Graco Husky 1590 Datasheet

Instructions – Parts List
POLYPROPYLENE AND PVDF
Huskyt1590 Air-Operated
Diaphragm Pumps
1.5–inch AODD pump for fluid transfer applications. For professional
use only.
Not approved to European explosive atmosphere requirements.
See Models on page 2 for a list of pump models and descriptions.
120 psi (0.84 MPa, 8.4 bar) Maximum Fluid Working Pressure
120 psi (0.84 MPa, 8.4 bar) Maximum Air Input Pressure
308549ZAC
EN
Important Safety Instructions
Read all warnings and instructions in
this manual. Save these instructions.
04700B

2 308549
Table of Contents
Models 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
Repairing the Air Valve 16. . . . . . . . . . . . . . . . . . . . . .
Ball Check Valve Repair 18. . . . . . . . . . . . . . . . . . . . .
Diaphragm Repair 19. . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing and Air Gasket Removal 23. . . . . . . . . . . . .
Pump Matrix 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Kit Matrix 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Sequence 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data and Performance Chart 35. . . . . . . . . . .
Graco Standard Warranty 36. . . . . . . . . . . . . . . . . . . . . .
Graco Information 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Models
Model No. Description
*DB2______ Polypropylene Pumps
*DC2______ Polypropylene Pumps, Remote
*DB5______ PVDF Pumps
*DC5______ PVDF Pumps, Remote
*DT2______ Polypropylene Plus Pumps
*DU2______ Polypropylene Plus Pumps, Remote
*DT5______ PVDF Plus Pumps
*DU5______ PVDF Plus Pumps, Remote
24B758 PVDF Plus Pump with overmolded diaphragms
24B759 Polypropylene Plus Pump with overmolded diaphragms
24B760 Polypropylene Pump with overmolded diaphragms
24B761 Polypropylene Pump with overmolded diaphragms and sst seats
24B832 PVDF Pump with overmolded diaphragms
*See the Pump Matrix on page 26 to determine the Model No. of your pump.
NOTE: Plus Models include stainless steel center sections.

308549 3
Symbols
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.
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are not sure, call Graco your Graco
distributor.
DDo not alter or modify this equipment.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated component in your system.
This equipment has a 120 psi (0.84 MPa, 8.4 bar) maximum working pressure at 120 psi
(0.84 MPa, 8.4 bar) maximum incoming air pressure.
DUse fluids and solvents which 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.
DDo not use hoses to pull equipment.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not ex-
pose Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DDo not lift pressurized equipment.
DWear hearing protection when operating this equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.
INSTRUCTIONS
WARNING

4 308549
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.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid
and solvent manufacturer.
DPipe 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. See Air Exhaust Ventilation on
page 11.
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.
DGround the equipment. Refer to Grounding on page 6.
DNever use a polypropylene or PVDFRpump with non-conductive flammable fluids as specified
by your local fire protection code. Refer to Grounding on page 6 for additional information.
Consult your fluid supplier to determine the conductivity or resistivity of your fluid.
DIf 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.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed, dispensed, or transferred.
DPipe and dispose of the exhaust air safely, away from all sources of ignition. If the diaphragm
fails, the fluid is exhausted along with the air. See Air Exhaust Ventilation on page 11.
DKeep the work area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the work area.
DExtinguish all open flames or pilot lights in the work area.
DDo not smoke in the work area.
DDo not turn on or off any light switch in the work area while operating or if fumes are present.
DDo not operate a gasoline engine in the work area.
WARNING

308549 5
Installation
General Information
DThe Typical Installation shown in Fig. 2 is only a
guide for selecting and installing system compo-
nents. Contact your Graco distributor or Graco
Technical Assistance (see back page) for assis-
tance in planning a system to suit your needs.
DAlways use Genuine Graco Parts and Accessories.
Be sure all accessories are adequately sized and
pressure-rated to meet the system’s requirements.
DReference numbers and letters in parentheses refer
to the callouts in the figures and the parts lists on
pages 30 to 31.
DVariations in color between the plastic components
of this pump are normal. Color variation does not
affect the performance of the pump.
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.
1. Read TOXIC FLUID HAZARD on page 4.
2. Use fluids and solvents which are compatible
with the equipment wetted parts. Refer to the
Technical Data section of all equipment manu-
als. Read the fluid and solvent manufacturer’s
warnings.
WARNING
Tighten Screws Before First Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Se-
quence, page 32. After the first day of operation,
retorque the fasteners. Although pump use varies, a
general guideline is to retorque fasteners every two
months.

