Graco 312396C User Manual
Instructions - Parts List
Heated Fluid
Regulator
For use in a high pressure system to control and regulate fluid pressure to one spray gun,
dispense valve, or atomizing head.
Part No. 289208, Series A
3000 psi (21 MPa, 210 bar) Maximum Working Pressure
200-3000 psi (1.4-21 MPa, 14-210 bar) Regulated Fluid Pressure Range
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
312396C
TI10548a
Warnings
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before Installing the Fluid Regulator . . . . . . . . . . 4
Installing the Fluid Regulator . . . . . . . . . . . . . . . 4
Connect Electrical Cable . . . . . . . . . . . . . . . . . . . 4
Ground the System . . . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 6
Adjusting the Regulator . . . . . . . . . . . . . . . . . . . . 6
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inspection Frequency . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Install New Heater Cartridge(s), RTD Sensor, or
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 12
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 12
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 symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
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 com-
ponent. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about
your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• 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.
ELECTRIC SHOCK HAZARD
Improper grounding, setup, or usage of the system can cause electric shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before servicing
equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and
regulations.
2 312396C
Warnings
WARNING
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.
• Read MSDS’s to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear impervious gloves when spraying or cleaning equipment.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns,
do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating area
of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes,
burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
312396C 3
Installation
Installation
Fluid pressure regulators are used for accurate, positive
control of the fluid pressure to spray guns, dispense
valves, or atomizing heads.
Regulators installed at circulating line take-offs or
pumps are used to reduce main line pressure and maintain the desired fluid pressure to the spray gun, dispense valve, or atomizing head.
Before Installing the Fluid Regulator
1. Determine placement of the fluid regulator in system.
2. Install a ball valve for inlet and outlet of the regulator.
3. Install temporary plumbing between the ball valves.
4. Thoroughly flush the system to remove metal chips
and other contaminants and to check for leaks.
Connect Electrical Cable
1. Wrap hose cable around hose one time. Connect
electrical cable from hose or accessory cable to regulator cable; engage metal clip on top of connector.
F
IG. 1: Connect Electrical Cable, Step 1
2. Place flat side of cable connection against hose,
making sure metal clip faces away from hose. This
will prevent damage to hose from clip rubbing
against it.
Installing the Fluid Regulator
1. Remove the temporary plumbing and install one
regulator for each dispense valve. A mounting plate
(28) is provided for mounting the regulator from the
side.
2. Put sealer on threaded connections, except on
swivel unions as it interferes with the swivel action.
3. See F
4. Flush and test the entire system.
IG. 4. Connect the fluid supply line to the 3/8
npt(f) inlet (B) of the fluid regulator (A). Connect the
fluid line between the dispense valve (D) and the
regulator's 3/8 npt(f) outlet (C). Make sure that the
direction of fluid flow agrees with the IN and OUT
markings on the regulator body.
F
IG. 2: Connect Electrical Cable, Step 2
3. Fasten Velcro insulation wrap (198422) snugly
around hose. Secure wrap with two Velcro straps
(198442) on ends of wrap.
F
IG. 3: Connect Electrical Cable, Step 3
4 312396C
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