System Accessories, Installation | Graco 239-327, Series A specification

Installation

System Accessories

WARNING

A bleed-type master air valve (D) and a fluid drain valve (J) are required in your system. These accessories help reduce the risk of serious injury including fluid injection, splashing in the eyes or on the skin, and injury from moving parts if you are adjusting or repairing the pump.

The bleed-type master air valve relieves air trapped between this valve and the pump after the air is shut off. Trapped air can cause the pump to cycle unexpectedly. Locate the valve close to the pump. Order Part No. 113±333.

The fluid drain valve assists in relieving fluid pres- sure in the displacement pump, hose, and gun. Triggering the gun to relieve pressure may not be sufficient. Order one of the following:

Part No. Description

238±635 1/4 npt (mbe), carbon steel 210±657 1/4 npt (mbe), carbon steel 210±658 3/8 npt (mbe), carbon steel 210±659 1/4 npt x 3/8 npt (mbe), carbon steel 239±018 1/4 npt (mbe), stainless steel 235±992 1/4 npt x 3/8 npt (mbe), stainless steel

Air and Fluid Hoses

Be sure all air and fluid hoses are properly sized and pressure-rated for your system. Use only electrically conductive air and fluid hoses. Use a 13 mm (1/2 in.) I.D. (minimum) air hose (H) to supply air to the pump.

Fluid hoses must have spring guards on both ends. Connect a fluid hose (L) to the pump's 3/8 npt(f) fluid outlet. Use of a short whip hose between the main fluid hose and the gun (M) allows freer gun movement. Connect a fluid suction hose or tube (N) to the pump's 3/4 npt(m) fluid intake.

Air Line Accessories

Install the following accessories in the order shown in Fig. 2, using adapters as necessary:

DAir line lubricator (C)

Provides automatic air motor lubrication.

DBleed-type master air valve (D)

Required in your system to relieve air trapped between it and the air motor when the valve is closed (see the WARNING at left). Be sure the bleed valve is easily accessible from the pump, and is located downstream from the air regulator (E).

DAir regulator (E)

Controls pump speed and outlet pressure by adjusting the air pressure to the pump. Locate the regulator close to the pump, but upstream from the bleed-type master air valve (D).

DPump runaway valve (R)

Senses if the pump is running too fast and shuts off the air supply to the motor. A pump which runs too fast can be seriously damaged.

DAir line filter (F)

Install an air line filter (F) and a moisture trap and drain valve (P) to help remove moisture and contaminants from the compressed air supply.

DSecond bleed-type air valve (G)

Isolates the air line accessories for servicing. Locate upstream from all other air line accessories.

Fluid Line Accessories

Install the following accessories in the positions shown in Fig. 2, using adapters as necessary:

DFluid drain valve (J)

Required in your system to relieve fluid pressure in the hose and gun (see the WARNING at left). Install the drain valve so that it points down and the handle points up when it is opened.

DFluid filter (K)

Filters harmful particles from the fluid.

DSpray gun (M)

Dispenses the fluid. The gun shown in Fig. 2 is an airless spray gun.

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239-327, Series A specifications

Graco is a renowned manufacturer known for its high-quality spray equipment and pumps, catering to both professionals and DIY enthusiasts. Their diverse lineup includes advanced models such as Series A, Series C, Model 237069, Model 289310, and Model 238620, each uniquely engineered to meet various painting and coating applications.

The Graco Series A is an outstanding choice for smaller projects. Its lightweight design and portability make it ideal for residential touch-ups, woodworking, and other small-scale applications. This series boasts a simple setup with an easy-to-use spray gun that enables users to achieve a smooth, even finish. Equipped with Graco’s ProConnect technology, Series A allows for quick pump replacement without any tools, ensuring minimal downtime during projects.

The Graco Series C offers enhanced performance and greater versatility for larger applications. This series is designed for professional contractors and serious DIYers, featuring robust construction and advanced technology. With a higher flow rate and pressure capabilities, Series C can handle more demanding projects such as residential and commercial buildings. Additionally, it incorporates SmartControl technology, electronically controlling pressure to provide consistent spray patterns regardless of the fluid being used.

Model 237069 is another exceptional option known for its compact design and efficiency. This electric airless sprayer is perfect for various interior and exterior applications, standing out due to its ease of operation. It features a reversible spray tip, allowing users to quickly clear clogs, and the adjustable pressure settings provide flexibility for different surface textures. Model 237069 is engineered for durability, making it a reliable choice for frequent use.

Model 289310 is engineered for professionals who prioritize speed and precision. This heavy-duty sprayer is equipped with an advanced hydraulic system, which ensures a consistent flow of material. Its larger hopper capacity minimizes the need for frequent refills, allowing users to complete extensive projects faster. Furthermore, the model includes an ergonomic design that reduces fatigue, empowering operators to work longer with comfort.

Lastly, Model 238620 exemplifies Graco’s commitment to innovation in airless technology. This model features an integrated digital display that offers real-time feedback and monitoring, enhancing overall user experience. With its streamlined pump design and advanced filter system, Model 238620 is capable of handling a wide range of coatings, from thin stains to thick latex paints.

In conclusion, Graco's Series A, Series C, Model 237069, Model 289310, and Model 238620 represent the brand’s dedication to quality, performance, and user-friendliness. These models cater to various project sizes and requirements, making them valuable assets for both amateurs and seasoned professionals in the painting industry.