Graco 310541c Automatic Dispense Valve Owner's Manual

INSTRUCTIONS-PARTS LIST
INSTRUCTlONS
This manual containsimportant,
warnings and information.
READ AND KEEP FOR REFERENCE.
0-0
Rev. C
I
Automatic Dispense Valve
with Snuff Back
Part Number 918-512 Series A
Air-operated dispense valve for extrudingand streaming ambient materials.
204 bar (3000 psi) (20 MPa) MaximumFluid Working Pressure
IO bar (150 psi) (1.0 MPa) Maximum Air Working Pressure
Table ofContents
Warnings.. ....................................
Installation ....................................
Troubleshooting ................................
Service .......................................
Parts ........................................
Accessories .................................
Dimensions.. .................................
Technical Data ................................
Graco Warranty ...............................
Graco Phone Number.. ........................
2
5
7
8
12
;.13
14
14
16
16
GRACO INC. 47700 HALYARD DRIVE PLYMOUTH
@COPYRIGHT1997, GRACO INC.
Graco Inc.is registered to I.S. EN IS0 9001
MI
48170-2412
Warnings
Warning Symbol
Caution Symbol
This symbol alerts you
to the possibility of serious
injury or deathif you do not followthe instructions.
This symbol alerts you
to the possibility of damage
to
or destruction of equipment
if you do not followthe
instructions.
EQUIPMENT MISUSE HAZARD
NSTRUCTION
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and
result in serious injury.
This equipment is for professional use only.
Read all instruction
manuals, warnings, tags. andlabels before operatingthe equipment.
Use the equipment only for
its intended purpose. If you are uncertain about usage, call Graco
Technical Assistance at 313-416-3425.
D
Do not alter or modify this equipment.
Use only genuine Graco parts and accessories.
Check the equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum air working pr&sure of 1 MPa (10150
bar,
psi) to the applicator.
B
B
b
1
1
1
1
2
310541
Do not exceed the maximum fluid working pressure of 10.3 MPa (103
1500
bar,psi) to the
applicator.
Never exceed the recommended working pressure or the maximum air inlet pressure stated on
page 14.
your pump orin the Technical Data on
Be sure that all sprayldispensing equipment and accessories are rated
to withstand the maximum working pressure the
of pump. Do not exceed the maximum working pressure of any
component or accessory used
in the system.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces.
Do not
expose Graco hosesto temperatures above.180"F (82°C) or below-OF (40°C).
Do not use thehoses to pull the equipment.
Use only fluids and solvents that are compatible with the equipment wetted
See
parts.
the
Technical Datasections ofall the equipment manuals. Read the fluid manufacturer's warnings.
Always wear protective eyewear, gloves, clothing, and respirator as recommendedthe
by fluid
and solvent manufacturers.
1
Wear hearing protection when operating this equipment.
1
Comply with all applicable local, state and national fire, electrical and other safety regulations.
INJECTION HAZARD
Spray from the applicator, hose leaks, or ruptured components can fluid
inject into your body and
cause extremely serious injury, including the need for amputation.
Fluid splashedin the eyes or on
the skin can also cause serious injury.
0
fluid injected into the skin might look like just a cut,
it isbut
a serious injury. Get
immediate
medical attention.
0
Do not point the applicator at anyoneator
any part of the body.
0
Do not put hand or fingers over the front of the applicator.
0
Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
Follow the Pressure Relief Procedure on page 8 whenever you areinstructedto: relieve
pressure: stop dispensing: clean. check, or Service the equipment; or install or aclean
spray tip
or nozzle.
Tighten all the fluid connections before operating the equipment.
0
0
0
0
Check the hoses, tubes. and couplings daily. Replace worn, damaged, or looSe parts immediately. Permanently coupled hoses cannot be repaired: replace the entire hose.
ALWAYS wear eye protection and protective clothing when installing, operating,.or servicing this
dispensing equipment.
Do not remove or modify anypart of the applicator; this can cause
a malfunctionand result in
serious bodily injury.
Use extreme caution when cleaning or changing spray tips.
If the spray tip clogs while spraying, ALWAYS tollow the Pressure Relief Procedure on page8, then remove the Spray tip to
clean it.
NEVER wipe off build-up around the spray tip or air cap until pressure is fully relieved.
310641
3
FIRE, EXPLOSION, ANDELECTROSTATIC SHOCK HAZARD
improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition
and result in fire or explosion and serious injury.
Ground the equipment and the object being sprayed.
See Grounding on page 6.
