Instructions
Air-Operated
Diaphragm Pumps
308981ZAE
For fluid transfer applications. For professional use only.
Only models marked with (*) are approved for use in European explosive atmosphere
locations.
100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
ACETAL, POLYPROPYLENE, AND PVDF
Husky™ 515
Model No. D 5 1 _ _ _ Acetal NPT Pumps*
Model No. D 5 2 _ _ _ Polypropylene Pumps
Model No. D 5 5 _ _ _ PVDF NPT Pumps
Model No. D 5 A _ _ _ Acetal BSPT Pumps*
Model No. D 5 B _ _ _ Polypropylene BSPT Pumps
Model No. D 5 E _ _ _ PVDF BSPT Pumps
For Additional Models, see Table of Contents
Husky 515
ALUMINUM AND STAINLESS STEEL*
EN
9065A
Husky™ 716
Model No. D 5 3 _ _ _ AluminumNPT Pumps
Model No. D 5 4 _ _ _ Stainless Steel NPT Pumps
Model No. D 5 C _ _ _ AluminumBSPT Pumps
Model No. D 5 D _ _ _ Stainless Steel BSPT Pumps
For Additional Models, see Table of Contents
*These models are certified.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Refer to the Pump Matrix on page 22 to determine the
model number of your pump.
9246A
Husky 716
Table of Contents
INSTRUCTIONS
Symbols
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Husky 515 and Husky 716 Pump Matrix . . . . . . . 22
Husky 515 and Husky 716 Repair Kits . . . . . . . . . 22
Husky 515 and Husky 716 Common Parts . . . . . 24
Husky 716 Parts Drawing . . . . . . . . . . . . . . . . . . . 27
Torque Sequence . . . . . . . . . . . . . . . . . . . . . . . . . 29
Husky 515 Technical Data . . . . . . . . . . . . . . . . . . 30
Husky 515 Dimensions . . . . . . . . . . . . . . . . . . . . . 31
Husky 716 Technical Data . . . . . . . . . . . . . . . . . . 32
Husky 716 Dimensions . . . . . . . . . . . . . . . . . . . . . 33
Husky 515 and 716 Performance Charts . . . . . . . 34
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.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
• 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.
• Do not exceed the maximum working pressure of the lowest rated com ponent in your system. This
equipment has a 100 psi (0.7 MPa, 7 bar) maximum working pressure at 100 psi (0.7 MPa, 7
bar) maximum incoming air pressure.
• 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 par ts, 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.
• Do not kink or overbend hoses or use hoses to pull equipment.
• Comply with all applicable local, state, and national fire, electrical, and safety regulations.
• Do not use 1.1.1-trichloroethane, methylene chloride, other halogena ted hydro carbon solvents or
fluids containing such solvents in pressurized aluminum equipment. Such use could r esult in a
chemical reaction, with the possibility of explosion.
2 308981
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.
• Know the specific hazards of the fluid you are using.
• Do not lift a pump under pressure. If dropped, the fluid section may rupture. Always follow the
• Pressure Relief Procedure on page 10 before lifting the pump.
• Store hazardous fluid in an approved container. Dispose of hazardo us fluid according to all local,
state, and national guidelines.
• Always wear protective eyewear, gloves, clothing, and respirator as recommended by the flu id and
solvent manufacturer.
• 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. Read Air Exhaust Ventilation on
page 6.
• Never use an acetal pump to pump acids. Take precautions to avoid acid or acid fumes from con-
tacting 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.
• Ground the equipment. Refer to Grounding on page 8.
• Never use a polypropylene or PVDF pump with non-conductive flammable fluids as specified by
your local fire protection code. Refer to Grounding on page 8 for additional information. Consult
your fluid supplier to determine the conductivity or resistivity of your fluid.
• 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 solve nts or the fluid being
pumped.
• Pipe and dispose of the exhaust air safely, away from all sources of ignition. If the diaphr agm fails,
the fluid is exhausted along with the air. Read Air Exhaust Ventilation on page 6.
• 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.
• Keep a fire extinguisher in the work area.
308981 3
General Information
Installation
• The Typical Installations in Fig. 2 are only guides for
selecting and installing system components. Contact your Graco distributor for assistance in planning
a system to
suit your needs.
• Always use Genuine Graco Parts and Accessories .
