Graco P20-VM Instructions Manual

to a spray gun, low pressure dispensing valve, or atomizing head. For professional use only. Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. Model 233757 Shown II 2 G

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 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 Manual Conventions Warning Caution 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 A caution alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions.

309474U 3 List of Models  17L324 is designed for water-based systems. Key to Model Designation Fluid Pressure Regulators Part Series Model Type Maximum Fluid Inlet Pressure Regulated Pressure Range 233757 234263 B B P20-VM P20-VM npt Mechanical, fluid pressure 580 psi (4000 kPa, 40 bar) 15-290 psi (100-2000 kPa, 1-20 bar) 17L324 A P20-VM npt Mechanical, fluid pressure 1500 psi (10.3 MPa, 103 bar) 15-290 psi (100-2000 kPa, 1-20 bar). Preset to 185 psi (1275 kPa, 13 bar). 233759 234267 B B P50-VM P50-VM npt Mechanical, fluid pressure 1015 psi (7000 kPa, 70 bar) 145-725 psi (1000-5000 kPa, 10-50 bar) 233773 234272 B B P10-VP P10-VP npt Pneumatic, fluid pressure 580 psi (4000 kPa, 40 bar) 6-145 psi (40-1000 kPa, 0.4-10 bar) 233774 234273 B B P10-VM P10-VM npt Mechanical, fluid pressure 580 psi (4000 kPa, 40 bar) 15-145 psi (100-1000 kPa, 1-10 bar) 233809 234256 B B P10-VP, OEM P10-VP, OEM npt Pneumatic, fluid pressure 580 psi (4000 kPa, 40 bar) 6-145 psi 40-1000 kPa, 0.4-10 bar) Back Pressure Regulators Part Series Model Type Maximum Permanent Supply Pressure Regulated Pressure Range 233758 234262 B B P10-RM P10-RM npt Mechanical, back pressure 145 psi (1000 kPa, 10 bar) 15-145 psi (100-1000 kPa, 1-10 bar) 233810 234257 B B P10-RP P10-RP npt Pneumatic, back pressure 145 psi (1000 kPa, 10 bar) 15-145 psi (100-1000 kPa, 1-10 bar) 233811 234255 B B P20-RM DN13 P20-RM DN13 npt Mechanical, back pressure 290 psi (2000 kPa, 20 bar) 29-290 psi (200-2000 kPa, 2-20 bar) 233812 234258 B B P50-RM P50-RM npt Mechanical, back pressure 725 psi (5000 kPa, 50 bar) 73-725 psi (500-5000 kPa, 5-50 bar) 233950 234261 B B P20-RM DN1 P20-RM DN1 npt Mechanical, back pressure 290 psi (2000 kPa, 20 bar) 15-290 psi (100-2000 kPa, 1-20 bar) Pressure regulation valve e.g. P20- R M DN13 npt npt version Valve Seat Orifice 13mm Operating Mode P - pneumatic M - mechanical Action V - pressure regulation R - back-pressure regulation Regulation max 20 bar pressure

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury. • This equipment is for professional use only. • Read all instruction manuals, tags, and labels before operating the equipment. • Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. • Do not alter or modify this equipment. Use only genuine Graco parts and accessories. • Check equipment daily. Repair or replace worn or damaged parts immediately. • Do not exceed the maximum working pressure of the lowest rated system component. Refer to the Technical Data on page 19 for the maximum working pressure of this equipment. • Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer's warnings. • Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 180F (82C) or below -40F (-40C). • Wear hearing protection when operating this equipment. • Never use 1,1, 1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment. Such use could result in a chemical reaction, with the possibility of explosion. • Comply with all applicable local, state, and national fire, electrical, and safety regulations. PRESSURIZED EQUIPMENT HAZARD Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and cause serious injury. • Do not point the gun at anyone or at any parts of the body. • Do not stop or deflect leaks with your hand, body, glove, or rag. • Follow the Pressure Relief Procedure on page 10 whenever you are instructed to relieve pressure; stop spraying; clean, check, or repair the equipment; and install or clean the spray nozzle. • Tighten all fluid connections before operating the equipment. • Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately. Permanently coupled hoses cannot be repaired; replace the entire hose. TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed. • Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings. • Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state and national guidelines. • Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and solvent manufacturer.

