Graco Inc. 238983, 238986, 238984, 238987, 238985 Instructions–Parts List

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Instructions–Parts List

HIGH–FLO SERIES

307707ZAN

Surge Tanks

These tanks reduce fluid surging in a high– or medium–volume, low–pressure fluid system. For professional use only.

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

ENG

Model 238983, Series C

on Surge Tank Stand Kit 218742

7287B

Model 220157, Series E

on Surge Tank Stand Kit 218742

7139A

Model 233736, Series A

TI1898B

Table of Contents

Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation

All Models 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 6. .

Model 233736 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation

All Models 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Models 238983, 238984, 238985, 218509, 238985, 238986, 238987, 238988, and 220157 10.

Model 233736 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service

Models 218509, 220157 14. . . . . . . . . . . . . . . . . . . . .

Models 238983, 238984, 238985 15. . . . . . . . . . . . .

Model 233736 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Models

Parts Drawings and Lists

Model 218509 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 220157 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Models 238983, 238984, 238985, 238986,

238987, 238988 19. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 233736 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensional Drawings 21. . . . . . . . . . . . . . . . . . . . . . . . .

Stand Mounting Hole Layout 22. . . . . . . . . . . . . . . . . . . .

Technical Data 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Information 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Fluid

Part No. Series Description

238983, 238986

238984, 238987

238985, 238988

233736 A High volume, stainless steel, 1/4 bspp(f) air port, 3/4

218509 E High volume, carbon steel, 2 npt(f) inlet and outlet 600 psi (4.2 MPa, 42 bar) 220157 E Medium volume, electropolished stainless steel, 1.25

Accessory

218742 A Surge Tank Stand Kit (not used with Part No. 233736) n/a

C High volume, electropolished stainless steel, 2 npt(f) inlet

and outlet

C High volume, electropolished stainless steel, 2 in. sanitary

inlet and outlet (Tri–Clamp compatible)

C High volume, electropolished stainless steel, 1.5 in. sani-

tary inlet and outlet (Tri–Clamp compatible)

bspp(f) fluid port

npt(f) inlet, 1.25 npt(f) outlet

Working Pressure

300 psi (2.1 MPa, 21 bar)

360 psi (2.5 MPa, 25 bar)

600 psi (4.2 MPa, 42 bar)

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Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

WARNING

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

INSTRUCTIONS

 This equipment is for professional use only.

 Read all instruction manuals, tags, and labels before operating the equipment.

 Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

 Do not alter or modify this equipment. Use only genuine Graco parts and accessories.

 Check equipment daily. Repair or replace worn or damaged parts immediately.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions.

 Do not exceed the maximum working pressure of the lowest rated component in your system. See

Technical Data on page 23.

 Use fluids and solvents that are compatible with the equipment wetted parts. Refer to the

Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

 Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose

Graco hoses to temperatures above 82C (180F) or below –40C (–40F).

 Wear hearing protection when operating this equipment.

 Do not lift pressurized equipment.

 Comply with all applicable local, state, and national fire, electrical, and safety regulations.

PRESSURIZED EQUIPMENT HAZARD

Spray from the gun, hose leaks or ruptured components can splash fluid in the eyes or on the skin and cause serious injury.

 Do not stop or deflect fluid leaks with your hand, body, glove or rag.  Follow the Pressure Relief Procedure on page 9 when: you are instructed to relieve pressure;

stop spraying; clean, check or service the equipment; and install or clean fluid nozzles.

 Do not point the spray gun at anyone or at any part of the body.

 Tighten all fluid connections before operating the equipment.

 Check the hoses, tubes and couplings daily. Replace worn, damaged or loose parts immediately.

Permanently coupled hoses cannot be repaired; replace the entire hose.

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WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury.

 Ground the equipment. See Grounding on page 5.

 If there is any static sparking or you feel an electric shock while using this equipment, stop pump-

ing immediately. Do not use the equipment until you identify and correct the problem.

 Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being pumped.

 Keep the work area free of debris, including solvent, rags, and gasoline.

 Electrically disconnect all equipment in the work area.

