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PLUMBING SUGGESTIONS
The primary goal when plumbing a sprayer pump is to route liquid with minimum restriction. Minimizing
restrictions is necessary for achieving the pump's maximum rated capacity. The following are
recommended practices to maximize pump performance and efficiency:
¾ Hoses should be at least the same size as the pump's suction and discharge port. Pump
performance may be increased up to 20% by using one size larger suction hose.
A straight run of 10 times the suction hose diameter is recommended prior to the pump inlet.
Example: 1.5" (38.1 mm) hose diameter = 15" (38.1 cm) of straight hose
The straight section provides laminar water flow to the pump.
¾ A minimum number of elbows, fittings, and valves should be used to reduce pressure losses.
These should also be sized properly to prevent flow restrictions.
¾ An anti-vortex fitting should be installed on the suction port inside the tank. This fitting prevents
a vortex from forming when the tank liquid level is low. A vortex will allow the pump to pull air in
causing irregular performance or loss of prime.
¾ Install a pressure gauge and valve on the discharge side of the pump for the purpose of measuring
the SHUT-OFF pressure. The SHUT-OFF pressure is needed for the setup of HYD series
pumps.
¾ An agitation flow rate of 5% of the tank capacity is recommended for most chemicals. A higher
rate of 10% is suggested for wettable powders and materials difficult to keep in suspension. See
the chart below for common tank sizes.
Tank Capacity
500 gallons
750 gallons
1000 gallons
1500 gallons
Jet agitators are the most efficient way to agitate a large tank. They operate on an entrainment
principle where flow through an orifice is multiplied by capturing surrounding fluid. The flow rate
is based on the pressure of the fluid passing through. A pressure gauge installed on the agitation
line gives the operator an indication of total agitation flow. This is especially important for high
application rates where more flow is needed for the boom.
¾ A line strainer should be installed on the discharge side of the pump to protect the nozzles from
clogging. If a strainer must be used in front of the pump, a large mesh screen should be used to
filter debris too large to pass through the impeller vanes.
¾ The electronic spray control valve and flow-meter should be sized for the desired maximum boom
flow based on the application rate and ground speed.
¾ A pressure spike valve is recommended for use with Ace MAX series models. These models operate
at pressures up to 160 psi (11 bar). A pressure spike is generated when the boom is turned off.
The spike valve will relieve the pressure back to tank and prevent damage to system components.
5%
10%
25 gpm
50 gpm
37 gpm
75 gpm
50 gpm
100 gpm
75 gpm
150 gpm
Tank Capacity
3000 liter
4000 liter
5000 liter
8000 liter
5
5%
10%
150 lpm
300 lpm
200 lpm
400 lpm
250 lpm
500 lpm
400 lpm
800 lpm
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