Graco 310538P - Therm-O-Flow Automatic Dispense Valves Instructions

Instructions-Parts List
Therm-O-Flow®
Automatic Dispense Valves
310538P
EN
Air-operated dispense valves. For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Model 918483 Shown
Table of Contents
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2
List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mount the Automatic Dispense Valve . . . . . . . . . 6
Attach the Dispense Tip, Nozzle, or Swirl . . . . . . 6
Connect the Air Lines to the Dispense Valve . . . 8
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pressure Relief Procedure . . . . . . . . . . . . . . . . 11
Prepare to Service the Automatic Dispense Valve
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Service the Automatic Dispense Valve . . . . . . . 13
Disconnect the Automatic Dispense Valve from the
Mounting Bracket . . . . . . . . . . . . . . . . . . . . 13
Reconnect the Automatic Dispense Valve to the
Mounting Bracket . . . . . . . . . . . . . . . . . . . . 13
Disassemble the Automatic Dispense Valve . . 14
Reassemble the Automatic Dispense Valve . . . 15
Replace the Heater Unit or Sensor . . . . . . . . . . 16
Inspection Frequency . . . . . . . . . . . . . . . . . . . . 18
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Model 194485, Warm (275°F/135°C max)
Automatic Dispense Valve with Snuff Back 19
Model 918483, Therm-O-Flow Automatic Dispense
Valve with Snuff Back . . . . . . . . . . . . . . . . . 21
Model 918512, Ambient Therm-O-Flow Automatic
Dispense Valve with Snuff Back . . . . . . . . . 23
Model 918639, Therm-O-Flow Automatic Dispense
Valve with Snuff Back . . . . . . . . . . . . . . . . . 25
Model 243694, Therm-O-Flow Automatic Dispense
Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Model 297266, Automatic Hot Melt Swirl Dispense
Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Model 243695, Therm-O-Flow Automatic Dispense
Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Model 243696, Therm-O-Flow Automatic Dispense
Valve with Snuff Back . . . . . . . . . . . . . . . . . 33
Model C27340, Ambient Therm-O-Flow Automatic
Dispense Valve, Double Acting . . . . . . . . . . 35
Model C34068, Warm Automatic Dispense Valve,
Double Acting . . . . . . . . . . . . . . . . . . . . . . . 37
Model C34079, Therm-O-Flow Automatic Dispense
Valve, Double Acting . . . . . . . . . . . . . . . . . . 39
Model C50592, Therm-O-Flow Automatic Dispense
Valve, Double Acting . . . . . . . . . . . . . . . . . . 41
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 48
List of Models
Valve
Type
Part
No.
Voltage /
Maximum Fluid Working
No. of Pins Pressure
Maximum Air Input
Pressure
Parts
Page
TOF
194485 Snuff Back
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
20
TOF
918483 Snuff Back
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
22
918512 Snuff Back
Ambient
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
24
TOF
918639 Snuff Back
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
26
TOF+
243694 Base Seal
240 V / 8
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
28
TOF 200
297266 Snuff Back Swirl
240 V / 8
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
30
TOF+
243695 Base Seal H. F.
240 V / 8
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
31
TOF+
243696 Snuff Back
240 V / 8
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
33
TOF
C27340 Base Seal
Ambient
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
35
TOF
C34068 Base Seal
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
37
TOF
C34079 Base Seal
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
39
TOF
C50592 Base Seal
120 V / 6
241 bar, 24 MPa (3500 psi)
10 bar, 1 MPa (150 psi)
41
2
Type
310538P
Warnings
Warnings
The following Warnings are for the safe setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure–specific risks.
Refer back to these Warnings. Additional product–specific warnings may be found throughout the body of this
manual where applicable.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and
result in serious injury.
INSTRUCTIONS
310538P
•
This equipment is for professional use only.
•
Read all instruction manuals, warnings, tags, and labels before operating the equipment.
•
Use the equipment only for its intended purpose. If you are uncertain, call your Graco distributor.
•
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 pressure of 1 MPa (10 bar, 150 psi) to the applicator.
•
Do not exceed the maximum fluid working pressure of 24 MPa (241 bar, 3500 psi) to the applicator or
manifold.
•
Never exceed the recommended working pressure or the maximum air inlet pressure stated on your
pump or in the Technical Data on page 47.
•
Be sure that all spray/dispensing equipment and accessories are rated to withstand the maximum
working pressure of the 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 standard hoses to temperatures above 180F (82C) or below –40F (–40C). Do
not expose Graco electrically heated hoses to temperatures above 400F (222C) or below –40F
(–40C).
•
Do not expose Graco standard hoses to temperatures above 180F (82C) or below –40F (–40C).
•
Do not use the hoses to pull the equipment.
•
Use only fluids and solvents that are compatible with the equipment wetted parts. See the Technical
Data sections of all the equipment manuals. Read the fluid manufacturer’s warnings.
•
Always wear protective eyewear, gloves, clothing, and respirator as recommended by the fluid and
solvent manufacturers.
•
Wear hearing protection when operating this equipment.
•
Comply with all applicable local, state and national fire, electrical and other safety regulations.
3
Warnings
WARNING
HOT SURFACE AND FLUID HAZARD
Heated fluid can cause severe burns and can cause equipment surfaces to become very hot.
•
Wear protective gloves and clothing when operating this equipment in a heated system.
•
Do not touch the metal heat sink when the surface is hot.
•
Allow the equipment to cool thoroughly before servicing.
Some heated systems are designed to dispense Polyurethane (PUR) heated materials. PUR
systems are supplied with ventilation hoods, and require proper ventilation and specially designed
system components.
SKIN INJECTION HAZARD
Spray from the applicator, hose leaks, or ruptured components can inject fluid into your body and
cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on
the skin can also cause serious injury.
4
•
Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgical treatment.
•
Do not point the applicator at anyone or at any part of the body.
•
Do not put hand or fingers over the front of the applicator.
•
Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
•
Follow the Pressure Relief Procedure on page 11 whenever you are instructed to: relieve pressure;
stop dispensing; clean, check, or service the equipment; or install or clean a tip or nozzle.
•
Tighten all the fluid connections before operating the equipment.
•
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 any part of the applicator; this can cause a malfunction and result in serious
bodily injury.
•
Use extreme caution when cleaning or changing tips. If the tip clogs while applying material,
ALWAYS follow the Pressure Relief Procedure on page 11, then remove the tip to clean it.
