Operation

Operation

Pressure Relief Procedure

The equipment stays pressurized until pressure is man- ually relieved. To reduce the risk of serious injury from pressurized fluid, fluid from the valve, or splashing fluid, follow this procedure whenever you:

•are instructed to relieve pressure

•stop dispensing

•check, clean, or service any system equipment

•install or clean dispensing devices.

1.Close the pump air regulator and the bleed–type master air valve (required in your system).

2.Hold a metal part of the dispensing valve firmly to a grounded metal waste container and trigger the valve to relieve the fluid pressure.

Startup

1.If there are multiple pumps on the air line, close the air regulators and bleed–type master air valves to all but one pump. If there is only one pump, close its air regulator and bleed–type master air valve.

2.Open the master air valve from the compressor.

3.Open the dispensing valve into a grounded metal waste container, making firm metal–to–metal con- tact between the container and valve. Open the bleed–type master air valve and open the pump air regulator slowly, just until the pump is running. When the pump is primed and all air has been pushed out of the lines, close the dispense valve.

4.If you have more than one pump, repeat this proce- dure for each pump.

When the pump is primed, and with sufficient air supplied, the pump starts when the dispensing

valve is opened and shuts off when it is closed.

5.Set the air pressure to each pump at the lowest pressure needed to get the desired results.

The pump has a rated ratio of 50:1. However, it is

capable of reaching stall pressures equal to 60

times the air input pressure. Calculate the fluid out- put pressure using the air regulator reading. Multi- ply the air pressure shown on the regulator gauge by 60. For example:

140 psi air x 60 = 8400 psi fluid output) (0.97 MPa air = 58.2 MPa fluid output

99.7 bar air x 60 = 582 bar fluid output

Regulate air to the pump so that no air line or fluid line component or accessory is overpressurized.

6.Never allow the pump to run dry of the material being pumped.

CAUTION

A dry pump will quickly accelerate to a high speed, possibly damaging itself. If your pump accelerates quickly, or is running too fast, stop it immediately and check the material supply. If the supply container is empty and air has been pumped into the lines, prime the pump and lines with material, or flush it and leave it filled with a compatible solvent. Be sure to eliminate all air from the material lines.

A pump runaway valve can be installed on the air line to automatically shut off the pump if it starts to

run too fast.

7.Read and follow the instructions supplied with each component in your system.

8.To shut off the system, always follow the Pressure Relief Procedure.

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Graco 246780 Series C, 253361 Series C, 246781 Series C, 246909 Series C Operation, Pressure Relief Procedure, Startup
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246909 Series C, 246780 Series C, 246781 Series C, 253361 Series C specifications

Graco, a renowned name in the field of fluid management and equipment manufacturing, offers a wide range of products designed for various applications. Among their impressive lineup, the Graco 253361 Series C, 246781 Series C, 246780 Series C, and 246909 Series C stand out for their advanced features and reliable performance. These models cater to professionals across multiple industries, including painting, coating, and spraying tasks.

The Graco 253361 Series C is engineered for durability and efficiency, suitable for heavy-duty use. One of its standout features is its high-pressure paint delivery system, allowing users to achieve a smooth and even finish. This model comes equipped with a powerful motor that ensures consistent pressure, improving spray quality and reducing overspray. Additionally, its compact design enhances portability, making it ideal for both interior and exterior jobs.

Moving on to the Graco 246781 Series C, this model is recognized for its versatility. It supports a wide range of coatings, from water-based to solvent-based paints. The easy-to-use control system allows for precise adjustments, catering to various spray patterns and techniques. Its robust construction guarantees longevity, making it a reliable choice for professionals who demand uninterrupted workflow.

The Graco 246780 Series C offers a unique combination of power and portability. Engineered for smaller jobs, this model packs a punch with its efficient motor that generates high pressure for meticulous applications. It features a user-friendly interface that simplifies operation, ensuring that even novice users can achieve professional results. Its lightweight design makes it easy to maneuver, while the integrated storage keeps your tools organized.

Finally, the Graco 246909 Series C is an exceptional choice for those seeking a high-performance sprayer for larger projects. With advanced pressure control technology, this model minimizes material waste while maximizing productivity. Its built-in filtration system protects the pump from dirt and debris, extending the lifespan of the equipment. Additionally, the ergonomic design ensures comfort during extended use, catering to the needs of professionals demanding both performance and ease.

In conclusion, the Graco 253361 Series C, 246781 Series C, 246780 Series C, and 246909 Series C models exemplify innovation in fluid handling technology. Each model is designed to meet the specific needs of various applications, ensuring that users achieve optimal results with efficiency and effectiveness. Graco continues to set the standard in the spray equipment industry, enhancing productivity and quality across projects.
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