Ground the equipment and the object being sprayed, ail
and
other electrically conductive
objects in the dispense area. Proper grounding dissipates static electricity generated
in the
equipment. See Grounding on page 6.
Do not use this equipment with flammable liquids.
Keep the dispense area free of debris, including solvent, rags, and gasoline.
0
If there is any static sparking or you feel an electric shock while using the equipment,
stop dispensing immediately. Do not use the equipment until you have identified and corrected
the
problem.
Make sureall electrical work is performed by a qualified electrician only.
B
B
Have any checks, installation. or service
to electrical equipment performed by a qualified electrician only.
Make sure all electrical equipment is installed and operated in compliance with applicable
codes.
Make sure power is disconnected when servicing and repairing equipment.
D
Before operating the equipment, extinguish all open flames or pilot lights
the dispense
in
area.
B
Do not smokein the dispensing area.
P
Keep liquids away from the electrical components
1
Disconnect electrical power at
the main switch before servicing the equipment.
1
Extinguish all open flames or pilot lights in the dispense area.
1
Do not turn on or
off anv light switch in
the dispense area.
roxlc FLUID HAZARD
lazardous fluidsor toxic fumes can cause serious injury or death
if splashed in the eyes or on the
;kin, swallowed, or inhaled.
1
1
1
1
1
Provide fresh air ventilation
to avoid the buildup of vapors from the fluid being dispensed.
Store hazardousfluid in an approved
container. Dispose of hazardous fluid according
to all
local, state and national guidelines.
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.
Provide adequate ventilation.
4
310-541
Installation
To install the automatic dispense valve:
0
Attaching Seat Retaineror Dispense Tip
You have the choice of attaching an extrusionn o d e
to the nozzle adapter provided,or streaming tip using
the optional streaming tip adapter.
mount the dispense valve
attach seat retainer or dispense tip using nozzle
adapter provided
connect the air lines
connect material hose
connect the automatic dispense valve to a ground
wire
Attaching Extrusion Nozzle and Adapter
Attach a dispense tip (D) to the automatic dispense
valve.
NOTE: See Fig. 8 on page12 for part reference numbers.
1. Select anextrusion nozzle (D).
Mounting the Automatic Dispense Valve
You can rotatethe mounting angleof the dispense
valve in90"incrementsto the temperaturecondtioning manifold. The distance between the dispense
valve and the object being applied with material depends on your application. When using an extrusion
nozzle, the tipis generally the same distance from the
part as the bead diameter desired. When using
a
streaming tip, the tip is usually positioned 1from
to 3
inches from the part, and the distance depends on the
material being applied.
Attach the automatic dispense valve to the mounting
bracket on a stationary support or robotic arm (Fig.
.1)
using 2 socket head, 1/4-20 screws (30),2 lock washers (40), and 2 flat washers(50). Mounting holes are
provided on three sides of the air cylinder. andthe air
cylinder position can be rotated with respect
the to
gun
body by removing the four socket head screws
(230).
reorienting the air cylinder, and then replacing the
screws.
2. Install the tip and then use the seat retainer
(C) to
secure the tip to the seat adapter (E).
Fig. 2
Attaching Streaming Tip and Adapter
Attach a seat retainer (C)to the automatic dispense
valve. See pg. 13 for details.
1. Select a streaming tip adapter
(C).
2. Select a streaming tip(F).
mounting
3. Install the adapter(C) and tip (F)on the seat
adapter (E).
Fig. 3
'
I
Fig. 1
310-541
5
Installation
Connect Air Lines to Dispense Valve
Grounding
SeCUrely connectair lines to dispense valve air
Ports (fig. 1, E). Make sure theOPEN and CLOSE air
lines are correctly connected.
mb
$kt
3
Connect Material Hose to Dispense Valve
SecUreiy Connect thematerial hose to
the dispense
valve material inlet port (fig.
1. A).
0
6
310-541
FIRE, EXPLOSION, AND ELECTRIC
SHOCK HAZARD
To reduce the risk of fire, explosion, or
electric shock:
A power source conduit is not
an adequate ground for the
system. The unit
must be bonded to either the building
ground or a true earth ground.
A qualified electrician must complete
all grounding and wiring connections
and check the resistance as instructed
on page4.
Refer to yourlocal code for the requirements for
a "true earth ground"in your area.
Also read and follow the warnings on page
2.
Troubleshooting
See Fig. 8 on page12 for the parts thatneed to be
serviced.
Problem
I
QUse(S)
Air leaks from automatic dis- ILoose air connections
pense valve
Worn o-rings
Worn ring
I
I Solution(s)
I Check air conneciions.