•
NEVER wipe off build-up around the tip or air cap until pressure is fully relieved.
310538P
Warnings
WARNING
FIRE, EXPLOSION, AND ELECTRIC 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. The Automatic Dispense Valve is grounded
through proper connection of pin E inside the electrical control panel to truth earth ground inside the
electrical control panel. See Grounding on page 9.
•
Ground the equipment and the object being sprayed, and all other electrically conductive objects in
the dispense area. Proper grounding dissipates static electricity generated in the equipment. See
Grounding on page 9.
•
Do not use this equipment with flammable liquids.
•
Keep the dispense area free of debris, including solvent, rags, and gasoline.
•
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 sure all electrical work is performed by a qualified electrician only.
•
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.
•
Before operating the equipment, extinguish all open flames or pilot lights in the dispense area.
•
Do not smoke in the dispensing area.
•
Keep liquids away from the electrical components.
•
Disconnect electrical power at the main switch before servicing the equipment.
•
Never exceed maximum wattage of the supply unit.
TOXIC FLUID HAZARD
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the
skin, swallowed, or inhaled.
310538P
•
Provide fresh air ventilation to avoid the buildup of vapors from the fluid being dispensed.
•
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.
•
Avoid exposure to heated material fumes.
5
Installation
Installation
Install the automatic applicator as follows:
•
mount the automatic dispense valve
•
attach dispense tip, nozzle, or swirl
•
connect the air lines
•
connect material hose
•
connect the electrical cable
•
make sure the automatic dispense valve is
grounded
Mount the Automatic Dispense
Valve
Attach the Dispense Tip, Nozzle,
or Swirl
Attach a dispense tip and a nozzle adapter, or a nozzle
adapter alone, to the automatic dispense valve.
Dispense Tip and Nozzle Adapter
Attachment
Attach dispense tip (B) to the automatic dispense
valve.
1. Select a nozzle adapter (C) and a dispensing tip (B).
2. Install the tip and then use the nozzle adapter (C) to
secure the tip to the seat adapter (D).
Mount the automatic dispense valve to the mounting
bracket on a stationary support or robotic arm (FIG. 1),
using two socket head screws (300) and two flat
washers (50). Be sure to position the insulation
block (280) and insulation tape (290) between the
dispense valve and the mounting bracket.
FIG. 2
FIG. 1
6
310538P
Installation
Nozzle Attachment
Swirl Nozzle Attachment
Attach a nozzle (C) to the automatic dispense valve.
1. Install swirl adapter (C) on seat adapter (D).
1. Select a nozzle.
2. Install swirl applicator head (E).
2. Install nozzle adapter (C) on the seat adapter (D).
3. Install swirl nozzle (F).
3. Install nozzle in nozzle adapter (E).
FIG. 3
FIG. 4
310538P
7
Installation
Connect the Air Lines to the
Dispense Valve
Connect the Material Hose to the Dispense
Valve
Securely connect the material hose to the dispense
CAUTION
Only use air fittings that are rated at a temperature
equal to or higher than the operating temperature of
your fluid dispensing system. Lower rated air fittings
could melt and cause damage to the automatic
dispense valve.
valve material inlet port (A). See FIG. 5.
Connect the Electrical Cable to the Dispense
Valve
Connect electrical cable plug from your Therm–O–
Flow or Therm–O–Flow Plus hose or control.
These valves are air to open and air to close with a
spring to bias them closed. Use a 4–way exhausting
solenoid to operate these valves.
Making sure to connect the appropriate air lines to the
appropriate ports (see FIG. 5), securely connect air lines
to dispense valve air ports
(G).
Snuff-Back Valve Shown
FIG. 5
8
310538P
Installation
Grounding
Ground the Automatic Dispense Valve:
WARNING
FIRE, EXPLOSION, AND ELECTRIC
HAZARD
To reduce the risk of fire, explosion, or
electric shock:
• The power source conduit is not an adequate ground for the system. The unit must
be grounded to either the building ground or
a true earth ground.
1. Connect the connector from a heated hose to the
receptacle on the dispense valve.
Ground lead
coming from pin
E is fastened to
the bracket.
• A qualified electrician must complete all
grounding and wiring connections and check
the resistance.
• Refer to your local code for the requirements for a “true earth ground” in your area.
• Also read and follow the warnings on page
5.
FIG. 6
Ground lead
coming from contact 8 to true
earth ground.
FIG. 7
2. Connect the electrical cable to the electrical control
panel.
3. Verify that socket contact E on six pin models (see
FIG. 5) or contact eight on eight pin models (see FIG.
7), inside control panel receptacle, is connected to
true earth ground.
310538P
9
Troubleshooting
Troubleshooting
Some solutions require disassembling the automatic dispense valve. Always relieve system pressure before
performing these procedures. See PARTS section for the parts that need to be serviced..
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow
the Pressure Relief Procedure (page 11).
Problem
Cause(s)
Solution(s)
Air leaks from automatic dispense
valve
Loose air connections
Check air connections.
Worn o-rings
Replace o-rings (90) and (100) in cylinder
Worn ring
Replace ring (110) in cylinder base.
Seal, spacer or retaining ring is worn
Replace rod seal (150), spacer (160),
Obstruction inside dispense valve
Remove seat adapter (10). Check and
base.
Material leaks from front of
automatic dispense valve
and retaining ring (170).
replace if necessary, rod seal (150),
spacer (160), and retaining ring (170).
Worn needle
Check and replace needle (140), if
necessary.If replacing needle, you must
disassemble dispense valve.
Worn seat (Base seal models)
Check and replace seat (10) if necessary.
Material leaks from automatic dispense Seal not installed correctly
valve body
Seal is worn
Check seal (70) and replace if necessary.
Automatic dispense valve
Loose air connections
Check air connections.
does not shut off
Worn needle-seal interface
Check and replace, if necessary, needle
(140), rod seal (150), spacer (160), and
retaining ring (170).
If replacing needle, you must disassemble
dispense valve
Automatic dispense valve
Worn spring-piston interface
does not shut off
Disassemble dispense valve. Check
and replace, if necessary, needle (140),
and spring (370).
Automatic dispense valve
Spring broken or not installed correctly
does not shut off
Disassemble dispense valve. Check
and replace, if necessary, needle (140),
and spring (370).
