The Plastic Sprayers Manufacturer   stated that the sprayer is a very useful type of machine and a good example of the basic piping principle. The sprayer head consists of only a few parts. It has a trigger lever that activates a small pump. The pump is connected to a plastic tube that draws cleaning fluid from the bottom of the reservoir. The pump forces the liquid to extend outwardly through the narrow bore of the narrow bore in the muzzle. A hole or nozzle is used to focus the flowing liquid to form a concentrated stream.

The only complex element in this design is the fluid pump, which is as simple as they are. The primary moving element is the piston, which is housed in the cylinder. Inside the cylinder, there is a small spring. To operate the pump, pull the trigger back and push the piston into the cylinder. The piston is compressed to compress the spring so that when the trigger is released, the piston is pushed back into the cylinder. These two strokes of the piston enter the cylinder and are discharged again, constituting the entire pump cycle.

Downstroke, the piston is pushed in, reducing the area of ​​the cylinder and forcing fluid out of the pump. On the upstroke, the spring pushes the piston back, expanding the cylinder area and drawing fluid into the pump. In the sprayer, you need to draw the cleaning solution from the tank below and force it out through the upper bucket. In order for all fluid to pass through the barrel, the pump must only force the fluid to rise - it cannot force the fluid back to the tank. In other words, the fluid must pass through the pump in only one direction.

The device that makes this possible is called a one-way valve. The nebulizer has two check valves in the pumping system: one between the pump and the reservoir and one between the pump and the nozzle. Typically, the valve between the pump and the reservoir consists of a small rubber ball that is neatly placed in a small seal. The sides of the seal are angled so that the ball does not fall. Depending on the design, either gravity or a small spring will secure the ball to the seal so that when you don't pump water, the water channel is blocked. When the piston moves outward (when the trigger is released), the expansion area of ​​the cylinder draws in the liquid below and pulls the ball out of the seal. Since the ball is lifted, the fluid can freely flow out of the reservoir. But when you squeeze the trigger, the outward force of the moving fluid pushes the ball into the seal, blocking the passage to the tank. Therefore, the pressurized fluid is only pushed into the barrel.

This content is not compatible with this device.

In the spray mechanism, the one-way valve between the pump and the nozzle is a cup that is mounted at the end of the barrel. During the upstroke, the inward pressure

from the pump pulls the cup toward the barrel so air cannot flow through the nozzle. During the lower stroke, the ejected fluid lifts the cup slightly away from the barrel and through the nozzle. Without this second check valve, the pump system would not be able to draw fluid from the reservoir because there was no suction (the air pressure did not drop). The upper stroke does not reduce the air pressure in the pump; it only draws in more air to maintain this pressure.

This valve can also be used as a shutdown system. When you screw the nozzle assembly in, it presses the seat tightly against the barrel, so you can't force any liquid out. When the nozzle is released, the seat has enough space to move back and forth.

When you use the sprayer for the first time, you must squeeze the trigger several times to spray any cleaning fluid. There are two reasons for this delay:

Before starting the pumping, set the gun to the lower stroke instead of the upper stroke (the piston is outside the cylinder). When you pull the trigger for the first time, no liquid is drawn out when the piston is pushed in; there is only air in the cylinder chamber. The piston must slide out to draw any liquid from the reservoir.
On the first upstroke, the pump begins to draw cleaning fluid
from the reservoir. But it also inhales any air in the plastic pipes leading to
the reservoir. This air must be driven by the pump mechanism before starting to
spray the cleaning fluid. This may require some down and up.
This simple pump
design is called a reciprocating piston pump and can be used for a variety of
tasks. In addition to pressurizing water, air and many other fluids, this design
also extracts water and oil from the ground. We even have a reciprocating pump
built into our body: your heart expands, inhaling low pressure blood through a
one-way valve and contracting, forcing high pressure blood through another check
valve back into your body. The same basic mechanism that makes ordinary sprayers
work can also keep you alive!

Ningbo RuiChang Commodity Packaging Co.,
Ltd
  . is a professional Plastic Sprayers
Manufacturer
  
in China, providing you with high quality plastic sprayer
products.

https://www.ruichangpacking.com/product

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