Table of Contents
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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP IT FOR REFERENCE.
INSTRUCTIONS
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
GRACO INC. P.O. BOX 1441
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
MINNEAPOLIS, MN 55440–1441
www.graco.com
ECOPYRIGHT 2000, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
310543
First choice when
quality counts.t
Rev. A
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Table of Contents
Related Manuals for Graco 482 Series
Summary of Contents for Graco 482 Series
- Page 1 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 ECOPYRIGHT 2000, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
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Page 2: Table Of Contents
........AMV Disassembly (C02021, C02022, Graco Standard Warranty ..... -
Page 3: Warnings
D Route the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 82° C (180° F) or below -40° C (-40° F). D Do not use the hoses to pull the equipment. - Page 4 WARNING INJECTION HAZARD Spray from the metering valve, hose leaks, or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause serious injury. D Fluid injected into the skin might look like just a cut, but it is a serious injury.
- Page 5 WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. D Ground the equipment and the object being sprayed. See Ground the System on page 6. D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being dispensed.
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Page 6: Setup
The grounding of every part of your system is valve can be supplied by any standard Graco pump. essential. Read the warning section, FIRE AND EXPLOSION HAZARD , on 1. Inspect the metering valve for shipping damage. If page 5 and follow the grounding damage is found, notify the carrier immediately. -
Page 7: Operation
Operation Pressure Relief Procedure An air operated spool valve directs pressurized fluid to either side of a floating piston. Shot size is easily and quickly changed by simply lengthening or shortening WARNING the piston stroke (see Adjusting the Valve). INJECTION HAZARD At its maximum of 4 cc of moderate viscosity fluid, the The system pressure must be manually valve will dispense up to 15 shots per minute. -
Page 8: Troubleshooting
Troubleshooting 1. Relieve the pressure. WARNING 2. Check all possible problems and solutions before To reduce the risk of serious injury whenever you disassembling pump. are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 7. Problem Cause Solution Metering valve fails to dispense... - Page 9 Notes 310543...
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Page 10: Service
Service AMV Disassembly (C02021, C02022, and 5. Turn the nut (11) counterclockwise to unlcok and remove the retainer (19) and disassemble the C02025) retainer as follows: This procedure describes how to disassemble the a. Remove the snap ring (16*) with a snap ring automatic metering valve. -
Page 11: Amv Reassembly (C02021, C02022, C02024, And C02025)
Service AMV Reassembly (C02021, C02022, and a. Attach the needle chuck to the needle valve (7) and insert the needle valve through the C02025) fluid piston, threaded end first. This procedure describes how to reassemble the b. Install the quad ring (4*) on the air piston (13) automatic metering valve. -
Page 12: Amv Disassembly (C02026)
Service AMV Disassembly (C02026) 2. Remove the socket head screw (7) and the second screw (not listed) that secures the meter valve (1) This procedure describes how to disassemble the to the mounting block (13). Remove the meter pistol grip metering valve. Refer to Parts information valve. -
Page 13: Amv Reassembly (C02026)
Service AMV Reassembly (C02026) Gun Handle Reassembly Procedure To reassemble the gun handle, perform the following procedure: This procedure describes how to reassemble the pistol grip metering valve. Refer to Parts information on 1. Install the spring (10) and roll pin (12) in the gun page 16 performing the procedure to reassemble the handle (8). -
Page 14: Amv Disassembly (C02027)
Service AMV Disassembly (C02027) AMV Reassembly (C02027) This procedure describes how to reassemble the This procedure describes how to disassemble the automatic metering valve. Refer to Parts information automatic metering valve. Refer to Parts information on page 17 while performing the procedure to re- on page 17 while performing the procedure to disas- assemble the AMV. -
Page 15: Parts
Parts Part No. C02021, C02022, and C02025 Model 482–C; 7/16–20 unf mounting hole only Ref. Ref. Part No. Description Qty. Part No. Description Qty. C02041 CAP, CYLINDER C02045 PISTON, AIR C02032 NUT, LOCK, NYLON #5–40 C20846 BACK-UP RING 114027 WASHER, FLAT, #6 C20314 O-RING, VITON, 5194-112-V 111095... -
Page 16: Part No. C02026
Parts Part No. C02026 Model 482–HA; Model 482–C with trigger-actuated pistol grip handle Ref. Ref. Part No. Description Qty. Part No. Description Qty. C26312 TRIGGER 1 C02022 METER VALVE C04083 SPRING 1 C20850 ELBOW C20065 ROLL PIN C19955 SOCKET HEAD SCREW C20064 ROLL PIN 19233... -
Page 17: Part No. C02027
Parts Part No. C02027 AMV for use with moisture sensitive This AMV is designed to be used with moisture materials. sensitive materials. Ref. 2.75” approx. Part No. Description Qty. fill level C02021 AUTOMATIC METERING VALVE C04104 CARTRIDGE; 2.5 oz C26069 END CAP C20477 HEX NIPPLE;... -
Page 18: Part No. C02078
Parts Part No. C02028 Model 482–DA; with double acting air cylinder and 1/4 npt(f) outlet Ref. Ref. Part No. Description Qty. Part No. Description Qty. C20404 RING, SNAP, 5216–50 C02079 BODY, VALVE, METER 168518 O–RING, VITON, 5192–6–V C02044 RETAINER OUTLET C20988 O–RING, VITON, 5194–8–V C02077... -
Page 19: Accessories
Accessories Use Only Genuine Graco Parts and Accessories Repair Kit C02023 Repair Kit C02028 Table 1 lists the parts that are supplied in the repair kit Table 2 lists the parts that are supplied in the repair kit for the pistol grip metering valve. -
Page 20: Fluid Nozzles
Accessories Use Only Genuine Graco Parts and Accessories Fluid Nozzles These nozzles fit all automatic metering valves covered in this manual. Nozzle Adapter Orifice Size Part No. Part No. 3/64 in. C17008; not required (1.2 mm) 1/8 npt(m) 3/32 x 3/8 in. -
Page 21: Technical Data
Technical Data Models C02021, C02022, C02025, C02026 Category Data Maximum fluid working pressure All other metering valves: 3200 psi (22.0 MPa, 220 bar) C02026: 2500 psi (17.2 MPa, 172.4 bar) Minimum fluid working pressure 50 psi (0.34 MPa, 3.4 bar) Minimum air supply pressure 80 psi (0.55 MPa, 5.5 bar) Viscosity range... - Page 22 Technical Data Model, C02078 Category Data Maximum fluid working pressure All other metering valves: 3200 psi (22.0 MPa, 220 bar) Minimum fluid working pressure 50 psi (0.34 MPa, 3.4 bar) Minimum air supply pressure 80 psi (0.55 MPa, 5.5 bar) Viscosity range 3000 to 1 million centipoise Shot size range...
- Page 23 Dimensions 5.50 Max. 5.19 Min. (139.7 mm Max. 131.8 mm Min.) 6.80 MAX 6.49 MIN 7/16–20 x 5/8 Deep 3.37 Mounting Hole Air Supply 1.00 Inlet 1/8 Minimum 80 P.S.I. 1.50 7/8–18 UNS–2A Thread for Mounting Material Inlet 1/8 NPT 4.30 Material Outlet 1/8 NPT...
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Page 24: Graco Standard Warranty
Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub- stitution of non–Graco component parts.