EasyManua.ls Logo

Graco 482 Series - User Manual

Graco 482 Series
24 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
310543
Rev. A
First choice when
quality counts.
INSTRUCTIONS-PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP IT FOR REFERENCE.
MODEL 482
Automatic Metering Valves
3200 psi (220 bar, 22.0 MPa) Maximum Fluid Working Pressure
Refer to page 2 for a summary of the List of Models
Part No. C02021
Model 482–B; 7/8–18 nef externally threaded fluid inlet
boss and 7/16–20 unf mounting hole
Part No. C02022
Model 482–C; 7/16–20 unf mounting hole only
U.S. Patent Nos. 3,160,331 and 3,132,775
Part No. C02025
Model 482–E; 7/16–20 unf mounting hole and 1/4
material outlet
Part No. C02026
Model 482–HA; Model 482–C with trigger-actuated
pistol grip handle
Part No. C02027
Model 482–MS; Model 482–B with seal fluid reservoir
and 7/16–20 mounting bolt for moisture sensitive fluid
Part No. C02078
Model 482–DA with double acting air cylinder and 1/4
npt(f) outlet
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
www.graco.com
COPYRIGHT 2000, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

Table of Contents

Questions and Answers

  • D
    Danny CarrollAug 11, 2025
    What to do if the Graco Control Unit metering valve fails to dispense when the actuator is tripped?
    • A
      Anthony GrossAug 11, 2025
      If the Graco Control Unit metering valve fails to dispense when the actuator is tripped, first, ensure that your operating air pressure is sufficient. Increase the air pressure to 80 psi (0.55 MPa, 5.5 bar) and clear the air line if it's blocked. Also, check for any kinks or blockages in the fluid or air hose and clear or straighten the hose as needed. Finally, check the fluid supply line for any interruptions, clear it, and refill the supply if necessary, and turn on the supply pump.
  • E
    Emily PetersAug 27, 2025
    Why does my Graco 482 Control Unit metering valve fail to dispense?
    • K
      Katrina BellAug 27, 2025
      The metering valve of your Graco Control Unit might fail to dispense due to several reasons: the nozzle may be blocked with cured or foreign fluid; the fluid or air hose could be kinked or blocked, interrupting the fluid supply; the operating air pressure might be insufficient; or the internal parts may be worn or damaged. Insufficient operating air pressure can cause the valve to fail. The air pressure should be increased to 80 psi (0.55 MPa, 5.5 bar).
  • A
    Angel LunaSep 10, 2025
    How to fix Graco 482 Control Unit when metering valve fails to dispense?
    • M
      Mary MorrisSep 12, 2025
      If the Graco Control Unit metering valve fails to dispense, start by checking the nozzle for cured or foreign fluid and clean or clear the nozzle. Then, observe the action of the needle valve and spring through the vent hole in the valve body while cycling the valve. Adjust the piston stroke. Disassemble and clean the needle valve, if necessary. If the issue persists, it may be due to worn or damaged parts, in which case you should disassemble and rebuild the valve, lubricating o-rings on installation.
  • Y
    youngchadDec 3, 2025
    What to do if the Graco 482 Control Unit metering valve doesn't dispense when tripped?

    Graco 482 Series Specifications

    General IconGeneral
    BrandGraco
    Model482 Series
    CategoryControl Unit
    LanguageEnglish

    Related product manuals