Automatic dispense valve does not
heat material
10
Loose heater wires
Check and reconnect wire connections.
Loose sensor wires
Check and reconnect wire connections.
Heater unit failed
Replace heater. See page 17.
Sensor failed
Replace sensor. See page 17.
Temperature controller failed
Replace temperature controller.
No power to heating circuitry
Apply power to heating circuitry.
310538P
Service
Service
Pressure Relief Procedure
WARNING
HOT SURFACE AND FLUID HAZARD
The material and equipment will be hot!
To reduce the risk of injury, wear eye
protection, gloves and protective clothing
when installing, operating, or servicing this
dispensing system.
SKIN 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 reduce the risk
of an injury from injection, splashing fluid, or
moving parts, follow the Pressure Relief
Procedure whenever you:
•
•
•
•
are instructed to relieve the pressure
stop spraying/dispensing
install or clean the nozzle
check or service any of the system
equipment
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 part of the system,
to reduce the risk of serious injury.
1. Shut off the material supply.
2. Shut off electrical power to the automatic dispense
valve.
3. Close all self bleeding air supply valves for supply
unit.
4. Have a container ready to catch the drainage, then
bleed off material pressure by actuating the dispense valve.
5. Shut off air supply to valve.
NOTE: If you suspect that the nozzle or hose is completely clogged, or that the pressure has not been fully
relieved after following the steps above, very slowly
loosen the tip guard, retaining nut or hose end coupling
to relieve pressure gradually, then loosen completely.
Then clear the tip/nozzle or hose.
PRESSURIZED FLUID HAZARD
High pressures can cause serious personal
injury. Be sure to open the dispense valve
during system heat-up to alleviate pressure which might occur in the system due to
material expansion.
310538P
11
Service
Prepare to Service the
Automatic Dispense Valve
If the unit is hot, determine whether or not you can
service the unit after it has cooled down. Some
materials, like polyurethanes, may cure permanently
when cooled and exposed to air, preventing you from
disassembling the dispense valve. If you are working
with such a material, service the unit while the material
is at a temperature where the material is soft enough to
work with. If the material can be reheated at a later time,
you can service the unit after it has cooled, reheating
the material as necessary.
Perform this procedure before servicing the automatic
dispense valve.
1. Relieve the system pressure.
WARNING
To reduce the risk of serious injury, whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 11).
2. Make sure material flow has been shut off.
3. Make sure system air has been shut off.
4. Remove power from the automatic dispense valve.
WARNING
HOT SURFACE AND FLUID HAZARD
The material and equipment will be hot! To
reduce the risk of injury, wear eye protection,
gloves and protective clothing when
servicing this dispensing system component.
5. If the material in the dispense valve can be
12
310538P
Service
Service the Automatic Dispense
Valve
Some dispense valve seals and o-rings can be replaced
while the dispense valve is still mounted. However, to
replace the needle, you must remove the automatic
dispense valve from the mounting bracket and
disassemble it.
Prior to installation, lubricate all seals and o-rings with
115982 Graco thermal lubricant (3 oz. cartridge) or an
equivalent lubricant. Check with the material supplier for
a compatible lubricant.
Disconnect the Automatic
Dispense Valve from the
Mounting Bracket
Remove the automatic dispense valve from its mounting
bracket.
1. Perform the procedures in Prepare to Service the
Automatic Dispense Valve on page 12.
WARNING
HOT SURFACE AND FLUID HAZARD
The material and equipment may be hot!
To reduce the risk of injury, wear eye
protection, gloves and protective clothing
when servicing this dispensing system
component.
2. Disconnect the cable plug from receptacle on dispense valve (H). See FIG. 8 on page 13.
3. Disconnect air lines from dispense valve air ports
(G).
4. Disconnect material hose from material inlet port
(A).
5. Separate the dispense valve body from the temperature conditioning manifold if used:
Reconnect the Automatic
Dispense Valve to the Mounting
Bracket
Reconnect the automatic dispense valve to its mounting
bracket. See FIG. 8.
1. Reconnect air lines to dispense valve air ports (G).
Snuff-Back Valve Shown
2. Reconnect the electrical cable plug to the receptacle (H).
FIG. 8
3. Reconnect the material hose to the dispense valve
material inlet port (A).
310538P
13
Service
Disassemble the Automatic
Dispense Valve
4. Remove the four socket head screws (310) and pull
cylinder cap (260) and cylinder base (240) from the
dispense valve body (190). The needle and piston
remain with the cap and base.
5. Remove cap from base.
6. Remove needle from either the cap or the base
(depending on which piece it went with). When the
needle is separated from the base, the closure
spring (370) falls out.
7. Using an o-ring pick, remove dispense valve body
seal (70).
8. Disassemble adapter assembly (FIG. 10):
a. Unscrew nozzle adapter (C).
b. Remove three socket head screws (30 in FIG.
9).
c.
Snuff-Back Valve Shown
Remove seat adapter (10). Contains seat on
base seal valves.
d. Remove retaining ring (170) from adapter seat
(FIG. 10). Not on base seal guns.
FIG. 9
To disassemble the automatic dispense valve:
1. Relieve automatic dispense valve pressure.
e. Remove seal (150) and spacer (160) from
adapter seat (FIG. 10). not on base seal guns.
f.
Remove o-ring (20) from adapter seat.
WARNING
To reduce the risk of serious injury, whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 11).
2. Make sure you have removed the dispense valve
from its mounting.
3. Remove the cable plug from the automatic dispense
valve.
a. Remove the two screws (230) from the connector cover. Then remove the connector cover.
b. Remove the two socket head screws [FIG. 9,
Item (200)], two washers (210). The heater cartridge (270) and sensor (320) will come out of
the dispense valve body (FIG. 15).
14
Snuff-Back Valve Shown
FIG. 10
310538P
Service
Reassemble the Automatic
Dispense Valve
g. Slide base (240), over the needle, into the cylinder cap (260). Seat spring (370) in groove on
base.
Prior to installation, lubricate all seals and o-rings with
115982 Graco high temperature grease (3 oz.
cartridge), or an equivalent lubricant. Check with the
material supplier for a compatible lubricant.
To reassemble the automatic dispense valve:
1. Make sure all parts are free of solid material residue.
2. Reassemble adapter assembly (FIG. 10):
a. Lubricate and replace o-ring (20).
b. Lubricate and replace seal (150) and spacer
(160). Make sure the seal energizer faces
toward the material pressure.
c.
