Instructions–Parts List
TI1377A
EnDure™ Automatic
Dispense Valves
Air-operated dispense valves used for sealant and adhesive materials.
3500 psi (24.10 MPa, 241 bar) Maximum Dynamic Discharge Fluid Working Outlet Pressure
5000 psi (34.5 MPa, 345 bar) Maximum Static Working Pressure
120 psi (.83 MPa, 8.3 bar) Maximum Air Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
309376L
EN
06540A
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 36
2 309376L
Models
Basic
Valve
Part No.
244535 244910 Valve, ambient or water
244907 244908 Valve, 120 Volt E-Heat
244937 244951 Valve, 230 Volt E-Heat
Complete
Valve
Part No.
244961 Valve, 120 Volt E-Heat
244962 Valve, 230 Volt E-Heat
244909 Valve, 230 Volt E-Heat
297261 Complete Valve, 240 Volt
245184 Valve, 120 Volt E-Heat
Description
(Replaces ...)
conditioned. Replaces
C27340 hard seat and
918512 soft seat snuff-back,
if application is under 95 C
(200 F).
Replaces valve 194485.
Any heated PrecisionFlo
before XL (July 2001) if
application is under 95 C
(200 F).
Replaces 243694 hard seat
and 243696 soft seat snuffback valves. Any Therm-OFlow Plus (after July 2000)
if application is under 95 C
(200 F).
Replaces C34068 hard
seat, 918483 soft seat
snuff-back, any
Therm-O-Flow before
Therm-O-Flow Plus (July
2000) if application is 95 C
(200 F) to 204 C (400 F).
Replaces 243694 hard seat
and 243696 soft seat snuffback valves. Any Therm-OFlow Plus (after July 2000) if
application is 95 C (200 F)
to 204 C (400 F).
E– Heat; Swirl Equipped
Replaces valve 243695
hard seat with 1/2” npt (m)
outlet. Any Therm-O-Flow
before Therm-O-Flow Plus
(July 2000) if application is
95 C (200 F) to 204 C (400
F).
Replaces C34079 hard seat
with 1/2” npt (m) outlet. Any
Therm-O-Flow Plus (after
July 2000) if application is
95 C (200 F) to 204 C (400
F).
Maximum
Fluid
Heater Voltage
Temperature
Rating C (F)
95 C (200 F) Nonpowered
95 C (200 F) 120 VAC
95 C (200 F) 230 VAC
204 C (400 F) 120 VAC
204 C (400 F) 230 VAC
204 C (400 F) 240 VAC
204 C (400 F) 230 VAC
204 C (400 F) 120 VAC
Pin Connector Wattage
ambient or water
circulation for
temperature
conditioning
6 Pin round
8 Pin square
6 Pin round
8 Pin square
8 Pin square
8 Pin square
6 Pin round
0
150
200
150
200
200
150
200
Valve Outlet
Connection
5/8–18 male
thread.
Retainer nut
with 1/8 npt(f)
5/8-18 male
thread.
Retainer nut
with 1/8 npt(f)
5/8-18 male
thread.
Retainer nut
with 1/8 npt(f)
5/8-18 male
thread.
Retainer nut
with 1/8 npt(f)
5/8-18 male
thread.
Retainer nut
with 1/8 npt(f)
5/8-18 male
thread with
swirl adapter
1/2 npt (m) 23
1/2 npt (m) 27
Parts
Page
29
27
23
27
23
309376L 3
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
• 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 (8.3 bar, 120 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 34.
• Be sure that all spray/dispensing equipment and accessories are rated to withstand the maxi- mum 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 180°F (82°C) or below -40°F (-40°C). Do not expose
Graco electrically heated hoses to temperatures above 400°F (222°C) or below -40°F (-40°C).
• 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.
4 309376L
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.
• 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 14 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 14, then remove the tip to clean it.
• NEVER wipe off build-up around the tip or air cap until pressure is fully relieved.
309376L 5
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 Heated Automatic Dispense Valve is grounded 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.
• 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.
6 309376L
Installation
TI1377A
Fluid
Inlet
Water
Circulation
Ports
Install the automatic applicator as follows:
• mount the automatic dispense valve
• attach dispense tip or nozzle
• connect the air lines
• connect material hose
• if heated, connect the electrical cable
• if temperature conditioned, connect the water
circulation
• make sure the automatic dispense valve is
grounded
Mount the Automatic Dispense Valve
Mount the automatic dispense valve to the mounting
bracket on a stationary support or robotic arm (Fig. 1),
using two M6x1.0 socket head screws and two flat
washers. If your application is heated, be sure to
position the insulation block between the dispense valve
and the mounting bracket, (Fig. 2). Refer to the
dimensions on page 32.
