Graco 3A059OG Volume Balancing the Mix Manifold, Adjust Restriction at the Mix Manifold

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Volume Balancing the Mix Manifold

Volume Balancing the Mix Manifold

If the mix manifold is mounted on the machine, you do not need to adjust the restrictor (F). Leave open two turns minimum.

When the manifold is remote, two things must be done to reduce momentary ratio errors that can occur due to the compressible nature of paint hoses.

•Adjust Restriction

•Select correct sized hoses

Adjust Restriction at the Mix Manifold

The B side restrictor (F) in the mix manifold is only used when the mix manifold is positioned remote from the machine with a short mix hose to the spray gun.

The restrictor (F) controls “lead/lag” ratio errors of the A and B flow into the static mixer tubes. These errors occur momentarily when the gun opens. The error is caused by differences in viscosity, volume, and hose expansion between the proportioner outlets and the mix point.

Adjust the restrictor (F) stem clockwise while spraying until you see a slight rise in the B side pressure gauge. The point where the pressure starts to rise is a good adjustment setting.

restrictor stem

NOTE: Unless you are dispensing directly out of the mix manifold and mixer, this an approximate adjust- ment.

For low viscosity fluids, an optional 40 mesh screen can be installed in the mix manifold, in front of the restrictor. This keeps the carbide tapered stem and seat from plugging.

For high viscosity 1:1 applications, the entire restrictor assembly and seat can be removed and replaced by a high pressure 3/4 npt plug.

Hose Selection for Feeding A Remote Mix Manifold

The mix manifold can be removed from the machine and used closer to the spray gun to minimize the mixed material in the hoses and reduce flush solvent with the following restrictions.

•Only one mix manifold can be used on a propor- tioner.

•Splitting flow to two or more guns can only be done after the two fluids are mixed.

NOTE: This applies to applications that are not 1:1 ratio, and don’t have near balanced viscosities.

Balance the hoses inside area sizes in relation to the mix ratio by volume. This is most important when the mix manifold gets close to the spray gun.

The proportioner will put out the two materials in the exact ratio by volume. If the hose sizes are not balanced to the ratio, one hose will always come up to pressure first. This ratio error at the mix point can occur anytime that there is a change in pressure. Balance the hose sizes by effective area, not by inside diameter.

Area = (3.1416 * radius2) or see Table 1.

NOTE: For balancing purposes, it is always assumed that the A side is the high volume side.

Table 1: Volume Ratio of “A” to “B” Hose

 

Hose Selection

 

Mix Ratio

“A” x “B”

Volume Ratio

 

 

 

1:1

1/2 x 1/2

1.0:1

 

3/8 x 3/8

 

1.5:1, 2:1

1/2 x 3/8

1.78:1

2:1

3/8 x 1/4

2.25:1

2.5:1

3/8 x 1/4

2.25:1

3:1

 

 

4:1

1/2 x 1/4

4.0:1

Example: At a 4:1 mix ratio, a 1/2 in. ID resin hose and a 1/4 in. ID hardener hose matches the 4:1 volume ratio.

3A0590G

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Contents 262807 24M398 Important Safety InstructionsRelated Manuals ContentsFire and Explosion Hazard Skin Injection Hazard Pressurized Aluminum Parts Hazard Important Two-Component Material Information Changing Materials B Component DesignationsMachine Left Machine Right Market Equipment Designations Quickset Manifold Key Component IdentificationOverview Side of Mix ManifoldMixed Material Solvent Inlet InstallationFluid Inlets Fluid OutletFlush Before Using Equipment GroundingRatio Check Relieve a and B Fluid Pressure Pressure Relief ProcedureOperation Trigger LockFlushing Dispensing and Spraying Hose Selection for Feeding a Remote Mix Manifold Volume Balancing the Mix ManifoldAdjust Restriction at the Mix Manifold Volume Ratio of a to B Hose Hose Selection Mix RatioCps at 1 liter/min Psi BarReference Formula Clean Mix Manifold Outlet MaintenanceClean Static Mixers Clean B Side ScreenProblem Cause Solution TroubleshootingCartridge Assemblies RepairAssemble Restrictor Remove RestrictorRepair 3A0590G Mix Manifold PartsBall Part No. Description Qty24M398 Quickset Mix Manifold Part No. Description Repair KitsAccessory Ports AccessoriesTechnical Data Mix Manifolds MetricWetted parts Graco Information Graco Standard Warranty

3A059OG specifications

The Graco 3A059OG is a standout product in the realm of paint sprayers, showcasing cutting-edge technology tailored for both professionals and DIY enthusiasts. This airless paint sprayer effectively streamlines the painting process, providing an efficient and high-quality finish on a variety of surfaces.

One of the primary features of the Graco 3A059OG is its robust performance. It is equipped with a powerful motor capable of delivering an impressive paint flow rate, enabling users to tackle large projects with ease. With the ability to spray unthinned paint directly from the container, it saves significant preparation time, making it ideal for busy contractors and homeowners alike.

Another remarkable characteristic of the Graco 3A059OG is its adjustable pressure control. This feature allows the user to modify the spray pressure according to the specific requirements of the project or the viscosity of the paint being used. As a result, it ensures a perfect spray pattern and minimizes overspray, allowing for a clean and efficient application.

Additionally, the Graco 3A059OG integrates advanced FlexLiner technology, which enables users to work with various coatings while reducing cleanup time. The FlexLiner bag allows for quick paint changes and minimizes wasted paint, making it an eco-friendly choice. This innovative design enhances overall efficiency and maximizes productivity on site.

Safety features are also a highlight of the Graco 3A059OG. It includes an integrated filtration system that effectively removes debris and contaminants from the paint, ensuring a seamless application without clogging. Furthermore, the user-friendly controls and design enhance safety during operation, making it accessible for both novice and experienced users.

In terms of portability, the Graco 3A059OG is designed with mobility in mind. Its lightweight construction and ergonomic handle facilitate easy transportation, making it convenient for job sites or moving it around the house. The compact design further enables users to store it without consuming too much space.

Overall, the Graco 3A059OG sets a benchmark in the paint sprayer market through its impressive features, including high performance, adjustable pressure control, and innovative FlexLiner technology. Coupled with safety measures and portability, it stands out as an excellent choice for a wide range of painting applications, ensuring a professional-grade finish every time.
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