Replace retaining ring (170).
d. Replace seat retainer (10).
Snuff-Back Valve Shown
FIG. 11
e. Insert and tighten three socket head screws (30
in FIG. 9).
f.
Screw on nozzle adapter (C).
3. Lubricate then replace dispense valve body seal
(70). Make sure the seal energizer faces toward the
material pressure.
4. Reassemble cap and base (FIG. 11):
a. Lubricate o-ring (100) and ring (110).
b. Insert o-ring (100) into needle piston (140)
groove.
Base Seal Valves
FIG. 12
c.
Slide ring (110) on top of o-ring (100).
d. Lubricate, then replace o-rings (90) and (250).
Insert spring on base seal models (FIG. 12).
e. Insert needle assembly into cylinder cap (260).
f.
Place spring (370) over shaft of needle/piston.
Seat spring in groove on piston face on snuffback models (FIG. 11).
310538P
5. Reconnect the cable receptacle to the automatic
dispense valve. See FIG. 13.
a. Re-insert heater cartridge and sensor into their
appropriate holes.
b. Ensure the ground wire (380) is connected to
the bracket (330).
15
Service
c.
Connect the receptacle to the dispense valve
body. Then secure it with the two socket head
screws (200) and washers (210).
d. Reattach the receptacle cover. Then secure it
with the two screws (230).
Replace the Heater Unit or
Sensor
You can replace the automatic dispense valve heater
unit or sensor without removing the automatic dispense
valve from its mounting bracket. You only have to
disconnect the cable connector from the automatic
dispense valve.
This procedure requires:
•
•
•
•
•
soldering iron
solder
shrink wrap
wire cutters
heat sink compound, Graco part number C07664 or
equivalent. Check with the material supplier for a
compatible compound.
FIG. 13
1. Perform the procedures in Prepare to Service the
Automatic Dispense Valve on page 12.
2. Remove the cable receptacle from the automatic
dispense valve.
a. Remove the two screws from the connector
cover [FIG. 9, Item (230)] and remove the receptacle cover.
b. Remove the two socket head screws [FIG. 14,
Item (200)], two washers (210). The heater cartridge (270) and sensor (320) will come out of
the dispense valve body.
FIG. 14
16
310538P
Service
3. Remove old heater cartridge or sensor.
a. Locate the leads to the part you are replacing.
b. Remove the shrink wrap from the leads.
c.
Unsolder the leads from the connector. Cut the
leads on 8 pin models, leaving enough to strip
and solder the leads.
4. Install new heater unit or sensor:
b. Solder the leads to the appropriate connector
(FIG. 15) for 6 pin connector. For Therm–O–
Flow 8 pin assemblies, removal and replacement of the heaters and RTD require a pin
extraction tool, new pins, and a pin crimping
tool. These tools meet spec MIL–C–22520 [Ref.
Daniels AF8 (crimp tool) or equivalent, available
at local electrical supply warehouse.
c.
Coat heater or sensor with heat sink compound.
d. Gently slide new heater or sensor into appropriate hole.
e. Either shrink the shrink wrap, or use electrical
tape to electrically insulate the connection
between the leads and connector pins.
5. Reconnect the dispense valve to the receptacle
(FIG. 14):
FIG. 15
a. Reattach the receptacle base to the dispense
valve body and secure it with the two socket
head screws [FIG. 14, Items (200) and washer
(210)].
b. Reattach the receptacle cover to the Amphenol
connector base and secure the cover with the
screws.
FIG. 16
a. Install the shrink wrap over the leads.
310538P
17
Service
Inspection Frequency
Automatic Dispense Valve
Inspect automatic dispense valve at least once every
two weeks for leakage or other visible damage.
Check specifically for:
•
•
material leaks
air leaks
Hoses/Tubes
Inspect hoses/tubes at least once every two weeks for
leakage or other visible damage.
•
•
material hose
air hoses
Heater
Every two weeks, check heater for proper resistance.
Resistance should be approximately 96 ohms for the
120 volt valves or 288 ohms (+30/–40) for the 240 volt
valves. Replace heater if necessary.
Also inspect heater when performing regular maintenance procedures.
Sensor
Every two weeks, check sensor resistance. Resistance
should be 108 ohms at 21C (70F). Replace sensor if
necessary.
Also inspect sensor when performing regular maintenance procedures.
18
310538P
Parts
Parts
Model 194485, Warm (275°F/135°C max) Automatic Dispense Valve with Snuff Back
310538P
19
Parts
Model 194485, Warm (275°F/135°C max) Automatic Dispense Valve with Snuff Back
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
617479
16D530
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
100016
111591
C34044
551190
C34030
113944
103649
C32088
617495
130*
140
150*
160
170*
180
190
200
C20521
918471
C54172
617480
C20406
C34045
194527
112166
210
C19197
ADAPTER, seat
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, Polymite
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
SCREW, button head,
1/4” - 20 x 0.31
SEAL, thread
NEEDLE, piston
SEAL, rod, 0.25 x 0.50 x 0.25
SPACER
RING, retaining, for 0.56 I.D.
SPACER
BODY, gun
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
2
4
1
1
4
1
1
1
1
1
1
1
1
1
2
1
2
2
Part No. Description
Qty.
220
230
C34040 COVER
1
C19269 SCREW, fill. hd. machine,
2
#4 - 40 x 0.25
240
617537 BASE, cylinder
1
250* 103337 O-RING, -010 fluoroelastomer 1
260
C34028 CAP, cylinder
1
270 C31034 HEATER, cartridge 120V, 150W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
340
102794 NUT, hex, #4 - 40
4
350
C19270 SCREW, fill. hd. machine,
4
#4 - 40 x 0.38
360
C07329 CONNECTOR, 6 pin
1
370* 617536 SPRING
1
380
065345 WIRE, high temp. (127 mm)
5”
390
101674 TERMINAL, ring
1
400
C07664 COMPOUND, heat sink
A/R
460
112144 SCREW
1
510
157021 WASHER, lock
1
* These parts are included in Repair Kit 194486, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
20
310538P
Parts
Model 918483, Therm-O-Flow Automatic Dispense Valve with Snuff Back
310538P
21
Parts
Model 918483, Therm-O-Flow Automatic Dispense Valve with Snuff Back
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
617479
16D530
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
100016
110755
C34044
617604
C34030
113944
103649
C32088
617495
130* C20521
140 918471
150* 617491
160
170*
180
190
200
617480
C20406
C34045
617605
112166
210
C19197
ADAPTER, seat
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
SCREW, button head,
1/4” - 20 x 0.31
SEAL, thread
NEEDLE, piston
SEAL, rod hi temp,
0.25 x 0.50 x 0.25
SPACER
RING, retaining, for 0.56 I.D.