6 308549
Installation
Grounding
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before
operating the pump, ground the system
as explained below. Also, read the sec-
tion FIRE AND EXPLOSION HAZARD,
on page 4.
Polypropylene and PVDF are not conductive.
Attaching the ground wire to the grounding lug
grounds only the air motor. When pumping conduc-
tive flammable fluids, always ground the entire
fluid system by making sure the fluid has an electri-
cal path to a true earth ground. See Fig. 1.
Never use a polypropylene or a PVDF pump with
non-conductive flammable fluids as specified by
your local fire protection code.
US Code (NFPA 77 Static Electricity) recommends
a conductivity greater than 50 x 10–12 Siemans/me-
ter (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 1012 ohm-centimeters.
WARNING
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 area and type of equip-
ment.
Ground all of this equipment:
DPump: Connect a ground wire and clamp as shown
in Fig. 1. Loosen the grounding screw (W). Insert
one end of a 12 ga (1.5 mm@) 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. 237569 Ground Wire and Clamp.
NOTE: When pumping conductive flammable fluids
with a polypropylene or a PVDF pump, always ground
the entire fluid system. See the WARNING on
page 6.
DAir and fluid hoses: Use only electrically conductive
hoses.
DAir compressor: Follow the manufacturer’s recom-
mendations.
DAll solvent pails used when flushing: Follow your
local code. Use only metal pails, which are conduc-
tive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which inter-
rupts the grounding continuity.
DFluid supply container: Follow your local code.
Fig. 1
Y
W
02646
B

308549 7
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. 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. See Fig. 2.
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 acces-
sories is electrically conductive.
a. Install an air regulator (C) and gauge to control
the fluid pressure. The fluid outlet pressure will
be the same as the setting of the air regulator.
b. Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. See the WARNING at left. 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
(A) between the accessories and the 1/2 npt(f)
pump air inlet (N). See Fig. 2. Use a minimum 1/2”
(13 mm) ID air hose.
3. Screw an air line quick disconnect coupler (D) onto
the end of the air hose (A); be sure the coupler
porting is large enough to not restrict the air flow,
which will affect pump performance. Screw the
mating fitting into the pump air inlet snugly. Do not
connect the coupler (D) to the fitting until you are
ready to operate the pump.
04701B
KEY FOR FIG. 2
A Electrically conductive air supply hose
B Bleed-type master air valve
(required for pump)
C Air regulator
D Air line quick disconnect
E Master air valve (for accessories)
F Air line filter
G Fluid suction hose
H Fluid supply
J Fluid drain valve (required)
K Fluid shutoff valve
L Fluid hose
N 1/2 npt(f) air inlet port
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
Y Ground wire (required; see page 6
for installation instructions)
Fig. 2
Floor Mount Typical Installation
Y J
F
BE
C
A
DKL
G
H
R
S
N

8 308549
Installation
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 connec-
tors (14) on air motor of pump.
NOTE: by replacing the push type connectors, other
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 Graco’s Cycleflo (P/N 195264) or
Cycleflo II (P/N195265) controllers.
NOTE: the air pressure at the connectors must be at
least 30% of the air pressure to the air motor for the
pump to operate.
Mountings
CAUTION
The pump exhaust air may contain contaminants.
Ventilate to a remote area if the contaminants
could affect your fluid supply. See Air Exhaust
Ventilation on page 11.
1. Be sure the mounting surface can support the
weight of the pump, hoses, and accessories, as
well as the stress caused during operation.
2. For all mountings, be sure the pump is bolted
directly to the mounting surface.
3. For ease of operation and service, mount the
pump so the air valve cover (2), air inlet, and fluid
inlet and outlet ports are easily accessible.
4. Rubber Foot Mounting Kit 236452 is available to
reduce noise and vibration during operation.
Fluid Suction Line
1. The pump fluid inlet (R) is a 1–1/2 in. raised face
flange. Refer to Flange Connections on page 9.
2. If the fluid inlet 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.
3. At inlet fluid pressures greater than 15 psi
(0.1 MPa, 1 bar), diaphragm life will be shortened.
4. See the Technical Data on page 35 for maximum
suction lift (wet and dry).
Fluid Outlet Line
WARNING
A fluid drain valve (J) is required to relieve pres-
sure in the hose if it is plugged. The drain valve
reduces the risk of serious injury, including splash-
ing in the eyes or on the skin, or contamination
from hazardous fluids when relieving pressure.
Install the valve close to the pump fluid outlet. See
Fig. 2.
1. The pump fluid outlet (S) is a 1–1/2 in. raised face
flange. Refer to Flange Connections on page 9.
2. Install a fluid drain valve (J) near the fluid outlet.
See the WARNING above.
3. Install a shutoff valve (K) in the fluid outlet line.