1Replace o-rings(90)and (100).
I
IReplace ring.~
(110).
t
~
Material leaks from front of au- Seal, spaceror retaining ringis worn
Replace rod seal (160), spacer (170).
and retaining ring
tomatic dispense valve
(180).
Obstruction inside dispense valve Remove adapter seat. Check and
replace if necessary, rodseal (160).
(180).
spacer (170), and retaining ring
Needle isworn Replace needle (150) and seal
Material leaksfrom automatic
dispense valve body
I
ISeal
not installed conectiv
Seal is worn
Automatic dispense valve does Loose air connections
not shutoff
Worn needleseal interface
I
ICheck
sary.
(160).
seal. (70)
if neces. and replace
Check air connections.
Check and replace, if necessary,
needle (150). seat rod seal (160).
spacer (170), and retaining ring
(180).
If replacing needle, you must disassemble dispense valve.
Worn spring-piston interface
Disassemble dispense valve, Check
and replace, if necessary needle
Spring broken ornot installed correctly (150).and sorina (60).
..
310-541
7
Service
Pressure Relief Procedure
This procedure describes how
to relieve pressure from
the automatic dispense valve.See your supply unit or
system documentation for instructions on
relieving
pressure for the entire dispensing system.
Use this,
procedure whenever you shut
off the dispense valve
and before checking or adjusting any of
part
the
system, to reduce the riskof serious injury.
INJECTION HAZARD
The system pressure must
be manually
relieved to prevent the system from
starting or spraying accidentally.Fluid
under high pressure can
be injected
through the skin and cause serious
injury. To reducethe risk of an injury
from injection, splashing fluid, or moving
parts, follow thePressure Relief
Procedure whenever you:
are instructedto relieve the pressure
stop spraying/dispensing
install or clean the spray tip/nozzle
check or service any ofthe system
equipment
PRESSURIZED FLUIDHAZARD
High pressurescan cause serious personal injury.
1. Shut off the material supply.
2. Close all air bleed valves for supply unit.
3. Have a container readyto catch the drainage, then
bleed off material pressureby actuating the automatic dispense valve.
4. Shut off air supply to valve.
NOTE: I f you suspect that the spraytiphozle or hose
is complete& clogged,or that pressure has not
been fuNy relieved afterfo//owingthe steps
above, very slowly loosen the tip guard
retaining nut or hose end coupling
to relieve
pressure gradually, then loosen completely.
Then clear thetiplnoule or hose.
Preparing to Service Automatic
Dispense Valve
Perform this procedure before servicing
the automatic
dispense valve.
1. Shut off system air.
2. Relieve the system pressure.
To reduce therisk of serious injury, whenever you.
are instructedto relieve pressure, alwaysfollow the
Pressure Relief Procedure.
Servicing the Automatic Dispense
Valve,
NOTE See Fig. 8 on page 12 for part reference numbers.
Some dispense valve seals and O-rings can rebe
placed while the dispense valve still
is mounted.
However, to replace the needle, you must remove the
automatic dispense valve from the temperature conditioning manifoldmounting bracket and disassemble
it.
To lubricate all seals and O-rings. you
need
PARKER 0 LUBE (or an equivalent lubricant). Check
with the material supplier for a compatible lubricant.
Service
Reconnecting Automatic Dispense
Valve to
Mounting Bracket
Reconnect the automatic dispense valveto its mounting bracket.
Prior to installation, lubricateall seals and O-rings with
PARKER 0 LUBE (or an equivalent lubricant). Check
with the material supplier for
a compatible lubricant.
1 . Reconnect air linesto dispense valve air cunnections (6).
2. Reconnect material hose to dispense valve materi-
al inlet port (A).
Fig.
Disconnecting AutomaticDispense Valve from
Mounting BracKet
Remove the automatic dispense valve from
its mounting bracket. Note that figure4 shows two different
mountings, eitherof which may be used.
1. Perform the procedures in Preparing
to Service
Automatic Dispense Valve on page8.
2. Disconnect air lines from dispense valve air ports
(E).
3. Disconnect material hose from material inlet port
(A).
4.
Remove automatic dispense valve
body from
mounting by removing 1/4-20 mews (30) and
washers ((50) and (40)).
310-541
9
Service
Disassembling Automatic Dispense
Valve
230
6. Using an O-ring
pick remove dispense valve body
seal (70).
7. Disassemble adapter assembly (Fig. 6):
a. Unscrew seat retainer (C).
b. Remove 3 socket head screws (30
in Fig. 5).