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
2
4
1
1
4
1
1
1
1
1
1
1
1
1
2
1
2
2
Part No. Description
Qty.
220
230
C34040 COVER
1
C19269 SCREW, fill. hd. machine,
2
#4 - 40 x 0.25
240
617603 BASE, cylinder
1
250* 103337 O-RING, -010 fluoroelastomer 1
260
C34028 CAP, cylinder
1
270 C31034 HEATER, cartridge 120V, 150W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
340
102794 NUT, hex, #4 - 40
4
350
C19270 SCREW, fill. hd. machine,
4
#4 - 40 x 0.38
360
C07329 CONNECTOR, 6 pin
1
370* 617536 SPRING
1
380
065345 WIRE, high temp. (127 mm)
5”
390
101674 TERMINAL, ring
1
400
C07664 COMPOUND, heat sink
A/R
460
112144 SCREW
1
510
157021 WASHER, lock
1
* These parts are included in Repair Kit 918520, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
22
310538P
Parts
Model 918512, Ambient Therm-O-Flow Automatic Dispense Valve with Snuff Back
310538P
23
Parts
Model 918512, Therm-O-Flow Automatic Dispense Valve with Snuff Back
Ref
No.
Part No. Description
Qty.
10
20
30
617 479
16D530
C19800
1
1
5
40
50
60
70
80
90
100
110
120
24
ADAPTER, seat
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
100016 WASHER, lock, 1/4”
110755 WASHER, flat, 1/4”
617536 SPRING
C34032 SEAL
C34030 SPACER
113944 O-RING, -123 fluoroelastomer
103649 O-RING
C32088 O-RING
112925 SCREW, button head, 1/4” - 20
x 0.31
Á
2
4
1
1
4
1
1
1
1
Ref
No.
Part No. Description
Qty.
130
140
150
160
170
190
200
210
220
230
240
C20521
617491
918471
617480
111209
194527
617537
103337
C34028
C32089
104594
1
1
1
1
1
1
1
1
1
1
4
SEAL, thread
SEAL, outlet
NEEDLE assembly
SPACER
RING, retaining, for 0.56 I.D.
BODY
BASE, cylinder
O-RING, -010 fluoroelastomer
CAP, cylinder
RETAINER
SCREW, cap
 Keep these spare parts on hand to reduce down time.
310538P
Parts
Model 918639, Therm-O-Flow Automatic Dispense Valve with Snuff Back
310538P
25
Parts
Model 918639, Therm-O-Flow Automatic Dispense Valve with Snuff Back
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
617690
16D530
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
100016
110755
C34044
617604
C34030
113944
103649
C32088
617495
130* C20521
140 918471
150* 617491
160
170*
180
190
200
617480
C20406
C34045
617605
112166
210
C19197
ADAPTER, nozzle/valve
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
SCREW, button head,
1/4” - 20 x 0.31
SEAL, thread
NEEDLE, piston
SEAL, rod hi temp,
0.25 x 0.50 x 0.25
SPACER
RING, retaining, for 0.56 I.D.
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
2
4
1
1
4
1
1
1
1
1
1
1
1
1
2
1
2
2
Part No. Description
Qty.
220
230
C34040 COVER
1
C19269 SCREW, fill. hd. machine,
2
#4 - 40 x 0.25
240
617603 BASE, cylinder
1
250* 103337 O-RING, -010 fluoroelastomer 1
260
C34028 CAP, cylinder
1
270 C31034 HEATER, cartridge 120V, 150W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
340
102794 NUT, hex, #4 - 40
4
350
C19270 SCREW, fill. hd. machine,
4
#4 - 40 x 0.38
360
C07329 CONNECTOR, 6 pin
1
370* 617536 SPRING
1
380
065345 WIRE, high temp. (127 mm)
5”
390
101674 TERMINAL, ring
1
400
C07664 COMPOUND, heat sink
A/R
460
112144 SCREW
1
510
157021 WASHER, lock
1
* These parts are included in Repair Kit 918520, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
26
310538P
Parts
Model 243694, Therm-O-Flow Automatic Dispense Valve
310538P
27
Parts
Model 243694, Therm-O-Flow Automatic Dispense Valve
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
C32083
103610
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
180
190
200
100016
110755
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C32082
C34045
C32097
112166
210
220
230
C19197
C34040
C19269
240
250*
260
C32085
103337
C34028
28
ADAPTER, seat
O-RING, -018 flouroelastomer
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, graphite/PTFE
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
NUT, hex
SCREW, set
SEAL, thread
NEEDLE, assembly
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
COVER
SCREW, fill. hd. machine,
#4 - 40 x 0.25
BASE, cylinder
O-RING, -010 fluoroelastomer
CAP, cylinder
2
4
1
1
4
1
1
1
1
1
1
1
2
1
2
2
1
2
1
1
1
Part No. Description
Qty.
270 116011 HEATER, cartridge 230V, 200W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
350
C19949 SCREW, pan hd. machine,
2
#4 - 40 x 0.5
360
115861 HOUSING, 8 pin
1
370
C34041 SPRING
1
380
065345 WIRE, high temp. (127 mm)
5”
390
101674 TERMINAL, ring
1
410
C32090 SEAT
1
420
C32089 NUT, retainer
1
430
115860 INSERT, male
1
440
115862 CONNECTOR, male, crimp
1
460
112144 SCREW, PH 8-32 x 1/4
1
510
157021 WASHER, lock
1
520
116640 CONNECTOR
4
* These parts are included in Repair Kit C27342, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
310538P
Parts
Model 297266, Automatic Hot Melt Swirl Dispense Valve
310538P
29
Parts
Model 297266, Automatic Hot Melt Swirl Dispense Valve
Ref
No.
Ref
No.