308549 9
Installation
Flange Connections
The fluid inlet and outlet ports are 1–1/2 in. raised
face, standard 150 lb class pipe flanges. Connect
1–1/2 in. flanged plastic pipe to the pump as follows.
You will need:
DTorque wrench
DAdjustable wrench
Da 5 in. diameter, 1/8 in. thick PTFE gasket, with
four 0.63 in. diameter holes on a 3.88 in. diameter
bolt circle, and a 1.75 in. diameter center
Dfour 1/2 in. x 3 in. bolts
Dfour 1/2 in. spring lockwashers
Deight 1/2 in. flat washers
Dfour 1/2 in. nuts.
1. Place a flat washer (E) on each bolt (C). Refer to
Fig. 3.
2. Align the holes in the gasket (B) and the pipe
flange (A) with the holes in the pump outlet flange
(S).
3. Lubricate the threads of the four bolts. Install the
bolts through the holes and secure with the wash-
ers (E), lockwashers (D), and nuts (F).
4. Hold the nuts with a wrench. Refer to the tighten-
ing sequence in Fig. 3 and torque the bolts to 10 to
15 ft-lb (14 to 20 NSm). Do not over-torque.
5. Repeat for the pump inlet flange (R).
04703B
04405
Fig. 3
1
F
ES
B
A
E
D
C
R
BOLT TIGHTENING SEQUENCE
1Lubricate threads. Torque to 10 to 15 ft-lb
(14–20 N-m). Do not over-torque.
1
2
3
4
KEY FOR FIG. 3
A Flanged plastic pipe
B PTFE gasket
C Bolt
D Lockwasher
E Flat washer
FNut
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
1

10 308549
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
The pump is shipped with the fluid inlet (R) and outlet
(S) ports facing the same direction. See Fig. 4. To
change the orientation of the inlet and/or outlet port:
1. Remove the screws (106 and 112) holding the inlet
(102) and/or outlet (103) manifold to the covers
(101).
2. Reverse the manifold and reattach. Install the
screws and torque to 80 to 90 in-lb (9 to 10 NSm).
See Torque Sequence, page 32.
04700B
Fig. 4
1Torque to 80 to 90 in-lb (9 to 10 NSm).
See Torque Sequence, page 32.
KEY
N 1/2 npt(f) Air Inlet Port
P Muffler; Air Exhaust Port
is 3/4 npt(f)
R 1–1/2” Fluid Inlet Flange
S 1–1/2” Fluid Outlet Flange
101 Fluid Covers
102 Fluid Inlet Manifold
103 Fluid Outlet Manifold
106 Fluid Outlet Manifold
Screws (Top)
112 Fluid Inlet Manifold
Screws (Bottom)
N
P
R
S
1
103
102
101
1
106
112
Fluid Pressure Relief Valve
Some systems may require installation of a pres-
sure relief valve at the pump outlet to prevent
overpressurization and rupture of the pump or
hose. See Fig. 5.
Thermal expansion of fluid in the outlet line can
cause overpressurization. This can occur when
using long fluid lines exposed to sunlight or ambi-
ent heat, or when pumping from a cool to a warm
area (for example, from an underground tank).
Overpressurization can also occur if the Husky
pump 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.
CAUTION
Fig. 5
1
2Connect fluid inlet line here.
KEY
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
V Pressure relief valve
Part No. 112119 (stainless steel)
R
S
Connect fluid outlet line here.
1
2
3
Install valve between fluid inlet and outlet ports.
V
3
04702B