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308178F
ENG
WARNING
Hazard of Using Fluids Containing Halogenated Hydrocarbons
Never use 1.1.1–trichloroethane, methylene
chloride, other halogenated hydrocarbon solvents
or fluids containing such solvents in aluminum
models 224892 or 224893. Such use could result
in a chemical reaction, with the possibility of
explosion, which could cause death, serious bodily
injury, and/or substantial property damage.
Consult your fluid suppliers to ensure that the fluids
being used are compatible with aluminum and zinc
parts.
0903
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
WARNING
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.
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.
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 Do not exceed the maximum working pressure of the lowest rated component in your system.
See Technical Data on page 16.
D 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.
D 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).
D Wear hearing protection when operating this equipment.
D Do not lift pressurized equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
2308178
WARNING
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 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.
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 Ground the equipment. See Grounding on page 4.
D If there is any static sparking or you feel an electric shock while using this equipment, stop
pumping 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 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.
D 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.
MOVING PARTS HAZARD
Moving parts, such as the air motor piston in the pump, can pinch or amputate your fingers.
D Keep clear of all moving parts when starting or operating the pump.
D Before servicing this surge tank, follow the Pressure Relief Procedure on page 4 to prevent
the equipment from starting accidentally.
United States Government safety standards have been adopted under the Occupational Safety and Health Act.
You should consult these standards––particularly the General Standards, Part 1910.
308178
3
Installation
System Pressure
The maximum fluid working pressure of this surge
suppressor is 100 psi (0.7 MPa, 7 bar) at 100 psi
(0.7 MPa, 7 bar) incoming air pressure. Never exceed
100 psi (0.7 MPa, 7 bar) fluid or air pressure to the
surge suppressor. Do not exceed the maximum
working pressure of any component or accessory used
in the system.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
To reduce the risk of serious bodily injury, including
splashing fluid or solvent in the eyes or on the skin,
always follow this procedure before you check,
adjust, clean, or repair any part of the system.
1. Close the air regulator by turning counterclockwise
as far as possible.
2. Disconnect the air supply line to the surge
suppressor.
and other flammable substances, whether you are
pumping indoors or outdoors, and can cause a fire or
explosion and serious bodily injury and property
damage.
If you experience any static sparking or even a slight
shock while using this equipment, stop pumpingimmediately. Do not use the system again until the
problem has been identified and corrected.
To reduce the risk of static sparking, ground the pump,
surge suppressor, and all other equipment used or
located 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 Pump: See your separate pump instruction
manual.
D Surge suppressor: Secure a ground wire (Y) to the
surge suppressor with the grounding screw (Z)
located on the side of the housing. See 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. 208950.
3. Open the dispensing valve, if used.
4. Open the fluid drain valve to relieve all fluid
pressure; have a container ready to catch the
drainage.
Fluid Compatibility
Be sure all fluids and solvents used are chemically
compatible with the wetted parts and non-wetted parts
shown in the Technical Data section on page 16.
Failure of the diaphragm may cause non-wetted parts
to be exposed to fluid. Always read the fluid and
solvent manufacturer’s literature before using them
with this equipment.
Grounding
WARNING
This equipment must be grounded. Read and
carefully follow the text of FIRE AND EXPLOSIONHAZARD on page 3 before operating the surge
suppressor.
D Air and fluid hoses: Use only grounded hoses with
a maximum of 500 ft (150 m) combined hose length
to ensure grounding continuity.
D Air compressor: Follow the manufacturer’s
recommendations.
D All solvent pails used when flushing: Follow the
local code. Use only metal pails, which are
conductive. Do not place the pail on a
nonconductive surface, such as paper or
cardboard, which interrupts the grounding
continuity.
D Fluid supply container: Follow the local code.
Y
Z
Static electricity is created by the fluid flowing through
the pump and hose. If the equipment is not properly
grounded, sparking may occur, and the system may
become hazardous. Sparks can ignite fumes from
solvents and the fluid being pumped, dust particles,
4308178
Fig. 1
0942
Installation
The installation shown below is only a guide for selecting and installing system components; it is not an actual
system design. Contact your Graco distributor for assistance in planning a system to suit your needs.
KEY
ASurge suppressor
BAir pressure gauge
CFluid supply line
DFluid outlet line
EAir supply line
FHusky 715 pump
G Fluid drain valve
HBleed-type master air valve
(required for pump and surge
suppressor)
HJKL
F
JAir regulator
KAir Filter
LBleed-type master air valve
(for accessories)
M Surge suppressor ground wire
(required)
NPump ground wire
(required)
G
N
C
E
DETAIL A: Venting Exhaust Air to a Remote Container
grounded air exhaust hose
muffler
M
AB
D
container
for remote
air exhaust
308178
0906
5
Installation
General Information
The surge suppressor uses air pressure and a
diaphragm to maintain a consistent fluid outlet
pressure from a double diaphragm or low-pressure
reciprocating pump. During normal flow, the
suppressor air pressure and fluid pressure are in
equilibrium. A sharp increase in fluid pressure causes
the air inlet port to open, increasing air pressure on the
diaphragm and returning the system to equilibrium.
Conversely, a sharp decrease in fluid pressure causes
the air exhaust port to open, decreasing air pressure
on the diaphragm and allowing the system to return to
equilibrium.
Installation
1. Read this entire manual before installing or
operating the surge suppressor.
2. The surge suppressor fluid inlet must be
connected to the pump’s fluid outlet. If the pumpis aluminum or steel, the surge suppressor may
be plumbed directly to the outlet, using 3/4 npt
fittings. If the pump is acetal or polypropylene,
place the surge suppressor on the floor or some
other solid, level surface near the pump, and
connect the surge suppressor inlet to the pump
outlet with a 3/4” ID hose and 3/4 npt fittings.
CAUTION
Air Exhaust Ventilation
WARNING
Be sure to read TOXIC FLUID HAZARD and FIRE
AND EXPLOSION HAZARD on page 3, before
operating this equipment.
Be sure the system is properly ventilated for your
type of installation. When pumping flammable or
hazardous fluids, you must vent the surge suppressor exhaust air to a safe place, away from people,
animals, food handling areas, and all sources of
ignition. If the diaphragm ruptures, the fluid will be
exhausted along with the air. Place a container at
the end of the air exhaust line to catch the fluid.
See Detail A on page 5.
The minimum size for the air exhaust hose is 3/8 in.
(10 mm) ID x 15 ft (4.6 m). If a longer hose is required,
use a larger diameter hose.
1. Remove the muffler from the surge suppressor
exhaust port. Install an exhaust hose in the
exhaust port, and connect the muffler to the other
end of the hose. Avoid sharp bends or kinks in the
hose. See Detail A on page 5.
2. Place a container at the end of the air exhaust line
to catch fluid in case the diaphragm ruptures.
Do not plumb the surge suppressor directly onto the
fluid outlet of an acetal or polypropylene pump.
Those pumps cannot support the weight of the
suppressor and will suffer damage or rupture.
3. Connect an air line from the pump’s air regulator to
the air inlet of the surge suppressor. In systems
using a 1:1 ratio pump, the air pressure supplied to
the suppressor will be the same as that supplied to
the pump.
4. Use a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air
or fluid leaks.
CAUTION
To avoid pump damage, do not overtighten the
fittings to the pump.
WARNING
Never operate the surge suppressor without the
muffler or an air exhaust line installed in the air
exhaust port. If the air exhaust port is left open and
the diaphragm shaft works loose from the bolt, the
shaft could be propelled out of the housing, causing injury.
6308178
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