200
c. Remove adapter seat (IO).
d. Remove retaining ring (180).
e. Remove seal (160) and spacer (170).
Remove O-ring (20).
f.
Fig. 5
To disassemble the automatic dispense valve:
20
160
C
1. Make sureyou have removed the dispense valve
from its mounting.
2. Remove the4 socket head screws(230) and
separate the cylinder cap (220) from the cylinder
base (200).
3. Pull cap and base from the dispense valve
body (190). The needle and piston remain with the
cap and base.
4. Remove cap from base.
5. Remove needle from cap or base.
10
310-541
Fig. 6
Service
Reassembling Automatic Dispense Valve
This procedure requires PARKER
0 LUBE (or an
equivalent lubricant Check with the material supplier
for acompatible lubricant.)
To reassembleme automatic dispense valve:
1. Reassemble adapter assembly (Fig. 6):
a. Lubricate and replace o-ring (20).
b. Lubricate and replace seal (160) and spacer
(1 70).
c. Replace retaining ring (180).
d. Replace adapter seat(10).
2.
4. Put spacers between dispense valve body (190)
and cylinder base (200).
5. Then securethe cap to the base using 4the
socket head screws (230).
Inspection Frequency
Automatic Dispense Valve
Inspect automatic dispense valve everyweeks
2
for
leakage or other visible damage.
Check specifi&lly for:
0 material leaks
0 air leaks
e. Insert and tighten3 socket head screws(30 in
Fig. 5).
HosewTubes
Inspect hosedtubes every 2 weeks for leakage or
other visible damage.
f.
0
Screw on seat retainer (C).
Lubricate then replace dispense valve body
seal (70). Make sure the seal energizer faces
towards the material pressure.
0
material hose
air hoses
3. Reassemble cap and base:
100
110
Fig. 7
a. Lubricate o-ring and ring.
b. Insetto-ring (100) into needle piston (150)
groove.
c. Slide ring (110) on top of c-ring (100).
d. Lubricate, then replace o-rings (90) and (210).
e. Insert needle assembly into cylinder
cap (220).
f.
Slide base (200) into cylinder cap
(220).
31-41
11
Model 918-512, Automatic Dispense Valvewith Snuff Back
Ret
No.
10
20
30
40
50
60
70
Part No. Description
atv
617479
C20173
c 19800
C 19209
C19198
617536
C32075
1
C34030
80
90
100
110
120
C20124
c20122
C32088
617495
Adapter, seat
O-ring, -018 VitonB 1
Screw, sOC. hd. Cap. 114"-20 X 0.5
Washer. lock, 114"
Washer, flat, 1/4"
Spring, snuff-back gun 4
Seal
Spacer 4
O-ring, -125 Viton 1
O-ring, -123 Viton 1
Ring
Screw, button head, 114'"20x
0.31
5
2
4
1
1
1
Ref
NO.
130
140
150
160
1 70
180
190
200
210
220
230
Part NO. Description
atv
C20521
C32089
918471
617491
Seal. thread
Retainer, seat. 1/8" NPT(1)
Needle, piston
Seal, rod hi temp, 0.25 x 0.50 x
1
1
1
1
Spacer
Ring, retaining, for 0.56 i.d.
gun
Base, cylinder
O-ring, -010 Viton
Cap, cylinder
Screw, SOC. hd. cap, 114"-20 x
3.25
1
1
617480
C20406
617556
617537
c20080
C34028
C19805
0.25
A
Material Inlet
Port 112 NPT
150'
Fig. 8
12
310-541
\
140
Material Outlet Port
inNWfemale
1
1
1
1
4
Accessories
Use Only GenuineGraco Parts and Accessories
Description
Part No.
HOSE
For use with any ambient hoses.
EXTRUSION NOZZLE
ADAPTER
Adapts 1W-27 NPT for automatic dispense valve. Accepts
the adapters and nozzleslisted
below. Included wilh dispense valve.
Description
-Adapter
Nozzles
Length
6 4 16"
5-1 4"
2-711 6"
1-7/32"
Orifice
7/64
mread
118" NPT
0 1/8"
0 21/64"
0 332-x 38"
0 118"
-
STREAMING TIP ADAPTER
0 0.469 opening adapter for automatic dispense valve.
Works with series182 streaming
C32089
Part No.
C17007
coo068
COO073
C01025
C 1 7009
617-585
tips. Contact your Graco Serviceflepresentativefor more information.
AIR FllTING
Suggested air fitting
for automatic dispense valve air inlet
ports. Contact your Graco Service
Representative for more information.