Part No. Description
10
20*
30
C32083
103610
C19800
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
180
190
200
100016
110755
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C32082
C34045
C32097
112166
210
220
230
C19197
C34040
C19269
240
250*
260
270
C32085
103337
C34028
116011
30
Qty.
ADAPTER, seat
1
O-RING, -018 flouroelastomer 1
SCREW, soc. hd. cap,
5
1/4” - 20 x 0.5
WASHER, lock, 1/4”
2
WASHER, flat, 1/4”
4
PLATE, blank-off
1
SEAL, graphite/PTFE
1
SPACER
4
O-RING, -125 flouroelastomer 1
O-RING, -123 flouroelastomer 1
RING
1
NUT, hex
1
SCREW, set
1
SEAL, thread
1
NEEDLE, assembly
1
SPACER
2
BODY
1
SCREW, soc. hd. cap,
2
1/4” - 20 x 0.75
WASHER, flat, 3/16
2
COVER
1
SCREW, fill. hd. machine,
2
#4 - 40 x 0.25
BASE, cylinder
1
O-RING, -010 fluoroelastomer 1
CAP, cylinder
1
HEATER, cartridge 230V, 200W 1
280
290
Part No. Description
C32099 BLOCK, mounting
C33037 TAPE, fiberglass,
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
330
C34043 BRACKET
350
C19949 SCREW, pan hd. machine,
#4 - 40 x 0.5
360
115861 HOUSING, 8 pin
370
C34041 SPRING
380
065345 WIRE, high temp. (127 mm)
390
101674 TERMINAL, ring
410
C32090 SEAT
430
115860 INSERT, male
440
115862 CONNECTOR, male, crimp
460
112144 SCREW, PH 8-32 x 1/4
480
15H098 ADAPTER, swirl
490
118072 HEAD. applicator, swirl
500
117950 NOZZLE, swirl, 0.30
510
157021 WASHER, lock
520
116640 CONNECTOR
Qty.
1
9”
2
4
1
1
2
1
1
5”
1
1
1
1
1
1
1
1
1
4
* These parts are included in Repair Kit C27342, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
310538P
Parts
Model 243695, Therm-O-Flow Automatic Dispense Valve
310538P
31
Parts
Model 243695, Therm-O-Flow Automatic Dispense Valve
Ref
No.
Part No. Description
Qty.
10
20*
30
C51762
16D530
C19800
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
150
160
170
180
190
200
210
220
230
240
250*
32
Ref
No.
Part No. Description
C34028
116011
C32099
C33037
1
1
5
100016
ADAPTER, seat
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
260
270
280
290
2
300
C19810
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C32082
PLATE, blank-off
SEAL
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
NUT, hex
SCREW, set
SEAL, thread
NEEDLE, piston
1
1
4
1
1
1
1
1
1
1
310
104594
C34045 SPACER
C32097 BODY
112166 SCREW, soc. hd. cap,
1/4” - 20 x 0.75
C19197 WASHER, flat, 3/16
C34040 COVER
C19269 SCREW, fill. hd. machine,
#4 - 40 x 0.25
C32085 BASE, cylinder
103337 O-RING, -010 fluoroelastomer
2
1
2
6
1
2
320 C32255
330
C34043
350
C19949
360
370
380
390
410
430
440
460
510
520
115861
C34041
065345
101674
C51774
115860
115862
112144
157021
116640
Qty.
CAP, cylinder
1
HEATER, cartridge 230V, 200W 1
BLOCK, mounting
1
TAPE, fiberglass,
9”
0.5” wide (229 mm)
SCREW, soc. hd. cap,
2
1/4” - 20 x 1
SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
SENSOR, RTD
1
BRACKET
1
SCREW, pan hd. machine,
2
#4 - 40 x 0.5
HOUSING, conn.
1
SPRING
1
WIRE, high temp. (127 mm)
5”
TERMINAL, ring
1
SEAT
1
INSERT, male
1
CONNECTOR, male
1
SCREW
1
WASHER, lock
1
CONNECTOR
4
* These parts are included in Repair Kit C50594, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
1
1
310538P
Parts
Model 243696, Therm-O-Flow Automatic Dispense Valve with Snuff Back
310538P
33
Parts
Model 243696, Therm-O-Flow Automatic Dispense Valve with Snuff Back
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
40
50
60
70*
80
90*
100*
110*
120
617479
16D530
C19800
100016
110755
C34044
617604
C34030
113944
103649
C32088
617495
1
1
5
2
4
1
1
4
1
1
1
1
130* C20521
140 918471
150* 617491
160
170*
180
190
200
617480
C20406
C34045
617605
112166
210
220
230
C19197
C34040
C19269
240
250*
260
617603
103337
C34028
34
ADAPTER, seat
O-RING
SCREW, soc. hd. cap
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, PTFE, 0.25 x 0.44
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
SCREW, button head,
1/4” - 20 x 0.31
SEAL, thread
NEEDLE, assembly
SEAL, rod hi temp,
0.25 x 0.50 x 0.25
SPACER
RING, retaining, for 0.56 I.D.
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
COVER
SCREW, fill. hd. machine,
#4 - 40 x 0.25
BASE, cylinder
O-RING, -010 fluoroelastomer
CAP, cylinder
1
1
1
1
1
2
1
2
2
1
2
Part No. Description
Qty.
270 116011 HEATER, cartridge 230V, 200W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
340
112144 SCREW
1
350
C19949 SCREW, pan hd. machine,
2
#4 - 40 x 0.5
360
115860 INSERT, male
1
370* 617536 SPRING
1
390
065345 WIRE, high temp, (127 mm)
5”
400
101674 TERMINAL, ring
1
410
C32089 NUT, nozzle
1
420
115861 HOUSING, connector
1
430
115862 CONNECTOR, male
1
510
157021 WASHER, lock
1
520
116640 CONNECTOR
4
* These parts are included in Repair Kit 918520, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
1
1
1
310538P
Parts
Model C27340, Ambient Therm-O-Flow Automatic Dispense Valve, Double Acting
310538P
35
Parts
Model C27340, Ambient Therm-O-Flow Automatic Dispense Valve, Double Acting
Ref
No.
Part No. Description
Qty.
10
20
30
C32083
103610
C19800
1
1
3
60
70
80
90
100
110
120
C34041
C34032
C34030
113944
103649
C32088
C19359
36
ADAPTER, seat
O-RING, -018 flouroelastomer
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
SPRING
SEAL
SPACER
O-RING, -123 flouroelastomer
O-RING
GLIDE RING
SCREW, set, 1/4” - 20 x 1.5
1
1
4
1
1
1
1
Ref
No.
