Graco Inc 750, 239124, 239092, 239134, 239131 User Manual
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Instructions–Parts List
Huskyt750 and Huskyt2000
Surge Suppressors
For control of pressure fluctuations and acceleration loss,
preventing cavitation. For professional use only.
120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure
120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure
See the Model Numbers on page 12.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
308703G
ENG
06887
Model 239088 Model 239096Model 239095 Model 239126Model 239091
06891
06888
06892
06894
Table of Contents
Symbols
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Numbers 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Matrix 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Drawings 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 18. . . . . . . . . . . . . . . . . . . . . .
Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
INSTRUCTIONS
D This equipment is for professional use only.
D Read all instruction manuals, tags, and labels before operating the equipment.
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Do not exceed the maximum working pressure of the lowest rated component in your system. This
equipment has a 120 psi (0.8 MPa, 8 bar) maximum working pressure and 120 psi (0.8 MPa,
8 bar) maximum incoming air pressure.
D Solvent Compatibility:
– Use fluids and solvents which are compatible with the equipment wetted parts.
– Use only compatible solvents to clean all plastic parts. Many solvents can degrade plastic
parts to the point where they could fail.
Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent
manufacturer’s warnings.
D Do not use hoses to pull equipment.
D Do not lift pressurized equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
D Do not operate outside the minimum and maximum operating temperature of your surge
suppressor unit. See Minimum and Maximum Operating Temperatures on page 7.
2 308703
WARNING
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.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
D Pipe and dispose of the exhaust air safely, away from people, animals, and food handling areas. If
the diaphragm fails, the fluid is exhausted along with the air.
D Never use an acetal pump to pump acids. Take precautions to avoid acid or acid fumes from
contacting the pump housing exterior. Stainless steel parts will be damaged by exposure to acid
spills and fumes.
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.
D Charge the surge suppressor with compressed air or nitrogen only. Do not use oxygen. Such
use could result in an explosion.
D Never pump flammable fluids with polypropylene units.
D Ground the equipment. Refer to Grounding on pages 4 and 5.
D Never use a polypropylene pump or surge suppressor with non-conductive flammable fluids as
specified by your local fire protection code. Refer to Grounding on pages 4 and 5 for additional
information. Consult your fluid supplier to determine the conductivity or resistivity of your fluid.
D 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.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being pumped.
D Pipe and dispose of the exhaust air safely, away from all sources of ignition.
D Keep the work area free of debris, including solvent, rags, and gasoline.
D Electrically disconnect all equipment in the work area.
D Extinguish all open flames or pilot lights in the work area.
D Do not smoke in the work area.
D Do not turn on or off any light switch in the work area while operating or if fumes are present.
D Do not operate a gasoline engine in the work area.
308703 3
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
When pumping flammable fluids, the
surge suppressor must be grounded.
Before pumping, ground the system as
explained below. Also read the section
FIRE OR EXPLOSION HAZARD on
page 3.
Polypropylene surge suppressors are not
conductive. Attaching the ground wire to the
grounding lug grounds only the clamp or flange
(see Fig. 1). When pumping conductive flammable
fluids, always ground the entire fluid system by
making sure the fluid has an electrical path to a
true-earth ground.
To reduce the risk of static sparking, ground the surge
suppressor and all other equipment in the pumping
area. Check your local electrical code for detailed
grounding instructions for your area and type of equipment. Ground all of this equipment:
D Surge suppressor: Attach a ground wire to the
grounding lug (2) as shown in Fig. 1. Connect the
clamp end of the ground wire to a true earth
ground. To order a ground wire and clamp, order
Part No. 222011.
NOTE: To connect the ground wire to the surge
suppressor, first remove the copper connector from
the non-clamp end of the ground wire and discard
it, then push the bare wire through the grounding
lug on the surge suppressor.
D Fluid supply container: Follow your local code.
23
Fig. 1
NOTE: When pumping conductive flammable fluids
with a surge suppressor, always ground the entire
fluid system. See the WARNING at left. Fig. 2
shows recommended methods of grounding fluid
containers during filling. These are only guides;
contact your Graco distributor for assistance in
grounding your system.
D Air compressor: Follow the manufacturer’s
recommendations.
D Solvent pails used when flushing: Follow your local
code. Use only grounded metal pails, which are
conductive. Do not place the pail on a
non-conductive surface, such as paper or
cardboard, which interrupts the grounding
continuity.
2
4 308703
Grounding a Surge Suppressor
A Husky pump
B Husky surge suppressor
H Fluid drain valve (required)
S Dispense valve
T Fluid drain line
W Surge suppressor ground wire (required)
See page 4 for installation instructions.
Y Air motor ground wire (required)
Z Container ground wire (required)
Hose must be conductive.
1
Dispense valve nozzle must be in
2
contact with the container.
Y
Installation
air supply
connection
B
W
A
1
H
T
2
S
Z
Z
06895
2
S
1
air supply
connection
H
B
T
W
Z
A
Y
Fig. 2
Z
06896A
308703 5
Installation
The installations in Fig. 2 are guides for selecting and installing system components. Contact your Graco distributor
for assistance in planning a system to suit your needs.
Mounting Automatic and Manual Models
Be sure the mounting surface can support the weight of the pump, surge suppressor, hoses, and accessories, and
the stress caused during operation.
D Mount the surge suppressor as close to the pump discharge as possible and upstream of equipment such as
valves, meters, filters, and so on. The surge suppressor should be installed within 10 pipe diameters of the
pump discharge.
D If you use a flexible connector from the pump to the piping system, the surge suppressor should be mounted to
the pump discharge manifold, and the flexible connector should be attached to the surge suppressor tee and
system piping.
D Because pressure is equal in all directions, the surge suppressor can be installed in any position, but the vertical
position shown in Fig. 2 is recommended for better draining. Fluids with high specific gravity or high viscosity,
settling of heavy material, and possible air entrapment further limit the mounting positions other than those
shown in Fig. 2.
NOTE: When you mount a plastic surge suppressor, do not overtighten by using a large pipe wrench near the
threads of the fluid inlet. The housing may crack if tightened too much. Hand tightening is recommended.
Connecting Automatic Models
D Connect the 1/4-in air supply hose to the 1/4 npt
connection on the top of the surge suppressor.
D The air pressure to the surge suppressor must be
greater than or equal to the pump discharge and/or
system pressure. For equal air pressure, you can
use a tee in the pump’s air supply line to run an air
line to the surge suppressor.
D For models with elastomer bladders, the tee must
be located in the pump’s air supply line before any
pump controller or instrumentation such as the
filter, regulator, or pump control valve.
D For models with PTFE bellows, the tee must be
located in the pump’s air supply line after any pump
controller or instrumentation such as the filter,
regulator, or pump control valve.
Connecting Manual Models
D Connect the 1/4-in air supply hose to the brass
one-way check valve on the top of the surge suppressor.
D The air pressure to the surge suppressor must be
greater than or equal to the pump discharge and/or
system pressure. For equal air pressure, you can
use a tee in the pump’s air supply line to run an air
line to the surge suppressor.
D The tee must be located in the pump’s air supply
line before any pump controller or instrumentation
such as the filter, regulator, or pump control valve.
6 308703
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