• Use a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air or
fluid leaks.
Tightening Threaded Fasteners Before First Use
Before using the pump for the first
retorque all external fasteners. See Torque Sequence,
page 29. After the first day of operation, retorque the
fasteners. Although pump use varies, a general guideline is to retorque fasteners every two months.
Toxic Fluid Hazard
Read TOXIC FLUID HAZARD on
page 3.
time, check and
CAUTION
Safe Operating Temperatures
Minimum (all pumps): 40°F (4°C)
Maximum
Acetal: 180°F (82°C)
Polypropylene: 150°F (66°C)
Aluminum, stainless steel, PVDF: 225°F (107°C)
These temperatures are based upon mechanical stress
only and may be significantly altered by pumping certain
chemicals. Consult engineering guides for chemical
compatibilities and temperature limits, or contact your
Graco distributor.
Mountings
• These pumps can be used in a variety of installa-
tions. Be sure the mounting surface can support the
weigh
t of the pump, hoses, and accessories, as well
as the stress caused during operation.
• Fig. 2 shows some installation examples. On all
installations, mount the pump using screws and
nuts.
Use fluids and solvents that are compatible with the
ment wetted parts. Refer to the Technical Data
quip
e
section of all equipment manuals. Read the fluid and
solvent manufacturer’s warnings.
Pumping High-De
High density fluids may prevent the lighter non-metallic
k valve balls from seating properly, which reduces
chec
pump performance significantly. Stainless steel balls
should be used for such applications.
Split Manifolds
Plastic Split Manifold Kits are available to enable you to
pump two flu
the pump. To order a Split Manifold Kit, use the Part No.
from the list below:
241240 polypropy
241241 acetal; split inlet
1242 PVDF; sp
24
241243 polyp
241244 ac
241245 PVDF; sp
nsity Fluids
ids simultaneously or to mix two fluids in
lene; split
lit inlet
ropylene; split outlet
etal; split outlet
lit outlet
inlet
4 308981
Installation
Air Line
WARNING
A bleed-type master air valve (B) is required in your system to relieve air trapped between this valve and the
pump. See Fig. 2. Trapped air can cause the pump to
cycle unexpectedly, which could result in serious injury,
including splashing in the eyes or on the skin, injury
from moving parts, or contamination from hazardous fluids.
CAUTION
The pump exhaust air may contain contaminants. Ventilate to a remote area if the contaminants could affe ct
your fluid supply. Read Air Exhaust Ventilation on
page 6.
Installation of Remote Pilot Air Lines
1. Refer to Parts Drawings. Connect air line to pump
as in preceding steps.
2. Connect 1/4 in. O.D. tubing to push type connectors
(16) on underside of pump.
NOTE: by repla
sizes or types of fittings may be used. The new fittings
will require 1/8 in. npt threads.
3. Connect remaining ends of tubes to external air signal, such as Gr
Cycleflo II (P/N195265) controllers.
NOTE: the air pressure at the
least 30% of the air pressure to the air motor for the pump
to operate.
cing the push type connectors, other
aco’s Cycleflo (P/N 195264) or
connectors must be at
Fluid Suction Line
1. Install the air line accessories as shown in Fig. 2.
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the accessories is electrically conductive.
a. The fluid pressure can be controlled in either of
two ways. To control it on the air side, install an
air regulator (G). To control it on the fluid side,
install a fluid regulator (J) near the pump fluid
outlet (see Fig. 2).
b. Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. Read the WARNING above. Locate the
other master air valve (E) upstream from all air
line accessories and use it to isolate them
during cleaning and repair.
c. The air line filter (F) removes harmful dirt and
moisture from the compressed air supply.
2. Install an electrically conductive, flexible air hose (C)
between the accessories and the 1/4 npt(f) pump air
inlet. Use a minimum 1/4 in. (6.3 mm) ID air hose.
Screw an air line quick disconnect coupler (D) onto
the end of the air hose (C), and screw the mating fitting into the pump air inlet snugly. Do not connect the
coupler (D) to the fitting yet.
If using a conductive (acetal) pump, use conductive
•
hoses. If using a non-conductive pump, ground the
fluid system. Read Grounding on page 8. The fluid
inlet port is 1/2 in. or 3/4 in.
• At inlet fluid pressures greater than 15 psi (0 .1 MPa, 1
bar), diaphragm life will be shortened.
