Graco PrecisionFlo 233678 Instructions-Parts List Manual
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Graco PrecisionFlo 233678 Instructions-Parts List Manual

Graco PrecisionFlo 233678 Instructions-Parts List Manual

Precisionflo metering valve for pvc application / precisionflo metering valve for hemflange application
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Instructions - Parts List
PrecisionFlo t
Metering Valve Upgrade
3500 psi (24 MPa, 240 bar) Maximum Working Fluid Pressure
For use when dispensing fluids that meet at least
one of the following conditions for non-flammability:
D The fluid has a flash point above 140_F (60_C)
and a maximum organic solvent concentration of
20%, by weight, per ASTM Standard D93.
D The fluid does not sustain burning when tested per
ASTM Standard D4206 Sustained Burn Test.
Part No. 233678
PrecisionFlo Metering Valve for PVC application
Part No. 233679
PrecisionFlo Metering Valve for HemFlange application

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Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001
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309384 rev.C
Important Safety Instructions
Read all warnings and instructions in
this manual. Save these instructions.
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TI1394A

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Summary of Contents for Graco PrecisionFlo 233678

  • Page 1: Table Of Contents

    ......GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Symbols

    Symbols Warning Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions. or destruction of equipment if you do not follow the instructions.
  • Page 3 D This equipment is for professional use only. D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor. D Only use the PrecisionFlo Metering Valve with the PrecisionFlo Control.

  • Page 4: Installation

    D Have the system binder (a collection of manuals FF = 4 x 1/4–20 in. and diagrams in a three-ring binder, supplied by Graco) available during installation. D Reference numbers and letters in parentheses in the text refer to the numbers and letters in the illustrations.

  • Page 5: Operation And Maintenance

    Operation and Maintenance Pressure Relief Procedure Operating the Metering Valve The Metering Valve is operated through the PrecisionFlo Control. Follow the PrecisionFlo Control WARNING instructions to operate the Metering Valve. SKIN INJECTION HAZARD The system pressure must be manually WARNING relieved to prevent the system from starting or dispensing accidentally.

  • Page 6: Service

    7. condition if the motor end plates are removed. c. Check that the PrecisionFlo Control on/off Contact your Graco distributor for motor service. delay is set properly. See the chart for the applicable PrecisionFlo Control Assembly manual.

  • Page 7: Fluid Needle And Seat Assembly Service

    (37) by unscrewing the two set screws (35). Part No. 233678 Shown Lubricate all o–rings and seals with lithium–based grease prior to installation. Do not service the motor. Contact a Graco distributor for service. Torque to 32 in-lb (3.6 NSm). TI1393A Fig. 3 309384...
  • Page 8 Service 11. Remove the screws (24), and separate the fluid 27. Replace rubber boot (34) over the connector (37) section from the fluid head mount (21). and secure end to the motor face plate. Slide boot back to expose set screw holes. 12.

  • Page 9: Closer Service

    Service Closer Service 9. Disconnect the air line from the closer air inlet (G). 10. Press down on the cylinder body cover to prevent WARNING the parts from springing apart, and remove the screws (107) from the closer cover. See Fig.6. SKIN INJECTION HAZARD To reduce the risk of a serious injury, 11.
  • Page 10 Service Closer Service (continued) 20. Install the rubber bumpers (101) on the end of the rod closer (102) and the cylinder cap (111). 13. Remove the spring (109) from the cylinder body (108). See Fig. 6. 21. Connect a compressed air supply to the closer air inlet (G).

  • Page 11: Replacing The Pressure Sensor

    Service Replacing the Pressure Sensor 10. Connect the pressure sensor cable (K). 11. Mount the Metering Valve. WARNING 12. Connect the fluid lines to the metering valve fluid SKIN INJECTION HAZARD inlet (A) and outlet (B). See Fig. 7. To reduce the risk of a serious injury, including an injection injury, follow the 13.

  • Page 12: Wiring Diagram

    Wiring Diagram 05480 Fig. 8 309384...
  • Page 13 Notes 309384...

  • Page 14: Parts

    Parts Lubricate all o–rings and seals with lithium–based grease prior to installation. Do not service the motor. Contact a Graco distributor for service. Torque to 32 in-lb (3.6 NSm). 309384...

  • Page 15: Part No. 233678, Metering Valve Assembly

    RETAINER, pressure sensor 17*{ C20145 O–RING; buna–n; size –014 (10.4 MPa, 104 bar) pressure sensor, which is 102410 SCREW, cap; sst; #6–32 x 3/8” available in Kit 918487. Contact your Graco distri- 290182 TAG, warning butor to order the kit. 309384...

  • Page 16: Part No. 233679, Metering Valve Assembly

    RETAINER, pressure sensor 17*{ C20145 O–RING; buna–n; size –014 (10.4 MPa, 104 bar) pressure sensor, which is 102410 SCREW, cap; sst; #6–32 x 3/8” available in Kit 918487. Contact your Graco distri- 290182 TAG, warning butor to order the kit. 309384...

  • Page 17: Part No. 233590 Closer Assembly

    Parts Use Only Genuine Graco Parts and Accessories TI1392A Part No. 233590 Closer Assembly Includes items 101–115 Ref. Ref. Part No. Description Qty. Part No. Description Qty. 112987 BUMPER, rubber 15E015 VALVE ROD 111092 SPRING, PrecisionFlo closer 112106 O-RING, buna-n, size –042 801050 O–RING;...
  • Page 18 Notes 309384...

  • Page 19: Technical Data

    Fluid Viscosity: 10,000 cps to 1,000,000 cps* Maximum Fluid Temperature: 176_F (80_C) * Flow rate is dependent upon material viscosity, tip size and supply pressure. Related Publications Product Form# PrecisionFlo Module 308540 PrecisionFlo Control Assembly 310531 PrecisionFlot and PrecisionFlot Plus are trademarks of Graco, Inc. 309384...

  • Page 20: Graco Standard Warranty

    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 manual is also suitable for:

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