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Instructions – Parts List
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001
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
Table of Contents
Symbols
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation and Maintenance
5
. . . . . . . . . . . . . . . . . . . .
Pressure Relief Procedure
5
. . . . . . . . . . . . . . . . . . .
Operating the Metering Valve
5
. . . . . . . . . . . . . . . . .
Maintenance
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting the Metering Valve
6
. . . . . . . . . . .
Fluid Needle and Seat Assembly Service
7
. . . . . .
Closer Service
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Pressure Sensor
11
. . . . . . . . . . . . . .
Wiring Diagram
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Part No. 233678, Metering Valve Assembly
15
. . . .
Part No. 233679, Metering Valve Assembly
16
. . . .
Part No. 233590, Closer Assembly
17
. . . . . . . . . . .
Technical Data
19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Publications
19
. . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty
20
. . . . . . . . . . . . . . . . . . . . .
Graco Information
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
309384
rev.
C
TI1394A
Important Safety Instructions
Read all warnings and instructions in
this manual. Save these instructions.
Summary of Contents for PrecisionFlo 233678
Page 12: ...12 309384 Wiring Diagram Fig 8 05480 ...
Page 13: ...309384 13 Notes ...
Page 18: ...18 309384 Notes ...