Graco 25V482 User manual

3A7280A

Instructions

Air Control Solenoid Valve

for Fluid Defender™

For regulating air powered equipment connected to the Fluid Defender. For professional

use only.

Not approved for use in explosive atmospheres or hazardous (classified) locations.

Models:

25V482 - Kit, Solenoid, Air, Pump

145 psi (1.0 MPa, 10 bar) Maximum Working Pressure

Related Manuals

Important Safety Instructions

Read all warnings and instructions in this

manual before using the equipment.

Save these instructions.

Manual in

English Description

130641 Pulse® Fluid Management, Register Your

Devices quick guide

3A9335 Fluid Defender

3A7279 Fluid Defender Level Sensor

Warnings

2 3A7280A

Warnings

The following warnings are for the 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.

When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.

Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this

manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be

aware that flammable fumes can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well-ventilated area.

• Eliminate all ignition sources, such as cigarettes and portable electric lamps.

• Ground all equipment in the work area.

• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.

• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.

• Use only grounded hoses.

•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment

until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical

Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For

complete information about your material, request Safety Data Sheets (SDSs) from distributor or

retailer.

• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine

manufacturer’s replacement parts only.

• Do not alter or modify equipment. Alterations or modifications may void agency approvals and

create safety hazards.

• Make sure all equipment is rated and approved for the environment in which you are using it.

• Use equipment only for its intended purpose. Call your distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including

eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes but is not

limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

Typical Installation

3A7280A 3

Typical Installation

There are multiple system configurations possible. The typical installations shown in FIG. 1 - FIG. 3 are the three

targeted applications for the Fluid Defender. Each typical installation shown is configurable as a single separate

channel. Follow all local codes and regulations for tank installations. Consult your local Graco representative or

distributor for system design assistance.

Waste Oil High Level Shut Off

FIG. 1

Typical Installation

4 3A7280A

Fresh Oil Low Level

FIG. 2

Typical Installation

3A7280A 5

Remote Bulk Fill Stop

FIG. 3

Overview

6 3A7280A

Overview

Air Control Solenoid Valves

Air control solenoid valves are a Fluid Defender system

component used to control air operated pumps and air

actuated control valves. These devices are used to stop

fluid flow into the monitored tank. They are an optional

system component, but required for fluid flow

interruption.

The air control solenoid valves are continuously

powered during normal operation with the air control

solenoid valve being open to provide air pressure to the

controlled equipment.

When the Fluid Defender detects an alarm condition in

the same channel as the air control solenoid valve, the

solenoid is deactivated causing the connected

equipment to deactivate.

The Fluid Defender must be powered for the air control

solenoid valve to be open, allowing for normal

controlled equipment operation. Loss of power to the

Fluid Defender closes the air control solenoid valve and

bleeds downstream air pressure from the controlled

equipment.

Installation

3A7280A 7

Installation

Pressure Relief Procedure

1. Turn off the bleed-type master air valve located

upstream of all connected equipment.

2. Turn the Fluid Defender keyed power control off to

de-energize the connected air control solenoid

valves.

3. Follow the pressure relief procedure for all

connected equipment, such as pumps and

dispense valves from your component instruction

manuals.

Installation of Air Control

Solenoid Valves

1. Mount the air control solenoid valve, using the two

mounting holes, to a sturdy mounting surface.

NOTE: Mounting inline with hard plumbing is

acceptable.

2. Connect Port 1 to the air supply (FIG. 4).

3. Connect Port 2 to the downstream controlled

equipment. (FIG. 4).

Install the user supplied connected equipment

downstream of the air control solenoid valve

following manufacturer requirements.

4. Install the muffler into Port 3. Port 3 is an exhaust

port. Do not plug the port because when the air

control solenoid valve deactivates under alarm

conditions, the downstream air pressure vents

through Port 3 (FIG. 4).

COMPONENT RUPTURE HAZARD

The air actuated control valve, and all of the fill piping

and connections between the air actuated control

valve and the fluid delivery pump, must be designed

for use with pumped delivery, and be able to handle

the maximum pressure produced when the pump

continues to operate after the air actuated control

valve closes.

The maximum working pressure of the components

in the fill piping may vary. Over pressurization of any

component may cause them to rupture, resulting in

property damage and serious injury, such as skin

injection, or injury from splashing fluid.

To reduce the risk of injury and property damage

from component rupture:

• Be sure to know the maximum working pressure

of each component in the system

• Never exceed the maximum working pressure of

any component in the system

• Only connect fluid delivery pumps which are able

to be operated with a closed outlet

• Only connect fluid delivery pumps with a

maximum outlet pressure lower than the

maximum rated pressure of the system

The equipment connected to the air control solenoid

valves may stay pressurized until pressure is

relieved. To help prevent serious injury from

pressurized fluid, such as skin injection, splashing

fluid, and moving parts, follow the Pressure Relief

Procedure for the connected equipment when you

stop dispensing and before cleaning, checking, or

servicing the equipment.

FIG. 4

Installation

8 3A7280A

5. Attach all accessory wires to the Fluid Defender

control box following all local codes and

regulations.

Reference the Technical Specifications, page 13,

for information on maximum wire runs.

All accessory circuits are low voltage (less than 48

VDC).

Operation

3A7280A 9

Operation

Air control solenoid valves are operated automatically

by the Fluid Defender on a channel specific basis. The

air control solenoid valve is energized when the Fluid

Defender is in active monitoring mode. When the Fluid

Defender senses an alarm condition in a specific

channel, the air control solenoid is de-energized and

closes the air supply to the connected equipment.

Air Control Solenoid Valve Manual Override

Only use manual override for system setup, or when

instructed by Graco for troubleshooting. Always set the

mode of operation back to the normal operating

position.

NOTE:

Ensure that all air control solenoid valves are not in

the override mode. Air control solenoid valves in

override mode are unable to control downstream

equipment.

Develop on-site tank fill procedures to prevent

accidental overfills.

Test the alarms before any remote bulk fill is

performed.

Determine and verify that there is sufficient volume

available in the tank before transfer. Verify capacity

before filling any tank.

Test the complete installed system to verify correct

installation.

Follow maintenance requirements and perform

periodic system maintenance.

The blue manual override switch turns on the air to the

downstream connected equipment and allows the

equipment to function for troubleshooting and testing

purposes only.

To set the blue manual override switch:

1. Insert a small, flat screwdriver into the slot of the

blue manual override switch screw (FIG. 5).

2. Rotate the blue manual override switch screw

clockwise 1/4 turn.

3. After performing system testing or troubleshooting,

reset the blue manual override switch screw to the

normal operation position. Insert a small, flat

screwdriver in the slotted opening and turn the blue

manual override switch screw counterclockwise

back to the original position (FIG. 6).

NOTICE

Do not turn the blue manual override switch screw

more than a 1/4 turn. Overturning the screw could

cause it to break, rendering the unit inoperable.

FIG. 5: Override Position

FIG. 6: Normal Operation Position

Recycling and Disposal

10 3A7280A

Recycling and Disposal

End of Product Life

At the end of a product’s useful life, recycle it in a

responsible manner.

Troubleshooting

Follow the pressure relief instructions in your pump

manual, before checking or repairing the system.

See Fluid Defender manual, Related Manuals, page 1

for Troubleshooting information.

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