WORKING PRINCIPLE
Through the swing of the operation arm and components, the pump bowl rises up and down so that the sealing
ball turns on and off, which makes the pressure in the air chamber also rise up and down, impeling the liquid to
get into the chamber. The liquid goes through the spraying system and flows out as spray.
CHARACTERISTICS:
1. The external form is the imitation of the human body’s back curve. The combination of the air chamber and
pump located in the liquid container makes the whole structure compact, safe and leak-resistant.
2. The operation arm uses an action connecting style so that it can be installed on both sides. It’s convenient and
quick in action, and while it is in use, the operation arm does not separate easily-making it easier for the user to
operate the sprayer with the right or left hand.
3. Use the various spray heads for different tasks and to adjust between fine spray and coarse spray patterns.
4. Chosen materials for the sprayer are excellent, resistant to acid, corrosion, and alkalinity. The sprayer is sealed
hermetically and very durable.
OPERATION METHOD
After the sprayer carton is opened, please check to see that all parts conform to the packing list. Then assemble
the sprayer, using the diagram as reference. Before use, please twist off the cap of the container. Fill the liquid
through the filter into the container slowly. Then close the cap tightly and place the sprayer on your back. Swing
the operation arm, after the pressure of the air chamber is boosted. Pinch the switch component to begin spray
operation. It can be point-spray and also can be used as continuous spray.
Choose the different spray head for spraying correctly.
3 types of spray heads are included.
1. Fan style spray head: This sprays evenly, suitable for spraying on medium-height
and short plants. For spraying weed killer, keep the spray head stable and
spray with the direction of any wind.
2. Cone spray head: This can be used for spraying pesticides and insecticides
and to prevent diseases.
3. 4-hole adjustable spray head: Used for spraying tall bushes and fruit trees.
PARAMETERS AND SPRAY-HEAD FLOW RATE
1. Type: Bak-Pak® Sprayer
4. Operation Travel: 60-80mm
2. Container Capacity: 4 gallons, 15 liters
5. Bowl Diameter: 45mm
3. Operation Pressure: 0.3-0.4 MPA
6. Net Weight: 3.2kg
