The following diagrams have been developed to serve as a guideline<br />
for plumbing agricultural sprayers. Similar manual valves may be<br />
substituted for electric valves. However, the sequence in which these<br />
valves occur should remain the same. Note that one of the most<br />
common causes of premature valve failure is improper installation.<br />
Positive Displacement Pump<br />
Piston, roller and diaphragm pumps are all types of positive<br />
displacement pumps. This means that pump output is proportional<br />
to speed and virtually independent of pressure. A key component<br />
in a positive displacement system is the pressure relief valve. Proper<br />
placement and sizing of the pressure relief valve is essential for safe<br />
and accurate operation of a positive displacement pump.<br />
JET AGITATOR<br />
JET AGITATOR<br />
AGITATION<br />
LINE<br />
THROTTLING<br />
VALVE<br />
DIAPHRAGM<br />
PUMP<br />
TANK<br />
SHUTOFF<br />
LINE STRAINER<br />
BYPASS<br />
LINE<br />
AGITATION<br />
LINE<br />
THROTTLING<br />
VALVE<br />
DIAPHRAGM<br />
PUMP<br />
TANK<br />
SHUTOFF<br />
LINE STRAINER<br />
BYPASS<br />
LINE<br />
TO SPRAYER CONTROL<br />
TO SPRAYER CONTROL<br />
PRESSURE<br />
RELIEF<br />
VALVE<br />
GAUGE TEE<br />
FITTING<br />
ELECTRICAL<br />
REGULATING<br />
VALVES<br />
ELECTRICAL BALL VALVES<br />
PRESSURE<br />
RELIEF<br />
VALVE<br />
GAUGE TEE<br />
FITTING<br />
ELECTRICAL<br />
REGULATING<br />
VALVES<br />
BOOM SECTION 1 BOOM SECTION 2 BOOM SECTION 3<br />
Two-Way Plumbing Diagram (Positive Displacement)<br />
ELECTRICAL<br />
BALL<br />
VALVES<br />
BYPASS<br />
LINE<br />
BOOM SECTION 1 BOOM SECTION 2 BOOM SECTION 3<br />
Three-Way Plumbing Diagram (Positive Displacement)<br />
THROTTLING<br />
VALVE<br />
THROTTLING<br />
VALVE<br />
JET AGITATOR<br />
LINE STRAINER<br />
GAUGE TEE<br />
FITTING<br />
3-WAY<br />
VALVE<br />
TANK<br />
SHUTOFF<br />
CENTRIFUGAL<br />
PUMP<br />
TO SPRAYER<br />
CONTROL<br />
BYPASS<br />
LINE<br />
ELECTRICAL<br />
REGULATING<br />
VALVE<br />
Non-Positive Displacement Pump<br />
The centrifugal pump is the most common non-positive<br />
displacement pump. The output from this type of pump<br />
is influenced by pressure. This pump is ideal for delivering<br />
large volumes of liquid at low pressures. A key component<br />
of the centrifugal pump is the throttling valve. A manual<br />
throttling valve on the main output line is essential for the<br />
accurate operation of the centrifugal pump.<br />
SPRAY GUN<br />
SOLENOID<br />
VALVES<br />
BOOM SECTION 1 BOOM SECTION 2 BOOM SECTION 3<br />
Two-Way Plumbing Diagram (Non-Positive Displacement)<br />
TECHNICAL INFORMATION<br />
187
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