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 line pressure to maintain the desired fluid pressure to the air spray gun or to a low pressure dispensing valve or atomizing head. Back Pressure Regulators Models 233810, 233811, 233812, 233950, 234255, 234257, 234258, 233758, 234261, and 234262, are back pressure regulators that limit the supply pressure to a set value by opening an outlet and guiding back excess material when the predetermined pressure has been achieved. These valves are used in circulating systems. Model 233810 pneumatic back pressure regulator is shown in FIG. 1. Fluid Pressure Regulators Models 233757, 233759, 233774, 234263, 234267, 234273, and 17L324 (FIG. 2.) are mechanically operated fluid pressure regulators designed primarily for use with low to medium viscosity fluids. Models 233773, 233809, 234256, and 234272 (FIG. 3.) are pneumatically operated fluid pressure regulators designed primarily for use with highly viscous coatings. Fig. 1. Cutaway of Pneumatic Back Pressure Regulator TI1773A Piston Valve plunger Fluid Outlet (return line) Air inlet Fluid Inlet (from gun) Diaphragm

Fig. 3. Cutaway of Pneumatic Fluid Pressure Regulator TI1772A Spring Valve plunger Fluid Outlet (to gun) Adjustment screw Fluid Inlet (from pump) Diaphragm Valve ball and seat TI1772B TI1771A Valve plunger Fluid Outlet (to gun) Air inlet Fluid Inlet (from pump) Diaphragm Valve ball and seat TI1771B

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: Connect the fluid line from the pump to the inlet of the fluid regulator. Connect the fluid line to the gun to the regulator’s outlet. b. Install a back pressure regulator downstream of the gun. Connect the fluid return line from the gun to the inlet of the back pressure regulator. Connect the fluid return line to the pump to the regulator’s outlet. 4. Flush and test the entire system. FIG. 4., FIG. 5., and FIG. 6. show possible configurations for installing a system. They do not depict actual system designs. Consult your Graco distributor for assistance in designing a system that meets your specific requirements. Fig. 4. Low pressure, non-circulating system, mechanical fluid regulator Key A B C D E F Fluid Air to gun Air to pump Y B TI1767A A Air line filter B Bleed-type air shut-off valve C Air regulator for pump and gun D Pump E Fluid regulator F Air spray gun Y Pump ground wire

Key A C D B F G Air to Fluid Regulator Air to Gun Air to Pump Fluid Y E B A B TI1766A A Air line filter B Bleed-type air shut-off valve C Air regulator for pump and gun D Pump E Fluid regulator F Air spray gun G Air regulator for fluid regulator Y Pump ground wire

Key A B J Air to gun Fluid to gun H C A B A B K G Air to Fluid Regulator Air to Back Pressure Regulator E Fluid return from gun Fluid Fluid F Air TI1768A A Air line filter B Bleed-type air shut-off valve C Air regulator for pump and gun E Fluid regulator F Air spray gun G Air regulator for fluid regulator H Fluid shutoff valve J Back pressure regulator K Air regulator for back pressure regulator Y Pump ground wire

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 during assembly of the system. Pressure Relief Procedure 1. Shut off the air to the pump. 2. Trigger the air spray gun to relieve the fluid pressure. 3. Open the fluid drain valve to relieve all fluid pressure, having a container ready to catch the drainage. Adjusting the Regulator The fluid pressure regulator controls pressure downstream from its outlet. The inlet fluid pressure should always be higher than the outlet fluid pressure. If you are using an accessory fluid pressure gauge, trigger the air spray gun to relieve pressure in the line when reducing the pressure, to ensure a correct gauge reading. Adjust the pump air pressure and the fluid pressure regulator for the best spraying combination. In a circulating system, the back pressure valve controls the fluid pressure upstream of its inlet in the same way. Mechanical Regulator 1. Back out the adjustment screw until there is no spring pressure. 2. Turn on the fluid supply, to admit fluid to the regulator. 3. Turn the screw clockwise to adjust fluid pressure to the desired level. Pneumatic Regulator 1. With the fluid supply shut off, turn on the air pressure to the regulator. 2. Turn on the fluid supply, to admit fluid to the regulator. 3. Increase the fluid inlet pressure. When the fluid outlet pressure is at the desired level, shut off the air to the fluid regulator. WARNING Read the warnings on page 4, and follow the Pressure Relief Procedure below whenever you: • are instructed to relieve pressure • stop spraying • check or service any of the equipment • install or clean the fluid nozzle.