Mounting
Holes
Ambient or temperature conditioned model shown
Fig. 1 ______________________________________
309376L 7
Installation
Open and Close
ports are on this
side.
Fluid Inlet
Connect Air Lines to Dispense Valve
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.
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.
Be sure to connect the appropriate air lines to the
appropriate ports (Fig. 2), and securely connect air lines
to dispense valve air ports. See page 32.
Connect Material Hose to Dispense Valve
Securely connect the material hose to the dispense
valve material inlet port. See Fig. 2.
Connect Electrical Cable to Electrically
Heated Dispense Valves
Connect electrical cable plug from your Therm-O-Flow,
Therm-O-Flow Plus, or PrecisionFlo hose or control.
A six-pin round connector is used on 120 volt valves and
an eight-pin square connector is used on 240 volt
valves.
Temperature
insulation
spacer
240 volt heated model shown
Fig. 2 ______________________________________________________________________________________
8 309376L
Installation
67
5412
3
TI0305
240 Volt models
Grounding
WARNING
FIRE, EXPLOSION, AND ELECTRIC
SHOCK 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.
• A qualified electrician must complete all
grounding and wiring connections and
check the resistance.
Ground lead coming
from contact 8 is
fastened to the
valve body
• Refer to your local code for the requirements for a
"true earth ground" in your area.
• Also read and follow the warnings on page 6.
Electrically Heated Models.
Ground the automatic dispense valve:
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 valve body.
Heater
cartridge
Fig. 3 ______________________________________
120 Volt models
RTD
sensor
Fig. 4_______________________________________
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. 4), inside control panel receptacle,
is connected to true earth ground.
See page 35 for schematics.
Snuff-Back
Snuff-back is created when the needle is pulled back
through a restrictive ring before it closes against the
carbide seat.
For maximum snuff-back, leave the ring in place.
For maximum flow with less snuff-back, remove the ring.
For additional snuff-back, use a quick exhaust valve
(104661) on the "open" air port.
Nozzle selection and gun movement also effect fluid
cut-off characteristics.
309376L 9
Installation
Connecting the Electrical Cable from a
Therm-O-Flow Plus Heated Hose
1. Wrap the hose cable around the hose one time.
Connect the electrical cable from the hose to the
valve cable; lock the metal clip on the top of the
connector. See Fig. 5.
2. Place the flat side of the cable connection against
the hose, making sure the metal clip faces away
from the hose. This will prevent damage to the hose
from the clip rubbing against it. See Fig. 6.
3. Secure the cable connector to the hose with heavy
tape or Velcro straps. For installations where the
dispense valve is moving, it is recommended that
the connector be wrapped with the Graco accessory
Velcro wrap (198422) and 2 Velcro straps (198442)
as shown in Fig. 7.
Fig. 5 ______________________________________
Fig. 6 ______________________________________
Fig. 7 ______________________________________
10 309376L
Maintenance
The following tables list recommended maintenance procedures and frequencies. The maintenance is divided
between mechanical and electrical tasks. A typical application is a valve mounted on a robot dispensing a
moderately abrasive sealant.
Mechanical
Task
Inspect for leaks
Check hoses for wear*
Check/tighten fluid connections*
Check/tighten air connections*
Lube packings
Rebuild dispense valve
Replace valve
* Assumes movement from automation.
Electrical
Task
Check cables for wear
Verify cable connections
Verify resistance of electric heaters
Verify resistance of RTD sensors
Daily
Daily
Weekly
Weekly
Monthly or
30,000 cycles
Monthly
3-6 months or
125,000 cycles
6 Months
6-12 months or
250,000 cycles
18-24 months or
500,000 cycles
36-48 months or
1,000,000 cycles
6-8 years or
2,000,000 cycles
12 Months
Packing Lubrication
This valve has a primary seal, a pressurized grease
area, and a secondary seal. The key to long seal life is
that the secondary seal only has to seal grease.
When dispensing filled materials this grease should be
refreshed once a month.
309376L 11
1. Remove one of the zerk grease fittings (23).
2. Using a grease gun, pump a high quality grease like
#115982 (high temperature moisture free) into the
remaining zerk fitting until fresh grease comes out
the other side.
3. Replace the grease fittings and give the valve one
more shot of grease to pressurize the cavity.
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