Fluid Outlet Line
WARNING
A fluid drain valve (H) is required in your system to
relieve pressure in the hose if it is plugged. See Fig. 2.
The drain valve reduces the risk of serious injury,
including splashing in the eyes or on the skin, or contamination from hazardous fluids when relieving pressure. Install the valve close to the pump fluid outlet.
1. Use electrically conductive fluid hoses (K). The
pump fluid outlet is 1/2 in. or 3/4 in. Screw the fluid
fitting into the pump outlet snugly. Do not overtighten.
2. Install a fluid regulator (J) at the pump fluid outlet to
control fluid pressure, if desired (see Fig. 2). See
Air Line, step 1a, for another method of controlling
pressure.
3. Install a fluid drain valve (H) near the fluid outlet. Read
the WARNING above.
308981 5
Installation
1
2
1
2
3
3
9073A
Install valve between fluid inlet and outlet ports.
Connect fluid inlet line here.
Connect fluid outlet line here.
Read TOXIC FLUID HAZARD on
page 3.
Read FIRE AND EXPLO-
SION HAZARD on page 3.
Fluid Pressure Relief Valve
CAUTION
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose. See Fig. 1.
Thermal expansion of fluid in the outlet line can cause
overpressurization. This can occur when using long fluid
lines exposed to sunlight or ambient heat, or when
pumping from a cool to a warm area (for example, from
an underground tank).
Overpressurization can also occur if the Husky pu m p is
being used to feed fluid to a piston pump, and the intake
valve of the piston pump does not close, causing fluid to
back up in the outlet line.
Air Exhaust Ventilation
Be sure the system is properly ventilated for your type of
installation. You must vent the exhaust to a safe place,
away from people, animals, food handling are as, and all
sources of ignition when pumping flammable or hazardous fluids.
Diaphragm failure will cause the fluid being pumped to
exhaust with the air. Place an appropriate container at
the end of the air exhaust line to catch the fluid. See Fig.
2.
The air exhaust port is 3/8 npt(f). Do not restrict the air
exhaust port. Excessive exhaust restriction can cause
erratic pump operation.
See Venting Exhaust Air in Fig. 2. Exhaust to a remote
location as follows:
Fig. 1
1. Remove the muffler (W) from the pump air exhaust
rt.
po
Install an electrically conductive air exhaust hose (X)
2.
and connect the muffler to the other end of the hose.
The minimum size for the air exhaust hose is 3/8 in.
(10 mm) ID. If a hose longer than 15 ft (4.57 m) is
required, use a larger diameter hose. Avoid sharp
bends or kinks in the hose.
3. Place a container (Z) at the end of the air exhaust
line to catch fluid in case a diaphragm ruptures. See
Fig. 2.
6 308981
Installation
9074A
H
J
A
C
D
K
L
M
N
Y
E
9075A
H
A
C
D
K
L
Y
9076A
A
E
K
P
R
S
T
U
V
Y
H
C
D
F
G
B
F
W
X
Z
04054
G
9074A
H
J
A
C
D
K
L
M
N
Y
E
9075A
H
A
C
D
K
L
Y
9076A
A
E
K
P
R
S
T
U
V
Y
H
C
D
F
G
B
F
W
X
Z
04054
G
KEY
APump
B Bleed-type master air valve (required for
pump)
C Electrically conductive air supply line
D Air line quick disconnect
E Master air valve (for accessories)
F Air line filter
G Pump air regulator
H Fluid drain valve (required)
J Fluid regulator ( optional)
K Electrically conductive fluid supply hose
L Fluid suction line
M Underground storage tank
N Wall mounting bracket
Y Ground wire (required; see page 8 for
installation instructions)
ABOVE-GROUND TRANSFER INSTALLATION
55-GALLON BUNG PUMP INSTALLATION
KEY
APump
C Electrically conductive air supply line
D Air line quick disconnect
H Fluid drain valve (required)
K Electrically conductive fluid supply hose
L Fluid suction line
Y Ground wire (required; see page 8 for
installation instructions)
AIR SPRAY INSTALLATION
KEY
APump
C Electrically conductive air line to pump
E Gun air line shutoff valve
F Air line filter
G Gun air regulator
H Fluid drain valve (required)
K Electrically conductive fluid supply hose
P Circulating valve
R Electrically conductive air line to gun
S Air spray gun
T Electrically conductive fluid return line
U 5-gallon pail
V Agitator
Y Ground wire (required; see page 8 for installation
instructions)
VENTING EXHAUST AIR
KEY
W Muffler
X Electrically Conductive Air Exhaust Hose
Z Container for Remote Air Exhaust
All wetted and non-wetted pump parts must be
compatible with the fluid being pumped.