Part No. Description
Qty.
130
150
190
210
220
230
240
250
270
280
112248
C32082
C32097
103337
C34028
C32089
C32085
C20521
C32090
104594
1
1
1
1
1
1
1
1
1
4
NUT, hex, 1/4” - 20
NEEDLE assembly
BODY
O-RING, -010 fluoroelastomer
CAP, cylinder
RETAINER
BASE, cylinder
SEAL, thread
SEAT
SCREW, soc. hd.
 Keep these spare parts on hand to reduce down time
310538P
Parts
Model C34068, Warm Automatic Dispense Valve, Double Acting
310538P
37
Parts
Model C34068, Warm (275°F/135°C max) Automatic Dispense Valve with Snuff Back
Ref
No.
Ref
No.
Part No. Description
Qty.
10
20*
30
C32083
103610
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
180
190
200
100016
110755
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C32082
C34045
C32097
112166
210
220
230
C19197
C34040
C19269
240
250*
260
C32085
103337
C34028
38
ADAPTER, seat
O-RING, -018 flouroelastomer
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, graphite/PTFE
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
NUT, hex
SCREW, set
SEAL, thread
NEEDLE, assembly
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
WASHER, flat, 3/16
COVER
SCREW, fill. hd. machine,
#4 - 40 x 0.25
BASE, cylinder
O-RING, -010 fluoroelastomer
CAP, cylinder
2
4
1
1
4
1
1
1
1
1
1
1
2
1
2
6
1
2
1
1
1
Part No. Description
Qty.
270 C31034 HEATER, cartridge 120V, 150W 1
280
C32099 BLOCK, mounting
1
290
C33037 TAPE, fiberglass,
9”
0.5” wide (229 mm)
300
C19810 SCREW, soc. hd. cap,
2
1/4” - 20 x 1
310
104594 SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
320 C32255 SENSOR, RTD
1
330
C34043 BRACKET
1
340
102794 NUT, hex, #4 - 40
350
C19270 SCREW, fill. hd. machine,
2
#4 - 40 x 0.38
360
C07329 CONNECTOR, 6 pin
1
370
C34041 SPRING
1
380
065345 WIRE, high temp. (127 mm)
5”
390
101674 TERMINAL, ring
1
400
073019 COMPOUND, heat sink (not
shown)
410
C32090 SEAT
1
420
C32089 NUT, retainer
1
460
112144 SCREW
1
510
157021 WASHER, lock
1
* These parts are included in Repair Kit C27342, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
310538P
Parts
Model C34079, Therm-O-Flow Automatic Dispense Valve, Double Acting
310538P
39
Parts
Model C34079, Therm-O-Flow Automatic Dispense Valve, Double Acting
Ref
No.
Part No. Description
Qty.
10
20*
30
C51762
16D530
C19800
1
1
5
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
180
190
200
100016
C19197
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C32082
C34045
C32097
112166
220
230
C34040
C19269
240
250*
C32085
103337
40
ADAPTER, seat
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, graphite/PTFE
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING
NUT, hex
SCREW, set
SEAL, thread
NEEDLE, assembly
SPACER
BODY
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
COVER
SCREW, fill. hd. machine,
#4 - 40 x 0.25
BASE, cylinder
O-RING, -010 fluoroelastomer
2
6
1
1
4
1
1
1
1
1
1
1
2
1
2
1
2
1
1
Ref
No.
Part No. Description
260
270
280
290
C34028
C31034
C32099
C33037
300
C19810
310
104594
320
330
340
350
360
370
380
390
400
C32255
C34043
102794
113970
C07329
C34041
065345
101674
073019
410
460
510
C51774
112144
157021
Qty.
CAP, cylinder
1
HEATER, cartridge 120V, 150W 1
BLOCK, mounting
1
TAPE, fiberglass,
9”
0.5” wide (229 mm)
SCREW, soc. hd. cap,
2
1/4” - 20 x 1
SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
SENSOR, RTD
1
BRACKET
1
NUT, hex, #4 - 40
4
SCREW, machine, #4 - 40
4
CONNECTOR, 6 pin
1
SPRING
1
WIRE, high temp. (127 mm)
5”
TERMINAL, ring
1
COMPOUND, heat sink (not
A/R
shown)
SEAT
1
SCREW
1
WASHER, lock
1
* These parts are included in Repair Kit C34080, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
310538P
Parts
Model C50592, Therm-O-Flow Automatic Dispense Valve, Double Acting
310538P
41
Parts
Model C50592, Therm-O-Flow Automatic Dispense Valve, Double Acting
Ref
No.
Part No. Description
Qty.
10
15
20*
30
C50881
C50582
16D530
C19800
1
1
1
2
40
50
60
70*
80
90*
100*
110*
120
125
130*
140
180
190
195
200
100016
C19197
C34044
C34032
C34030
113944
103649
C32088
112248
C19359
C20521
C50583
C34045
C32097
100333
112166
215*
220
225
230
109576
C34040
112788
C19269
235
240
100079
C32085
42
ADAPTER, nozzle manifold
MANIFOLD, nozzle
O-RING
SCREW, soc. hd. cap,
1/4” - 20 x 0.5
WASHER, lock, 1/4”
WASHER, flat, 1/4”
PLATE, blank-off
SEAL, graphite, PTFE
SPACER
O-RING, -125 flouroelastomer
O-RING, -123 flouroelastomer
RING, piston
NUT, hex
SCREW, set
SEAL, thread
NEEDLE, assembly
SPACER
BODY
SCREW, cap, hex. hd.
SCREW, soc. hd. cap,
1/4” - 20 x 0.75
O-RING, fluoroelastomer
COVER
SCREW, soc. hd. cap
SCREW, fill. hd. machine,
#4 - 40 x 0.25
WASHER, lock, spring
BASE, cylinder
5
6
1
1
4
1
1
1
1
1
1
1
2
1
3
2
1
1
4
2
Ref
No.
Part No. Description
250*
260
270
280
290
103337
C34028
C31034
C32099
C33037
295
300
C38014
C19810
310
104594
320
330
340
350
360
370
380
390
400
C32255
C34043
102794
113970
C07329
C34041
065345
101674
073019
460
510
112144
157021
Qty.
