Parts

Ref

Description

Qty

1

MANIFOLD, electric vent valve

1

2

VALVE, cartridge, 24VDC

1

3

VALVE, pressure relief, 3500 psi

1

4

SCREW, cap, socket, M8 x 1.25

3

8

O-RING

2

9

PLUG, pipe, 1/8 in. npt

1

10

PLUG, 1/4 in. npt

1

Accessories

Part No. Description

24N402 CABLE, 6 ft, vent valve, 2 pin for vent valve control

77X529 CABLE, power injector system only. Use with 77X528

77X528 CABLE, power extension, 15 ft (4.6m), use with 77X529

Parts

2

9

8

1

10

3

4

Technical Data

.

Vent Valve for Dyna-Star HP

 

US

Metric

Maximum working pressure*

3500 psi

24.1 MPa, 241 bar

 

 

 

Inlet/Outlet Sizes

 

 

Outlet (marked “0”)

3/8 in. npt(f)

Inlet (refill - marked “1”)

3/8 in. npt(f)

Pressure Relief Valve

 

 

Factory Set Pressure

4000 psi + 250 psi

27 MPa, 275 bar + 10%

Reset Pressure

80% of set pressure

 

Relief Rate**

0.1 gallons/minute @3500 psi

0.4 liters/minute @24.1 MPa. 241 bar

 

 

 

Solenoid Valve

 

 

Flow**

Up to gpm 0.2 gallons/minute,

0.65 liters/minute

 

40 in3/minute

 

Wetted materials

Zinc plated steel, carbon steel, aluminum, fluoroelastomer, polyurethane

 

 

 

Weight

4.0 lbs

1.8 kg

IP Rating

IP65K

 

Solenoid Coil

Resistance (DC) (Ohms) @ 68°F (20°C)

Initial Current Draw (Amps)

24 VDC

28.8

0.83

*Dyna-Star HP Pump Models are rated for 5000 psi (34.47 MPa, 344 bar) maximum working pressure, however, when a vent valve is installed on the HP Pump, the maximum working pressure must be reduced to 3500 psi (24.1 MPa, 241 bar).

**Flow capability depends on viscosity, type of fluid, temperature, etc.

332519F

5

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Graco 77X540 important safety instructions Parts, Technical Data, Accessories

77X540 specifications

The Graco 77X540 is a powerful and versatile airless paint sprayer designed for professionals and DIY enthusiasts looking to achieve a flawless finish in their projects. This innovative sprayer is characterized by its robust design, advanced technology, and a range of features that enhance user experience and efficiency.

One of the standout features of the Graco 77X540 is its high-efficiency airless pump, which delivers a consistent flow of paint with minimal overspray. This results in a smooth, even application that reduces the need for touch-ups and saves both time and material. The pump is designed to handle a variety of coatings, including latex, primers, and stains, making it a reliable choice for different types of jobs.

The Graco 77X540 is equipped with the SmartControl technology, which provides precise pressure control for different spray demands. This feature allows users to adjust the pressure settings on-the-fly, ensuring optimal performance across a wide range of materials and surfaces. Additionally, the unit includes a robust reversible tip, making it easy to clear clogs and continue working without interruption.

Another notable characteristic of the Graco 77X540 is its lightweight and portable design. Weighing in at just under 35 pounds, this sprayer is easy to transport from one job site to another. The durable construction ensures that it can withstand the rigors of professional use while remaining easy to operate and maintain.

For those who prioritize convenience, the Graco 77X540 features a flexible suction hose, allowing for direct painting from a paint bucket. This not only streamlines the painting process but also minimizes mess and waste. The unit also boasts a built-in pushprime feature enabling quick and easy start-up, further enhancing productivity.

Overall, the Graco 77X540 is designed with the user in mind, offering a combination of power, efficiency, and ease of use. Whether you're tackling a large residential project, commercial jobs, or smaller DIY tasks, the Graco 77X540 stands out as a reliable and effective solution for achieving a professional-grade finish. With its advanced technologies and thoughtful design, this airless paint sprayer elevates the painting experience, making it an essential tool in any painter's arsenal.