Fig. 2
308981 7
Installation
9079A
2
A
H
S
T
Z
1
2
1
Y
Y
GROUNDING A PUMP
Hose must be conductive.
Dispense valve nozzle must be in contact with container.
KEY
APump
H Fluid drain valve (required)
S Dispense valve
T Fluid drain line
Y Fluid section grounding via grounding strip or grounding
screw (required for metal and acetal pumps)
Z Container ground wire (required)
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before operat-
e pump, ground the system as
ing th
explained below. Also read the section FIRE
AND EXPLOSION HAZARD on page 3.
The acetal Husky 515 pump contains stainless steel
fibers, which makes the wetted parts conductive.
Attaching the ground wire to the grounding screw (106)
grounds the wetted parts. See grounding screw on
page 25.
The metal Husky 716 pumps have a grounding strip
connecting the vee clamps (109). Attach a ground wire
to the grounding strip with the screw, lockwasher, and
nut as shown in the Grounding Detail on page 27.
The polypropylene and PVDF Husky 515 pumps are not
conductive.
When pumping conductive flammable fluids, always
ground the entire fluid system by making sure the fluid
system has an electrical path to a true earth ground (see
Fig. 3). Never use a polypropylene or PVDF pump with
non-conductive flammable fluids as specified by your
local fire protection code.
Ground all of this equipment:
• Pump: The metal pump has a grounding strip in
front of the center housing. The acetal pump has a
grounding screw on the top manifold. Connect the
non-clamp end of the ground wire to the grounding
strip or grounding screw, and connect the clamp
end of the ground wire to a true earth ground. To
order a ground wire and clamp, order Part No.
222011.
• Air and fluid hoses: Use only electrically conductive
hoses.
• Air compressor: Follow the manufacturer’s recom-
mendations.
• Solvent pails used when flushing: Follow the local
code. Use only grounded metal pails, which are conductive. Do not place the pail on a non-conductive
ace, such as paper or cardboard, which interrupts
surf
the grounding continuity.
• Fluid supply container: Follow the local code.
US Code (NFPA 77 Static Electricity) recommends a
conductivity greater than 50 x 10
-12
(mhos/meter) over your operating temperature range to
reduce the hazard of fire. Consult your fluid supplier to
determine the conductivity or resistivity of your fluid. The
resistivity must be less than 2 x 10
To reduce the risk of static sparking, ground the pump
and all other equipment used or located in the pumping
area. Check your local electrical code for detailed grounding instructions for your ar
ea and type
NOTE: When pumping conductive flammable fluids with
polypropylene or PVDF pump, always ground the fluid
a
system. See the WARNING above. Fig. 3 shows a recommended method of grounding flammable fluid containers during filling.
Siemans/meter
12
ohm-centimeters.
of equipment.
8 308981
Fig. 3
Installation
1
1
109
9065A
1 109
Torque to 80 to 90 in-lb (9 to 10 NSm). See Torque
Sequence, page 29.
outlet
inlet
Torque to 80 to 90 in-lb (9 to 10 NSm). See Torque
Sequence, page 29.
outlet
inlet
Changing the Orientation of the Fluid Inlet
and Outlet Ports (Husky 515)
You can change the orientation of the fluid inlet and outlet ports by repositioning the manifolds. For Husky 515,
see Fig. 4. For Husky 716, see Fig. 5.
su
1. Relieve the pressure. See Pres
Relief Procedure on page 10.
2. Remove the four manifold nuts (109) or bolts (105).
3. Turn the manifold to the desired position, reinstall
the nuts or bolts, and torque to 80 to 90 in-lb (9 to 10
NSm). See Torque Sequence, page 29.
all manifold o-rings are posi-
NOTE: Make sur
e
tioned correctly before you fasten the manifold.
Manifold
o-rings (139) are shown in Fig. 7 and Fig.