To repair the regulator, refer to page 12. Problem Cause Solution Drop in fluid outlet pressure. Ruptured diaphragm (15). Replace diaphragm. Air escaping (pneumatic regulators only). Check air hose and connections. Replace piston seal (21). Fluid outlet pressure increases to level of fluid inlet pressure. Valve ball (5) and seat (2) are worn or stuck open. Clean ball and seat. Replace worn or damaged parts. Fluid leaking from upper housing. Ruptured diaphragm (15). Replace diaphragm.

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 supplier for recommended flushing fluids and flushing frequency. Relieve the pressure after flushing. Do not allow paint or solvent to sit in the system for extended periods. Fluid could dry in the regulator and cause leakage. If leakage occurs, relieve pressure, then disassemble and clean the regulator. Cleaning and Repair When changing fluids or colors, the regulator should be disassembled and cleaned. Regular cleaning and inspection of the internal parts is necessary to keep the fluid regulator working properly. 1. Relieve all air and fluid pressure in the system. 2. Remove the regulator from the system. 3. Disassemble the regulator (see the parts drawings on pages 13 through 18). 4. Clean and inspect all parts. 5. Inspect the diaphragm, packings, o-rings, and seals for wear. Check the ball and seat for nicks, wear, or other damage. 6. Lubricate packings, o-rings and seals when reassembling the regulator. CAUTION Be very careful when handling the carbide balls and seats. Damage will cause poor operation and leakage.

Part Numbers 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 6 7 4 8 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. Torque to 5 N•m (44in-lb). Apply medium-strength (blue) thread locker to the threads. 1 2 3 5 2 1 3 5 5 6 6 7 7 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233759 1 ---- HOUSING, lower, for 234267 1 2 245368 SEAT, valve 1 3 15Y036 O-RING 1 4 15Y035 O-RING 2 5 117106 BALL, 6 mm, carbide 1 6 15A205 SUPPORT, ball 1 7 117090 SPRING, compression 1 8 15A144 COVER 1 9 117123 SCREW, fhms, M4x10 2 10 15A219 RING, for non-npt model 233759 only 2 11 117101 PLUG, threaded 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245372 PLUNGER, valve 1 15 15A179 DIAPHRAGM 1 16 15A173 CAP, spring 1 17 117122 NUT, seal-lock 1 18 15A175 PLATE, spring, bottom 1 19 117096 SPRING, compression 1 20 117092 SPRING, compression 1 21 15A176 PLATE, spring, top 1 22 117105 BALL, 6 mm 1 23 15A186 PACKING, PTFE with carbon 1 24 245366 HOUSING, upper 1 25 117129 SCREW, shcs, M5x80 8 26 117017 WASHER 8 27 15A141 BONNET, cover 1 28 15A242 SCREW, custom 1 Ref. Part Description Qty.

Part Numbers 233812 and 234258 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 233812. Torque to 5 N•m (44in-lb). Apply medium-strength (blue) thread locker to the threads. 1 2 3 5 6 28 25 26 24 22 21 20 19 18 10 12 13 11 17 15 14 2 3 4 1 10 4 8 9 23 16 27 2 1 3 5 5 TI11248a 6 7 7 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233812 1 ---- HOUSING, lower, for 234258 1 2 245369 SEAT, valve 1 3 15Y036 O-RING 1 4 15Y035 O-RING 2 8 15A143 COVER 1 9 117123 SCREW, fhms, M4x10 2 10 15A219 RING, for non-npt model 233812 only 2 11 117101 PLUG, threaded 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245373 PLUNGER, valve 1 15 15A179 DIAPHRAGM 1 16 15A173 CAP, spring 1 17 117122 NUT, seal-lock 1 18 15A175 PLATE, spring, bottom 1 19 117096 SPRING, compression 1 20 117092 SPRING, compression 1 21 15A176 PLATE, spring, top 1 22 117108 BALL, 8 mm 1 23 15A186 PACKING, PTFE with carbon 1 24 245366 HOUSING, upper 1 25 117129 SCREW, shcs, M5x80 8 26 117017 WASHER 8 27 15A141 BONNET, cover 1 28 15A242 SCREW, custom 1 Ref. Part Description Qty.

