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All written and visual data contained in this document reflects the latest product information available at the time of publication. 

Graco reserves the right to make changes at any time without notice.

Original instructions. This manual contains English. MM 3A7681

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

Copyright 2020, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

www.graco.com

Revision A, 

January 2021

 

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in 
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty 
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by 
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with 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 substitution of 
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with 
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or 
maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of 
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned 
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will 
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy 
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or 
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT 
MANUFACTURED BY GRACO
. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to 
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these 
warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or 
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the 
negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, 
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la 
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite 
de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information

For the latest information about Graco products, visit 

www.graco.com

.

For patent information, see 

www.graco.com/patents

.

TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211, Fax: 612-378-3505

Summary of Contents for 25R490

Page 1: ...fluid pressure and flow in circulation systems For professional use only See page 2 for model information including maximum working pressure and approvals Important Safety Instructions Read all warnin...

Page 2: ...l in English Description 3A4030 Intelligent Paint Kitchen 3A7709 Pneumatic Pump Control Module Part Description Flow Range Regulated Fluid Pressure Max Fluid Inlet Pressure Max Air Working Pressure Ap...

Page 3: ...k area See Grounding instructions 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...

Page 4: ...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 c...

Page 5: ...gs on the BPR housing 3 Install an accessory gauge if used in the 1 4 inch gauge port Install plugs in the unused inlets and outlets 4 If more than one spray station is used install the BPR A in the F...

Page 6: ...d Return Line E Fluid Regulator F Air Assisted Airless Spray Gun G Air Line H Air Regulator Pilot Air Air Filter not shown J Bleed Type Shut Off Valve Air K Shut Off Valve Fluid L Drain Valve not show...

Page 7: ...n the tip guard retaining nut or the hose end coupling to relieve pressure gradually b Loosen the nut or the coupling completely c Clear the obstruction in the hose or tip Adjusting the BPR The BPR co...

Page 8: ...and lubrication of the BPR are necessary to keep the BPR working properly 1 Follow the Pressure Relief Procedure on page 7 2 Remove the BPR from the system 3 Disassemble the BPR referring to the part...

Page 9: ...low Medium Pressure BPR Pneumatic 25R490 shown 3 1 4 4 7 6 10 1 2 12 8 1 5 9 13 4 14 1 11 1 6 1 1 7 5 6 Apply NLGI Grade 2 grease Chevron SRI Torque to 175 200 in lbs 20 23 N m Apply metal assembly pa...

Page 10: ...25T477 PISTON AIR ACTUATOR REGULATOR BP 20 1 1 19B730 25T478 PISTON AIR ACTUATOR REGULATOR BP 10 1 1 7 189817 GASKET 1 8 111796 SEAL U CUP 1 9 171885 WASHER 1 10 166985 PACKING O RING 1 11 19B484 25R...

Page 11: ...ue to 60 70 ft lbs 81 95 N m 5 5 6 Ref Part Description Qty 1 19C099 CYLINDER VALVE 1 2 19Y873 HOUSING BPR MEDIUM PRESS 1 3 238932 PISTON VALVE 1 4 238933 SEAT VALVE 1 5 113751 RING RETAINING INTERNAL...

Page 12: ...auges Part Number Inlet Maximum WPR Wetted Parts Case Description Case Dial Diameter in mm Mount Style psi bar MPa 105770 1 4 in npt m 1000 69 6 9 Brass SST liquid filled 2 5 64 Bottom 17L706 1 4 in n...

Page 13: ...77 25R490 25R491 Air Operated Type Mechanical Part Description A B 25T478 Air Operated Type 4 84 in 123 mm 2 38 in 60 mm 25T477 4 84 in 123 mm 2 38 in 60 mm 25R490 4 84 in 123 mm 2 38 in 60 mm 25R491...

Page 14: ...50 3000 psi 17 207 bar 25R491 mechanical Flow range 0 5 gpm 0 19 Ipm Maximum fluid temperature 122 F 50 C Maximum recommended viscosity 200 250 cP depending on flow rate Inlet Outlet Sizes Air inlet s...

Page 15: ...Notes 3A7681A 15 Notes...

Page 16: ...n material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRA...

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