Why is chemical injection better for pressure washers?
Another reason chemical injection is better is that it is all in one piece of equipment, and most times it can be controlled right at the pressure washer nozzle. Section: Adjustable or Fixed Injectors?
What type of injectors are used in pressure washer pumps?
There are two types of injectors: upstream and downstream injector. An upstream injector is installed on the inlet side of the pressure washer pump system. A downstream injector is installed on the outlet (discharge) side of the pump. The more commonly used one is the downstream injector.
Why is my injector letting water into the chemical line?
If the injector is allowing water into the Chemical Line, first unscrew the nipple or adjustment knob from the injector body. If the spring and ball appear to be in good condition, check to see if the o-ring is out of place.
How does a laundry injector work?
Once the injector has already been placed, now you’ll need to wait for it to take effect. Just to give you an idea, these injectors make use of a Venturi type of effect that pushes the liquid inside the injector out and into the vacuum via pressure. At the same time, you’ll also want to use a low-pressure nozzle to help the detergent move.
Why use a shorter hose for chemical injection?
Because of this, in situations where a high percentage of chemical draw is important to the result of the wash job , a shorter hose is beneficial. A trick of the trade when a long hose is needed along with downstream chemical injection is to move the chemical injector itself down line in the high-pressure hose.
How does a chemical injector work?
The chemical injector relies on the venturi nozzle to create a high pressure, fast stream of water inside the injector body. This nozzle must be properly sized to create the venturi action. The proper sized venturi nozzle will reduce the flow of water leaving the injector slightly, while allowing chemical to be injected. Installing a smaller venturi nozzle can help with chemical draw, but it also reduces water flow. One of the reasons chemical injectors wear out is that the venturi nozzle wears larger due to the water and chemical action. As the nozzle wears, the percentage of chemical drawn slowly lowers. This happens so slowly that the pressure wash operator may not notice it until the wash job becomes unacceptable, or difficult to accomplish.
How does pressure affect venturi?
The pressure exerted on the outlet port of the injector adversely affects the venturi action of the injector. Because of this fact, the shorter the pressure hose is, the less back pressure is produced, and the higher the chemical draw will be. The pressure hose inner diameter also affects the back pressure created.
Why do venturi nozzles wear out?
One of the reasons chemical injectors wear out is that the venturi nozzle wears larger due to the water and chemical action. As the nozzle wears, the percentage of chemical drawn slowly lowers.
How much induction does a super suds sucker injector provide?
Most injectors will provide up to 10-12% through the injector. Super Suds Sucker injectors provide up to 3 times that much but quite often this is not enough to satisfy the needs of the contractor who is up against a real tough job. To answer this call we have re-valved and balanced a popular ShurFlo pump that will answer the call. When you install this 12-V pump between the Chemical Supply and Injector and your injector will draw as much as 3 times the normal performance rate.
What happens to the chemical viscosity of injectors?
Section: Chemical Viscosity for Injectors. The higher the chemical viscosity, or thicker the chemical is, the lower the draw rate of the injector will be. The chemical viscosity will increase if chemical is stored in open containers and evaporation occurs.
What is the function of a chemical injector?
This principle states that when water flows through a restricted area, its velocity increases and its pressure decreases. So a chemical injector has a restrictive orifice that the water stream is forced through.
Truck-Mounted Carpet and Tile Extractor Pumps
Carpet extractor systems run continuously for hours cleaning carpet, upholstery, drapes, rugs, tile and more. Cat Pumps field-proven reliability has made us the leading supplier for truck-mounted carpet cleaning systems. Gas driven systems typically run between 3-4 gpm at 1000 psi whereas, electric systems run at 1.5 gpm at 500 psi.
Portable Carpet and Tile Extractor Pumps
Similar to truck-mounted systems, portable extractor systems are used to clean a variety of surfaces. Systems typically are driven with an electric motor and operate from 0.5-2.0 gpm and from 100-1200 psi.
Chemical Injection Pulse Pump
Pulse Pumps offer an economical alternative to running harsh chemicals through the pump, allowing the use of standard materials and elastomers. Pulse Pumps eliminate the need for premixing chemical solutions by injecting the chemical down stream from the pump.
What happens when you insert a pressure washer injector?
First is if you use a high-pressure nozzle, so you may want to avoid doing that. Next is applying too much pressure using the pressure hose.
What is the difference between downstream and upstream chemical injectors?
The main difference between a downstream chemical injector and an upstream type is that because of this characteristic, it doesn’t need a vacuum to bring the detergent to the reservoir. On the other hand , the upstream type does require a vacuum. That said, it’s actually safer for the pressure washer if you use a downstream chemical injector type.
How to install an injector on a power washer?
Insert The Injector. The first thing to do is to know where to insert the injector. As mentioned above, you place it in the pressure side of the washer. In order to do that, you first attach quick couplers to the ends of the injector. From there, connect it to the connector between the pressure hose and power washer.
Does back pressure push water back to injector?
Eventually, the back pressure will just push back the water to the injector. That being said, these are two things that you may want to remember when using your injector.