Graco 309474EN-K- Manuals

Page 2 - Contents; Manual Conventions; Warning

2 309474K Contents List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Back Pressure Regulators . . . . . . . . . . . . . . . . . 6 Fluid Pressure Regulators . . . . . . . . . . . . . . . . . 6 Instal...

Page 3 - List of Models

List of Models 309474K 3 List of Models Key to Model Designation Fluid Pressure Regulators Part No. Series Model Type Maximum Fluid Inlet Pressure Regulated Pressure Range 233757234263 BB P20-VMP20-VM npt Mechanical, fluid pressure 580 psi (4000 kPa, 40 bar) 15-290 psi (100-2000 kPa, 1-20 bar) 23375...

Page 6 - Introduction; Back Pressure Regulators

Introduction 6 309474K Introduction A fluid pressure regulator is used in air spray systems to ensure accurate, positive control of fluid pressure to an air spray gun or to a low pressure dispensing valve or atomizing head. A regulator installed at a circulating line take-off or pump reduces main li...

Page 8 - Installation

Installation 8 309474K Installation 1. Install one regulator for each spray gun. 2. Apply thread sealant to connections as necessary. 3. Make sure that the direction of fluid flow agrees with the flow direction markings on the regulator body. a. Install a fluid pressure regulator upstream of the gun...

Page 11 - Operation; Flush Before First Use; Adjusting the Regulator; Mechanical Regulator

Operation 309474K 11 Operation Flush Before First Use Your pressure regulator has been tested in the factory with an anti-corrosion liquid. Before using the regulator, thoroughly flush the system with a solvent to remove residue of this liquid as well as any contaminants that have been introduced du...

Page 12 - Troubleshooting

Troubleshooting 12 309474K Troubleshooting Relieve the pressure (page 11) before checking or repairing the equipment. To repair the regulator, refer to page 13. Problem Cause Solution Drop in fluid outlet pressure. Ruptured diaphragm (15). Replace diaphragm. Air escaping (pneumatic regulators only)....

Page 13 - Maintenance; Flushing

Maintenance 309474K 13 Maintenance Flushing Flush before changing colors, at the end of the day, before storing, and before repairing the equipment. Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts of your system. Check with your fluid manufacturer or su...

Page 14 - Parts

Parts 14 309474K Parts Mechanical Fluid Pressure RegulatorsPart Nos. 233759 and 234267 TI1753A 28 25 26 24 22 21 20 19 18 10 12 13 11 17 15 14 2 3 4 1 10 5 6748 9 23 16 27 Torque to 6 N•m (53 in-lb). Torque to 2 N•m (18 in-lb). Fill internal cavity with grease. Used only on non-npt model 233759. Tor...

Page 21 - Accessory Gauges

Accessory Gauges 309474K 21 Accessory Gauges Flow Rate Data Maximum fluid flow with 10 weight oil, regulator wide open and no downstream restrictions. Part No. Gauge 233774 118338 243273 118338 233757 118338 234262 118338 233759 118339 234267 118339 234773 118338 234272 118338 233809 118338 234273 1...

Page 22 - Mounting Dimensions

Mounting Dimensions 22 309474K Mounting Dimensions Part No. Thread Dimension A 233757234263 M5 24 mm (0.95 in.) 233758234262 M5 24 mm (0.95 in.) 233759234267 M5 24 mm (0.95 in.) 233773234272 M5 24 mm (0.95 in.) 233774234273 M5 24 mm (0.95 in.) 233809234256 M5 24 mm (0.95 in.) 233810234257 M5 24 mm (...

Page 24 - Graco Warranty; Graco Information

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. This manual contains English. MM 309474 Graco Headquarters: Minneapolis International Offices: Bel...