 Extinguish all open flames or pilot lights in the work area.

 Do not smoke in the work area.

 Do not turn on or off any light switch in the work area while operating or if fumes are present.

 Do not operate a gasoline engine in the work area.

 Never use 1.1.1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or

fluids containing such solvents in pressurized aluminum equipment. Such use could result in a chemical reaction, with the possibility of explosion.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed.

 Know the specific hazards of the fluid you are using.

 Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

 Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

 Graco does not manufacture or supply the reactive chemical components that may be used in this

equipment and is not responsible for injury or property loss, damage, expense or claims (direct or consequential) that arise from the use of such chemical components.

MOVING PARTS HAZARD

Moving parts, such as the air motor piston in the pump, can pinch or amputate your fingers.

 Keep clear of all moving parts when starting or operating the pump.

 Before servicing this surge tank, follow the Pressure Relief Procedure on page 9 to prevent the

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equipment from starting accidentally.

Installation

All Models

Grounding

Ground the tank and the rest of your system. See Fire and Explosion Hazard on page 4.

Static electricity is generated by the flow of fluid through the pump and hose, but it is dissipated through proper grounding. If every part of the spray system is not properly grounded, sparking may occur, and the system may become hazardous. Sparking may also occur when plugging in or unplugging a power supply cord. Sparks can ignite fumes from solvents and the fluid being sprayed, dust particles and other flammable substances, and can cause a fire or explosion and serious injury and property damage.

If you experience any static sparking or feel even a slight shock while using this equipment, stop spraying immediately. Check for proper grounding of the entire system. Be sure you have corrected the problem before starting to spray again.

Ground the pump and all other spray equipment used or located in the spray area. The following are minimum requirements for grounding a basic spray system. Your system may include other equipment or objects which must also be grounded. Always check your local electrical code for detailed grounding instructions. Be sure your system is connected to a true earth ground.

 Object being sprayed: Ground according to local

code.

 Fluid supply container: Ground according to local

code.

 All solvent pails used when flushing must be

grounded according to local code. Use only grounded metal pails, which are conductive. Do not place the pail on any non-conductive surface, such as cardboard or paper, which would interrupt grounding continuity.

 To maintain grounding continuity when flushing or

relieving pressure, always hold a metal part of the

gun firmly to the side of a grounded metal pail, then trigger the gun.

Fig. 1

 Pump: Ground by using a ground wire and clamp

as described in your separate pump instruction manual.

 Air compressors and hydraulic power supplies:

Follow the manufacturer’s recommendations.

 All air and fluid lines: Use only grounded hoses with

a maximum of 150 m (500 ft) combined hose length to ensure grounding continuity. See Hose Grounding Continuity on page 5.

 Surge tank: Connect a ground wire and clamp as

shown in Fig. 1. Loosen the grounding screw (W). Insert one end of a 1.5 mm2 (12 ga.) minimum ground wire (Y) behind the grounding screw and tighten the screw securely. Connect the clamp end of the ground wire to a true earth ground. Order Part No. 222011 Ground Wire and Clamp.

 Spray gun: Obtain grounding through connection to

a properly grounded fluid hose and pump.

Hose Grounding Continuity

Proper hose grounding continuity is essential to maintaining a grounded spray system. Check the electrical resistance of your air and fluid hoses at least once a week. If your hose does not have a tag on it which specifies the maximum electrical resistance, contact the hose supplier or manufacturer for the maximum resistance limits. Use a resistance meter in the appropriate range for your hose to check the resistance. If the resistance exceeds the recommended limits, replace the hose immediately. An ungrounded or poorly grounded hose can make your system hazardous.

Flushing Safety

Before flushing, be sure the entire system and flushing pails are properly grounded, and be sure that pressure is relieved. See Grounding and Pressure Relief

Procedure on page 9.

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Installation

Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157

NOTE: Refer to page 8 to install Model 233736.

Installing the Tank

Use Stand Kit 218742 to mount the tank to the floor. See the Stand Mounting Hole Layout on page 22. Secure the stand (B) to the floor with M19 (5/8 in.) bolts that engage at least 152 mm (6 in.) into the concrete floor to prevent the tank from tipping.