Part Numbers 233757, 233774, 234263, 234273 and 17L324 TI1751A 3 4 28 25 24 22 21 19 10 12 13 11 17 15 14 2 3 4 1 10 5 6 7 4 8 9 23 16 2 1 5 5 Torque to 4-5 N•m (35-44 in-lb). Torque to 2 N•m (18 in-lb). For 17L324, torque to 5.6 N•m (50 in-lb). Torque to 5 N•m (44 in-lb). Grease OD. Used only on non-npt models 233757 and 233774. Apply medium-strength (blue) thread locker to the threads. 1 2 3 4 5 6 6 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233757 and 233774 1 ---- HOUSING, lower, for 234263, 234273, and 17L324 1 2 245368 SEAT, valve 1 24Z180 SEAT, valve, for 17L324 only 1 3 15Y036 O-RING 1 4 15Y035 O-RING 2 5 117106 BALL, 6 mm, carbide 1 17L570 BALL, 6mm, tungsten carbide, for 17L324 only 1 6 15A205 SUPPORT, ball 1 7 117090 SPRING, compression 1 8 15A144 COVER 1 17R503 COVER, for 17L324 only 1 9 117123 SCREW, fhms, M4x10 2 10 15A219 RING, for non-npt models 233757 and 233774 only 2 11 117101 PLUG, threaded 2 117099 PLUG, threaded, for 17L324 only 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245372 PLUNGER, valve 1 15 15A179 DIAPHRAGM 1 16 15A172 CAP, spring 1 17 117122 NUT, seal-lock 1 19 117087 SPRING, compression, for 233774 and 234273 1 117095 SPRING, compression, for 233757, 234263, and 17L324 1 21 15A177 PLATE, spring, top 1 22 117105 BALL, 6 mm 1 23 15A185 PACKING, PTFE with carbon 1 24 245365 HOUSING, upper 1 25 117126 SCREW, shcs, M5x16 8 28 15A241 SCREW, custom 1 Ref. Part Description Qty.

Part Numbers 233758, 233811, 233950, 234255, 234261, and 234262 3 4 28 25 24 22 21 19 10 12 13 11 17 15 14 2 3 4 1 10 4 8 9 23 16 2 1 5 5 Torque to 4-5 N•m (35-44 in-lb). Torque to 2 N•m (18 in-lb). Torque to 5 N•m (44 in-lb). Grease OD. Used only on non-npt models 233758, 233950, and 233811. Not used on models 233811 and 234255. Models 233811 and 234255 use a plug and retaining ring (not shown). Apply medium-strength (blue) thread locker to the threads. 1 2 3 4 5 6 7 6 7 6 6 TI11249a 8 8 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233758 and 233950 1 ---- HOUSING, lower for 234262 and 234261 1 15A198 HOUSING, lower, for 233811 1 15C303 HOUSING, lower, for 234255 1 2 245369 SEAT, valve, for 233758, 233950, 234261, and 234262 1 15A228 SEAT, valve, for 233811 and 234255 1 3 15Y036 O-RING, not used on models 233811 and 234255 1 4 15Y035 O-RING, for 233758, 233950, 234261, and 234262 2 15Y031 O-RING, for 233811 and 234255 2 8 15A143 COVER, for 233758, 233950, 234261, and 234262 1 15A222 PLUG, for 233811 and 234255 1 9 117123 SCREW, fhms, M4x10, not used on models 233811 and 234255 2 10 15A219 RING, for non-npt models 233758, and 233950 2 15A221 RING, for non-npt model 233811 2 11 117101 PLUG, threaded, not used on models 233811 and 234255 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245373 PLUNGER, valve, for 233758, 233950, 234261, and 234262 1 245378 PLUNGER, valve, for 233811 and 234255 1 15 15A179 DIAPHRAGM 1 16 15A172 CAP, spring 1 17 117122 NUT, seal-lock 1 19 117087 SPRING, compression, for 233758 and 234262 1 117095 SPRING, compression, for 233811, 233950, 234261, and 234255 1 21 15A177 PLATE, spring, top 1 22 117105 BALL, 6 mm 1 23 15A185 PACKING, PTFE with carbon 1 24 245365 HOUSING, upper 1 25 117126 SCREW, shcs, M5x16 8 28 15A241 SCREW, custom 1 29 117124 RING, retaining, 233811 and 234255 only 1 Ref. Part Description Qty.

