Graco EnDure Manuale utente

309376L

Instructions–Parts List

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.

TI1377A

06540A

2309376L

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

309376L 3

Models

Basic

Valve

Part No.

Complete

Valve

Part No.

Description

(Replaces ...)

Maximum

Fluid

Temperature

Rating C (F)

Heater Voltage

Pin Connector Wattage

Valve Outlet

Connection

Parts

Page

244535 244910 Valve, ambient or water

conditioned. Replaces

C27340 hard seat and

918512 soft seat snuff-back,

if application is under 95 C

(200 F).

95 C (200 F) Nonpowered

ambient or water

circulation for

temperature

conditioning

05/8–18 male

thread.

Retainer nut

with 1/8 npt(f)

244961 Valve, 120 Volt E-Heat

Replaces valve 194485.

Any heated PrecisionFlo

before XL (July 2001) if

application is under 95 C

(200 F).

95 C (200 F) 120 VAC

6 Pin round

150 5/8-18 male

thread.

Retainer nut

with 1/8 npt(f)

244962 Valve, 230 Volt E-Heat

Replaces 243694 hard seat

and 243696 soft seat snuff-

back valves. Any Therm-O-

Flow Plus (after July 2000)

if application is under 95 C

(200 F).

95 C (200 F) 230 VAC

8 Pin square

200 5/8-18 male

thread.

Retainer nut

with 1/8 npt(f)

244907 244908 Valve, 120 Volt E-Heat

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).

204 C (400 F) 120 VAC

6 Pin round

150 5/8-18 male

thread.

Retainer nut

with 1/8 npt(f)

244909 Valve, 230 Volt E-Heat

Replaces 243694 hard seat

and 243696 soft seat snuff-

back valves. Any Therm-O-

Flow Plus (after July 2000) if

application is 95 C (200 F)

to 204 C (400 F).

204 C (400 F) 230 VAC

8 Pin square

200 5/8-18 male

thread.

Retainer nut

with 1/8 npt(f)

297261 Complete Valve, 240 Volt

E– Heat; Swirl Equipped

204 C (400 F) 240 VAC

8 Pin square

200 5/8-18 male

thread with

swirl adapter

244937 244951 Valve, 230 Volt E-Heat

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).

204 C (400 F) 230 VAC

8 Pin square

150 1/2 npt (m) 23

245184 Valve, 120 Volt E-Heat

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).

204 C (400 F) 120 VAC

6 Pin round

200 1/2 npt (m) 27

4309376L

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

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

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, 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.

309376L 5

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.

6309376L

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.

309376L 7

Installation

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

Ambient or temperature conditioned model shown

Fig. 1 ______________________________________

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.

TI1377A

Fluid

Inlet

Water

Circulation

Ports

Mounting

Holes

8309376L

Installation

Connect Air Lines to 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.

Fig. 2 ______________________________________________________________________________________

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.

Open and Close

ports are on this

side.

Fluid Inlet

Temperature

insulation

spacer

240 volt heated model shown

309376L 9

Installation

Grounding

Electrically Heated Models.

Ground the automatic dispense valve:

1. Connect the connector from a heated hose to the

receptacle on the dispense valve.

Fig. 3 ______________________________________

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.

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.

• 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.

TI0305

240 Volt models

Ground lead

coming from pin

E is fastened to

the valve body.

Heater

cartridge RTD

sensor

Ground lead coming

from contact 8 is

fastened to the

valve body

120 Volt models

10 309376L

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 ______________________________________

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