Description
90' elbow, brass push-in tube
INPT
I 118- male
I Tube
1114" O.D.
IPart NO.
IC19389
I
310-541
13
Fig. 9
Technical Data
3000 PSI (204 Bar) (20 MPa)
Maximum fluid working pressure
150 PSI (10 Ear) (1.0 MPa)
Maximum working air pressure
1/2" NPT(f)
Material Inlet
1/8" NPT(f)
Material Outlet
118" NPT(9
Air Inlet
..
Weight
approx. 1.8 kg (4 Ibs)
Stainless steel, aluminum, UHMWPE. Viton,
brass, Hytrel
Wetted parts
Related Publications
Form#
Product
Temperature Conditioned Automatic Dispense Valve
Heated Automatic Dispense Valve
Viton.
is a registered trademarkof the
PrecisionFlomis a trademark of Graco. Inc.
14
310-541
Company,
31C-538
31 0-539
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"..........I............."............_.....-.......~.."...........-....-........-..-...........".."..1....^._....".I_.
..
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."
I
Grace Warranty and Limitationof Liability
WARRANTY
Graco warrantsall equipment listed in this manual which is manufactured
by Graco and bearing its name to be free from defects
on the dateof sale by an authorized Graco distributor to the
original purchaser for use. Graco
will,
in material and workmanship
for a periodof twelve months from the date
of sale. repair or replace any part the
of equipment determinedby Graco to be defective. This warranty appliesonly when the equipmentis installed. operated and maintainedin accordance with Graco'swriien recommendations.
This warranty does not cover.
and Graco shall not be liable
for general wearand tear, or any malfunction, damageor wear
caused byfaulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident,
tampering, or substitution of non-Graco component parts. Nor shall Graco
be liable for maffunction. damageor wear caused by
not supplied by Graco.or the imthe incompatibilityof Graco equipmentwith structures, accessories, equipment or materials
proper design, manufacture, installation, operation or maintenance of structures, accessories. equipment or materials
sup
not
plied by Graco.
This warranty is conditioned upon the prepaid return
of the equipment claimed to
be defective to'an authorized Graco distributor
for verification of the claimed defect.If the claimed defectis verified, Gracowill repairor replace free of charge any defective
If inspection of the equipment does not
parts. The equipment will be returned the
to original purchaser transportation prepaid.
disclose anydefect in material or workmanship. repairs will be made at a reasonable charge, which charges may include the
costs of parts, labcr,and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTYOF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco's sole obligation andbuyer's sole remedy'for
any breachof warranty shall be as set forth above. The buyer agrees that
no
other remedy (including, but not
limited to, incidental or consequential damages
for lost profiis.lost sales, injury to person or property, or any other incidental or consequential
loss) shall be available. Anyaction for breach of warranty must
be brought within
two (2) years of thedate of sale.
GRACO MAKESNO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSEIN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS,
OR COMPONENTS
SOLD BUT NOT MANUFACTURED BY GRACO.These items sold. but not manufactured
by Graco (suchas electric motors,
switches, hose, etc.) are subjectto the warranty,if any. of their manufacturer. Gracowill provide purchaser with reasonable assistance in making any claim for breach
of these warranties.
For Sales to Canadian Customers:
Except as expressly stated herein, Graco makers
no representations, warranties or conditions,express, implied or collateral, conGRACO SHALL NOTBE LIABLE IN ANY MANNER FOR any other representation,
cerning any goods or services sold. and
warranty or condition of any kind, whether
arising by operation of law or otherwise, including but
not limited to, WARRANTIES OF
MERCHANTABLE QUALITYOR FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY
In no event will Graco
be liable for indirect. incidental, special or consequential damages resulting from Graco supplying
equip
ment hereunder, orfor the furnishing, performance, or use of any products or other goods
soid hereto, whether dueto a breach of
contract breach of warranty, the negligenceof Graco. or otherwise.
Graco.PhoneNumber
TO PLACEAN ORDER,contact yourGraco distributor, cal 800-367-4023 Toll Free, or FAX:
612623-6580
FOR TECHNICAL ASSISTANCE,service repair
of
information or assistance regarding the application
this equipment, call Graco in Plymouth, Michigan:
313-416-3425
A
llinformation, iNustrationsand specifications in this document arebased on the latest product information available
at the time
of publication. The right is reservedto make changesat any time without notice.
Sales Offices Worldwide
GRACO INC. 47700 HALYARD DRIVE PLYMOUTH MI 48170-2412
16
310-541
PRINTED IN U S A . 310541 January 1997
PRINTED IN U S A . 310-539 January 1997

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