Part Numbers 233773, 233809, 234272, and 234256 TI1755A 25 24 21 17 10 12 13 11 15 14 2 3 4 1 10 5 6 7 4 8 9 23 16 2 1 3 4 26 27 Torque to 4-5 N•m (35-44 in-lb). Torque to 2 N•m (18 in-lb). Torque to 5 N•m (44 in-lb). Grease OD. Used only on non-npt models 233773 and 233809. Used only on npt models 234272 and 234256. Apply medium-strength (blue) thread locker to the threads. 1 2 3 4 5 6 5 5 6 6 7 7 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233773 and 233809 1 ---- HOUSING, lower, for 234272 and 234256 1 2 245368 SEAT, valve, for 233773 and 234272 1 245371 SEAT, valve, for 233809 and 234256 1 3 15Y036 O-RING 1 4 15Y035 O-RING 1 5 117106 BALL, 6 mm, carbide, for 233773 and 234272 1 117110 BALL, 6 mm, for 233809 and 234256 1 6 15A205 SUPPORT, ball 1 7 117090 SPRING, compression 1 8 15A144 COVER 1 9 117123 SCREW, fhms, M4x10 2 10 15A219 RING, for non-npt models 233773 and 233809 2 11 117101 PLUG, threaded 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245372 PLUNGER, valve 1 15 15A179 DIAPHRAGM 1 16 15A204 PISTON 1 17 117122 NUT, seal-lock 1 21 117102 SEAL, flat 1 23 15A185 PACKING, PTFE with carbon 1 24 15A191 HOUSING, upper 1 25 117127 SCREW, shcs, M5x35 8 26 15C332 FITTING, for npt models 234272 and 234256 only 1 27 15C333 WASHER, for npt models 234272 and 234256 only 1 Ref. Part Description Qty.

Part Numbers 233810 and 234257 25 24 21 17 10 12 13 11 15 14 2 3 4 1 10 4 8 9 23 16 2 1 3 4 26 27 Torque to 4-5 N•m (35-44 in-lb). Torque to 2 N•m (18 in-lb). Torque to 5 N•m (44 in-lb). Grease OD. Used only on non-npt model 233810. Used only on npt model 234257. Apply medium-strength (blue) thread locker to the threads. 1 2 3 4 5 6 5 5 TI11250a 6 6 7 7 Ref. Part Description Qty. 1 ---- HOUSING, lower, for 233810 1 ---- HOUSING, lower, for 234257 1 2 245369 SEAT, valve 1 3 15Y036 O-RING 1 4 15Y035 O-RING 1 8 15A143 COVER 1 9 117123 SCREW, fhms, M4x10 2 10 15A219 RING, for non-npt model 233810 2 11 117101 PLUG, threaded 2 12 117085 SEAL, ring 1 13 117099 PLUG, threaded 1 14 245373 PLUNGER, valve 1 15 15A179 DIAPHRAGM 1 16 15A204 PISTON 1 17 117122 NUT, seal-lock 1 21 117102 SEAL, flat 1 23 15A185 PACKING, PTFE with carbon 1 24 15A191 HOUSING, upper 1 25 117127 SCREW, shcs, M5x35 8 26 15C332 FITTING, for npt model 234257 only 1 27 15C333 WASHER, for npt model 234257 only 1 Ref. Part Description Qty.

