Table Of Contents; Manual Conventions - Graco P20-VM Instructions Manual

Contents
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . 2
List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Back Pressure Regulators . . . . . . . . . . . . . . . . . 5
Fluid Pressure Regulators . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flush Before First Use . . . . . . . . . . . . . . . . . . . 10
Pressure Relief Procedure . . . . . . . . . . . . . . . . 10
Adjusting the Regulator . . . . . . . . . . . . . . . . . . . 10
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cleaning and Repair . . . . . . . . . . . . . . . . . . . . . 12

Manual Conventions

Warning
WARNING
A warning alerts you to the possibility of serious injury
or death if you do not follow the instructions.
Symbols, such as fire and explosion (shown above),
alert you to a specific hazard and direct you to read
the indicated hazard warnings (pages 4-4) for detailed
information.
Caution
CAUTION
A caution alerts you to the possibility of damage to or
destruction of equipment if you do not follow the
instructions.
2
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mechanical Fluid Pressure Regulators
Part Numbers 233759 and 234267 . . . . . . . 13
Mechanical Back Pressure Regulators
Part Numbers 233812 and 234258 . . . . . . . 14
Mechanical Fluid Pressure Regulators
Part Numbers 233757, 233774, 234263,
234273 and 17L324 . . . . . . . . . . . . . . . . . . 15
Mechanical Back Pressure Regulators
Part Numbers 233758, 233811, 233950,
234255, 234261, and 234262 . . . . . . . . . . . 16
Pneumatic Fluid Pressure Regulators
Part Numbers 233773, 233809, 234272, and
234256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pneumatic Back Pressure Regulators
Part Numbers 233810 and 234257 . . . . . . . 18
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Accessory Gauges . . . . . . . . . . . . . . . . . . . . . . . . . 20
Flow Rate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . 21
Graco Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
309474U