O-RING, -010 fluoroelastomer 1
CAP, cylinder
1
HEATER, cartridge 120V, 150W 1
BLOCK, mounting
1
TAPE, fiberglass,
11”
0.5” wide (229 mm)
PLUG, o-ring boss
1
SCREW, soc. hd. cap,
2
1/4” - 20 x 1
SCREW, soc. hd. cap,
4
1/4” - 20 x 3.25
SENSOR, temperature
1
BRACKET
1
NUT, hex, #4 - 40
4
SCREW, machine, #4 - 40
4
CONNECTOR, 6 pin
1
SPRING
1
WIRE, lead, motor
5”
TERMINAL, ring
1
COMPOUND, heat sink (not
A/R
shown)
SCREW
1
WASHER, lock
1
* These parts are included in Repair Kit C50594, which
may be purchased separately.
 Keep these spare parts on hand to reduce down time.
4
1
310538P
Accessories
Accessories
Use Only Genuine Graco Parts and Accessories
Description
LOW PRESSURE HEATED HOSES
14 MPa (138 bar, 2000 psi) Heated hoses for use with Therm-O-Flow® 5 and
Therm-O-Flow 55 supply units. Contact your Graco Service Representative for more
information.
Part No.
HIGH PRESSURE HEATED HOSES
28 MPa (275 bar, 4000 psi) Heated hoses for use with Therm-O-Flow 5 and Therm-O-Flow
55 supply units. Contact your Graco Service Representative for more information.
HOSE FITTINGS
For use with heated hoses. Do not use fittings with temperature ratings that are lower than
the operating temperature of your system. Contact your Graco Service Representative for
more information.
#8–37° SAE [3/4–16 (m)] x 1/2 npt male adapter
#10–37° SAE [7/8”–14 (m)] x 1/2 npt male adapter
C20700
C20703
NOTE: The following accessories are not applicable to Model 297266.
EXTRUSION NOZZLE ADAPTER NUT [5/8-18(f) x 1/8 npt(f)]
C32089
Adapts 1/8”–27 npt (m) nozzles to dispense valve. Accepts the adapter nut. 5/8–18F X 1/8
npt(f) nozzles listed below. Contact your Graco Service Representative for more
information.
Description
Nozzle
Length
2”
2”
21/8”
2-7/16”
1-7/32”
Orifice
Thread
Ø 3/32”
1/8” npt
Ø 1/84”
Ø 1/8”
Ø 3/32” x 3/8”
Ø 1/8”
Part No.
161505
607665
164799
C01025
C17009
STREAMING TIP ADAPTERS
617585
Ø 0.469 opening adapter for automatic dispense valve. Use tips listed below. The last 3 digits of the
part number indicate the orifice size. Contact your Graco Service Representative for streaming tip
selection.
Orifice Size
(inches)
Part No.
Odd sizes .025” through .047”
270025
0.25
270037
0.37
270047
0.47
310538P
Orifice Size
(inches)
.061
.063
.065
.067
.077
Part No.
270061
270063
270065
270067
270077
43
Accessories
AIR FITTINGS
Suggested air fittings for automatic dispense valve air inlet ports. Do not use fittings with
temperature ratings that are lower than the operating temperature of your system. Contact
your Graco Service Representative for more information.
Description
NPT
Tube
Part No.
90° elbow, brass push-in tube
1/8” male
1/4” O.D.
C19389
SOLENOID VALVE KITS
For heated double acting air actuated valves. Includes
solenoid, 24” high temperature air tubes, air fittings, and
muffler.
Coil Voltage
Part No.
120 Volt AC
230 Volt AC
24 Volt DC
C58942
243703
C59038
SWIRL ASSEMBLIES
For Model 297266 only.
Description
Orifice Size (in.)
Part No.
Swirl applicator head
Swirl nozzle
Swirl nozzle
Swirl nozzle
Swirl nozzle
n/a
.030
.045
.060
.080
118072
117950
117951
117952
117953
44
310538P
Dimensions
Dimensions
310538P
45
Dimensions
46
310538P
Technical Data
Technical Data
Maximum working dry air pressure
1 MPa (10 bar, 150 psi)
Material Inlet (to conditioning manifold)
1/2” npt
Air Inlet
1/8” npt
120 Volt Heater (Models C34068, C34079,
C50592, 194485, 918483, 918512, and 918639)
150w @ 120 Vac, 96 ohms +/–10
240 Volt Heater (Models 243694, 243695, 243696,
and 297266)
RTD Sensor
200w @ 240 Vac, 288 ohms +30/–40
100 Ohm platinum RTD, 0.00385 ohm/ohm/deg C
(108.2 ohms @ 21C (70F))
Weight (automatic dispense valve + connector)
approx. 1.8 kg (4 lbs)
Fluid Seal
Material
Part
No.
Max.
Temp.
Maximum Fluid Working
Pressure
Maximum Air Input
Pressure
Parts
Page
Polymite/
fluoroelastomer
194485
135° C (275° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
20
PTFE/fluoroelastomer 918483
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
22
PTFE/fluoroelastomer 918512
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
24
PTFE/fluoroelastomer 918639
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
26
PTFE/fluoroelastomer 243694
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
28
PTFE/fluoroelastomer 297266
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
30
PTFE/fluoroelastomer 243695
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
31
PTFE/fluoroelastomer 243696
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
33
PTFE/fluoroelastomer C27340
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
35
PTFE/fluoroelastomer C34068
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
37
PTFE/fluoroelastomer C34079
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
39
PTFE/fluoroelastomer C50592
205° C (400° F)
241 bar, 24 MPa (3500 psi) 10 bar, 1MPa (150 psi)
41
WETTED PARTS (all values)
Stainless Steel, plated carbon steel, chrome, brass.
PrecisionFlo™ is a trademark of Graco, Inc.
PARKER O LUBE is a trademark of Parker Seal.
POLYMITE is a trademark of Parker Seal.
Material Outlet
C34079 and 243695
1/2 npt(m)
194485, 918483
5/8–18 thread to accept
nozzle retaining nuts
918512, 243694, and
243696
Nozzle retaining nut with
1/8 npt(f)
918639
3/4–16 (37SAE #8)
310538P
47
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied 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 defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of 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 profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 310538
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 1997, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision P, August 2016

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