Category Data Maximum Fluid Inlet Pressure (Fluid Pressure Regulators) 233757, 233773, 233774, 233809, 234256, 234263, 234272, 234273: 580 psi (4000 kPa, 40 bar) 17L324: 1500 psi (10.3 MPa, 103 bar) 233759, 234267: 1015 psi (7000 kPa, 70 bar) Maximum Permanent Supply Pressure (Back Pressure Regulators) 233758, 233810, 234257, 234262: 145 psi (1000 kPa, 10 bar) 233811, 233950, 234255, 234261: 290 psi (2000 kPa, 20 bar) 233812, 234258: 725 psi (5000 kPa, 50 bar) Pressure Range 233773, 233809, 234272, 234256: 6-145 psi (40-1000 kPa, 0.4-10 bar) 233758, 233774, 233810, 234257,234262, 234273: 15-145 psi (100-1000 kPa, 1-10 bar) 233757, 234263: 15-290 psi (100-2000 kPa, 1-20 bar) 17L324: 15-290 psi (100-2000 kPa, 1-20 bar). Preset to 185 PSI (1275 kPa, 13 bar). 233811, 233950, 234255, 234261: 29-290 psi (200-2000 kPa, 2-20 bar) 233812, 234258: 73-725 psi (500-5000 kPa, 5-50 bar) 233759, 234267: 145-725 psi (1000-5000 kPa, 10-50 bar) Maximum Operating Air Pressure (Pneumatic Regulators Only) 145 psi (1 MPa, 10 bar) Sound Pressure Level <70 dB(A) Maximum Flow Rate See chart on page 20. Temperature Range 233757, 233758, 233759, 233773, 233774, 233809, 233810, 233811, 233950, 234255, 234256, 234261, 234262, 234263, 234273, 17L324: 32-194°F (0-90°C) 233812, 234258: 50-176°F (10-80°C) Fluid inlet and outlet 233757, 233758, 233759, 233773, 233774, 233809, 233810, 233812, 233950: 3/8 in. BSPP(F) 234256, 234257, 234258, 234261, 234262, 234263, 234267, 234272, 234273, 17L324: 3/8 in. npt(f) 233811: 1 in. BSPP(F) 234255: 1 in. npt(f) Air inlet 233773, 233809, 233810: 1/4 in. BSPP(F) 234256, 234257, 234272: 1/4 in. npt(m) *Gauge port 1/8 in. BSPP(F) Wetted Parts Stainless steel, tungsten carbide, PTFE, chemically resistant fluoroelastomer, PEEK (233809 and 234256 only)

Maximum fluid flow with 10 weight oil, regulator wide open and no downstream restrictions. Part Gauge 233774 118338 243273 118338 233757 118338 234262 118338 233759 118339 234267 118339 234773 118338 234272 118338 233809 118338 234273 118338 233758 118338 234262 118338 233950 118338 234261 118338 233811 118338 234255 118338 233812 118339 234258 118339 233810 118338 234257 118338 Part Gauge Part Inlet Fluid Test Pressure Inlet/Outlet Size Seat Size Fluid Flow 233757 234263 580 psi (4000 kPa, 40 bar) 3/8 BSPP(F) 3/8 npt(f) 5 mm 7.0 gpm (26.6 lpm) 17L324 1500 psi (10.3 MPa, 103 bar) 3/8 npt(f) 5 mm 7.0 gpm (26.6 lpm) 233758 234262 145 psi (1000 kPa, 10 bar) 3/8 BSPP(F) 3/8 npt(f) 6.5 mm 4.6 gpm (17.5 lpm) 233759 234267 1015 psi (7000 kPa, 70 bar) 3/8 BSPP(F) 3/8 npt(f) 5 mm 9.8 gpm (37.2 lpm) 233773 234272 580 psi (4000 kPa, 40 bar) 3/8 BSPP(F) 3/8 npt(f) 5 mm 7.0 gpm (26.6 lpm) 233774 234273 580 psi (4000 kPa, 40 bar) 3/8 BSPP(F) 3/8 npt(f) 5 mm 7.0 gpm (26.6 lpm) 233809 234256 580 psi (4000 kPa, 40 bar) 3/8 BSPP(F) 3/8 npt(f) 5 mm 7.0 gpm (26.6 lpm) 233810 234257 145 psi (1000 kPa, 10 bar) 3/8 BSPP(F) 3/8 npt(f) 6.5 mm 4.6 gpm (17.5 lpm) 233811 234255 290 psi (2000 kPa, 20 bar) 1 in. BSPP(F) 1 in. npt(f) 13 mm 7.8 gpm (29.6 lpm) 233812 234258 725 psi (5000 kPa, 50 bar) 3/8 BSPP(F) 3/8 npt(f) 6.5 mm 11.5 gpm (43.7 lpm) 233950 234261 290 psi (2000 kPa, 20 bar) 3/8 BSPP(F) 3/8in. npt(f) 6.5 mm 5.7 gpm (21.7 lpm)

233758 234262 M5 24 mm (0.95 in.) 233759 234267 M5 24 mm (0.95 in.) 233773 234272 M5 24 mm (0.95 in.) 233774 234273 M5 24 mm (0.95 in.) 233809 234256 M5 24 mm (0.95 in.) 233810 234257 M5 24 mm (0.95 in.) 233811 234255 M5 36 mm (1.42 in.) 233812 234258 M5 24 mm (0.95 in.) 233950 234261 M5 24 mm (0.95 in.) A

Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 309474 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA Copyright 2002, Graco Inc. is registered to ISO 9001 www.graco.com Revision U, February 2020 Graco 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