8.
with
NOTE: Pumps
duckbill check valves are shipped
with the inlet manifold on top and the outlet manifold on
the bottom. See page 14 for details.
re
Fig. 4
f
1
1
105
1
Fig. 5
105
9071A
308981 9
Operation
Read TOXIC FLUID HAZARD
on page 3.
If lifting the pump, follow the Pressure
Relief Procedure above.
Be sure the pump is properly
grounded. Read FIRE AND
EXPLOSION HAZARD on
page 3.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
ally relieved. To reduce the risk of serious
manu
injury from pressurized fluid, accidental spray, or
splashing fluid, follow this procedure whenever you
• Are instructed to relieve pressure
• Stop pumping
• Check, clean, or service any system equipment
• Install or clean fluid nozzles
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve all fluid pressure, and have a container ready to catch the drainage.
Flush Pump Before First Use
The pump was tested with water. Prior to first use, flush the
pump thoroughly with a compatible solvent.
Reactor feed pumps, part numbers 246484, 246485,
a
left in the fluid passages. To avoid contaminating your
fluid with oil, flush the pump with a compatible solvent
before using the equipment. Follow the steps under
Starting and Adjusting Pump.
7447, were tested with lightweight oil, which is
nd 25
NOTE: If the inlet fluid pressure to the pump is more
than 25% of the outlet working pressure, the ball check
valves will not close fast enough, resulting in inefficient
pump operation.
6. Place the end of the fluid hose (K) into an appropriate
t
ainer.
con
7. Close the fluid drain valve (H).
8. With the pump air regulator (G) closed, open all
bleed-type master air valves (B, E).
9. If the fluid hose has a dispensing device, hold it
open while continuing with the following step. Slowly
open the air regulator (G) until the pump starts to
cycle. Allow the pump to cycle slowly until all air is
pushed out of the lines and the pump is primed.
th
If you are flushing, run
thoroughly clean the pump and hoses. Close the a ir
regulator. Remove the suction tube from the solven t
and place it in the fluid to be pumped.
e pump long enough to
Operation of Remote Piloted Pumps
1. Fig. 2 and Parts Drawings. Follow preceding steps
1 through 8 of Starting and Adjusting Pump.
2. Open air regulator (G).
WARNING
Starting and Adjusting Pump
1.
2.
3.
e
4. Check all fittings to be sur
compatible liquid thread sealant on all male threads.
Tighten the fluid inlet and outlet fittings snugly. Do
not overtighten the fittings into the pump.
5. Place the suction tube (if used) in the fluid to be
pumped.
10 308981
they are tight. Use a
The pump may cycle once before the external signal is
applied. Injury is possible. If pump cycles, wait until end
before proceeding.
3. Pump will operate when air pressure is alternately
applied to push type connectors (16).
NOTE: Leaving air pressure applied to the air motor for
extended pe
shorten the diaphragm life. Using a 3-way solenoid valve
to automatically relieve the pressure on the air motor
when the metering cycle is complete prevents this from
occurring.
riods when the pump is not running may
Pump Shutdown
At the end of the work shift, relieve the pres-
sure as described in Pressure Relief Proce-
re at left.
du
Maintenance
Lubrication
The air valve is lubricated at the factory to operate without additional lubrication. If you want to provide additional lubrication, remove the hose from the pump air
and add two drops of machine oil to the air inlet
inlet
every 500 hours of operation or every month.
CAUTION
Do not over-lubricate the pump. Oil is exhausted
through the muffler, which could contaminate your fluid
supply or other equipment. Excessive lubrication can
also cause the pump to malfunction.
Flushing and Storage
Flush the pump to prevent the fluid you are pumping
from drying or freezing in the pump and damaging it.
Use a compatible solvent.
elie
Always flush the pump and r
you store it for any length of time.
ve the pressure before
Tightening Threaded Connections
Before each use, check all hoses for wear or damage
and replace as necessary. Check to be sure all threaded
connections are tight and leak-free.
Check fasteners. Tighten or retorque as necessary.
gh
Althou
retorque fasteners every two months. See Torque
Sequence, page 29.
pump use varies, a general guideline is to
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on
the pump’s service history. This is especially important
for prevention of spills or leakage due to diaphragm failure.
Read Pressure Relief Procedure on page
10.
308981 11
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