Horizontal / Vertical Mounting

All surge tanks can by mounted horizontally or vertically.

NOTE: Model 220157 can be mounted vertically with the fluid direction flowing upward (with the fluid inlet at the bottom).

Stand Kit (See Fig. 2.)

Items J, K, and L (mentioned in the text below) are supplied with Stand Kit 218742.

Secure the bracket (J) to the leg of the stand (B) with a screw (K). Notice the different bracket positions for the three tank sizes.

Turn the bracket (J) with a wrench to align it with the bosses on the surge tank. Then secure the bracket to the tank with the screws (L).

Fluid Lines and Accessories (See Fig. 3.)

Install a fluid drain valve (H) near the surge tank outlet.

WARNING

A fluid drain valve (H) is required in your system to help reduce the risk of serious injury, including splashing fluid in the eyes or on the skin and injury from moving parts.

Opening the fluid drain valve helps relieve pressure in the surge tank, pumps, hose and gun after shutting off the system. Triggering the gun to relieve pressure may not be sufficient.

Install a fluid shutoff valve (C) before and after the surge tank to isolate it when servicing the tank. See Fig. 3.

Proper line sizing is an important part of the system. Contact your Graco distributor if you need assistance. To obtain proper flow through the system, use the proper size plumbing from the following list:

 Models 238983, 238984, 238985, 238986, 238987,

238988: Use a minimum 51 mm (2 in.) diameter

pipe and plumbing.

 Model 218509: Use a minimum 51 mm (2 in.)

diameter pipe and plumbing.

Fluid Inlet / Outlet Ports

On high-volume models (218509, 238983, 238984, 238985, 238986, 238987, and 238988), either port may be used as the fluid inlet. The direction of fluid flow through these models does not affect the performance. See the Dimensional Drawings on page 21.

CAUTION

The inlet and outlet adapter fittings on Models 238983, 238984, and 238985 (Ref. No. 3 on page

20) use a non-standard thread to fit into the fluid cover (Ref. No. 1 on page 20). You must use Gracoapproved fittings to prevent thread damage. Contact your Graco distributor for optional fittings.

 Model 220157: Use a minimum 25 mm (1 in.)

diameter flexible hose between the pump and tank

and a hard or flexible pipe after the tank.

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Installation

Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157

Stand Kit

Model 220157

Fig. 2

KEY

A Surge tank B Stand C Fluid shutoff valve D Fluid line E Mix tank F High-Flo pump G Ground wire* H Fluid drain valve* J Bleed-type master air valve*

* Required for safe operation.

Must be purchase separately.

Typical Installation

F G*

Models 218509, 238983, 238984, 238985, 238986, 238987, 238988

7140B

NOTE: This installation is only a guide for selecting and installing a system; it is not an actual system design. Contact your Graco distributor for assistance in designing a system to suit your needs.

Fig. 3

7141B

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Installation

Model 233736

Model 233736 surge tank (A) must be installed horizontally (see Fig. 4).

Install the surge tank on a short riser tube (B) off the fluid supply line (D). The air inlet must face up.

Install an air pressure regulator (M) and a ball valve (N) on the air supply line (P) to the surge tank. The air regulator controls the air pressure in the tank. The ball valve prevents air from escaping from the tank during operation.

Typical Installation

KEY

A Surge tank B Riser tube C Fluid shutoff valve D Fluid line E Mix tank F High-Flo pump G Ground wire* H Fluid drain valve* J Bleed-type master air valve* M Air regulator N Air shutoff valve P Air line to surge tank R Priming valve S Fluid drain line T Fluid valve U Pump air regulator

* Required for safe operation.

Must be purchased separately.

Fig. 4

F G*

Install a fluid valve (T) on the riser tube (B). Close this valve to allow maintenance of the surge tank while fluid continues to flow in the main fluid supply line.

Remove the plug (12) and install a fluid priming valve (R) and drain line (S), for use in bleeding air from the fluid section.

N A

TI1913B

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