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309475F

Instructions/Parts List

High Pressure

Fluid Regulators

Important Safety Instructions

Read all warnings and instructions in this manual. 
Save these instructions.

II 2 G

Summary of Contents for 233760

Page 1: ...309475F Instructions Parts List High Pressure Fluid Regulators Important Safety Instructions Read all warnings and instructions in this manual Save these instructions II 2 G ...

Page 2: ...26 Graco Warranty 28 Graco Information 28 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 5 for detailed information CAUTION A caution alerts you to the possibil...

Page 3: ...neumatic 5000 psi 36 MPa 360 bar 600 4600 psi 4 32 MPa 40 320 bar 233813 234259 B B P250 VP P250 VP npt Pneumatic 5000 psi 36 MPa 360 bar 600 3600 psi 4 25 MPa 40 250 bar 233814 234260 B B P100 VM P100 VM npt Mechanical 2600 psi 18 MPa 180 bar 600 1500 psi 4 10 MPa 40 100 bar Back Pressure Regulators Part No Series Model Type Maximum Permanent Supply Pressure Regulated Pressure Range 233771 234268...

Page 4: ...he Technical Data on page 24 for the maximum working pressure of this equipment Use fluids and solvents which are compatible with the equipment wetted parts Refer to the Techni cal 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 ...

Page 5: ... the steps under Pressure Relief Procedure page 13 when you stop spraying and before cleaning checking or repairing equipment Check the hoses and couplings daily Replace worn damaged or loose parts immediately Perma nently coupled hoses cannot be repaired replace the entire hose Tighten all fluid connections before each use TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury...

Page 6: ...ressure to a set value by opening an outlet and guiding back excess material when the prede termined pressure has been achieved These valves are used in circulating systems Models 233767 233814 233768 234260 234264 and 234265 FIG 2 are mechanically operated fluid pres sure regulators designed primarily for use with low to medium viscosity fluids Models 233760 233769 233770 233813 234259 234266 234...

Page 7: ...ator Fig 3 Cutaway of Pneumatic Fluid Pressure Regulator T I 1 7 6 9 A Adjustment knob Spring Valve plunger Adjustment knob Fluid inlet from pump Adjustment knob Fluid outlet to gun TI1769A TI1774A Fluid Outlet To gun Fluid Inlet From pump Diaphragm Air Inlet Valve plunger ...

Page 8: ...he 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 syste...

Page 9: ...in Air in Air in to gun to pump Y G G H Z TI1763C A Air line filter B Bleed type air shut off valve C Pump air regulator D Gun air regulator E Fluid hose F Pump G Fluid drain valve H Fluid shut off valve J Mechanical fluid pressure regulator K Fluid pressure gauge L Air assisted spray gun M Fluid filter Y Pump ground wire Z Whip hose ...

Page 10: ...n Air to Pump F l u i d Fluid Y B A B Z E TI1764C A Air line filter B Bleed type air shut off valve C Pump air regulator D Gun air regulator E Fluid hose F Pump G Fluid drain valve H Fluid shut off valve J Pneumatic fluid regulator K Fluid pressure gauge L Gun M Fluid filter N Air regulator to operate adjust fluid regulator Y Pump ground wire Z Whip hose ...

Page 11: ...fluid regulator and back pressure regulator Key TI1765A A B D J P L H Air supply Air to gun Fluid in to gun H A Air line filter B Bleed type air shut off valve D Pump air regulator H Fluid shut off valve J Mechanical fluid regulator L Gun P Mechanical back pressure regulator ...

Page 12: ...Installation 12 309475F ...

Page 13: ...its outlet The inlet fluid pressure should always be higher than the outlet fluid pressure If you are using an accessory fluid pressure gauge trig ger the spray gun to relieve pressure in the line when reducing the pressure to ensure a correct gauge read ing Adjust the pump air pressure and the fluid pressure reg ulator for the best spraying combination In a circulating system the back pressure va...

Page 14: ...ators only Replace diaphragm Air escaping pneumatic regulators only Check air hose and connections Replace packings 13 Worn packings Replace packings 13 Fluid outlet pressure increases to level of fluid inlet pressure Valve ball 8 and seat 4 are worn or stuck open Clean ball and seat Replace worn or damaged parts Fluid leaking from upper housing Ruptured diaphragm 17 pneu matic regulators only Rep...

Page 15: ...id pressure in the system 2 Remove the regulator from the system 3 Disassemble the regulator see the parts drawings on pages 16 through 22 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 reas sembling the regulator 7 Torque as specified on the parts drawings ...

Page 16: ...rts 16 309475F Parts Mechanical Regulators Part Nos 233767 shown 233768 233814 234260 234264 and 234265 26 24 23 21 20 25 16 19 16 10 14 26 13 12 15 9 1 6 4 5 8 7 27 3 2 11 Torque to 25 N m 18 5 ft lb 1 1 ...

Page 17: ...LUNGER valve 1 10 15A217 HOUSING packing 1 11 117112 O RING slit 1 12 15A223 GLAND male 1 13 15A142 PACKING 3 14 15A149 GLAND female 1 15 117125 RING retaining internal 1 16 15A178 PLATE spring 2 19 117093 SPRING compression for 233814 and 234260 1 117094 SPRING compression for 233767 233768 234264 and 234265 1 117088 SPRING compression for 233768 234265 1 20 15A192 HOUSING upper 1 21 117103 SEAL ...

Page 18: ...Parts 18 309475F Mechanical Back Pressure Regulators Part Nos 233771 233772 234268 and 234269 shown 26 24 23 21 20 25 16 19 16 10 14 26 13 12 15 9 1 6 4 5 27 2 11 1 Torque to 25 N m 18 5 ft lb 1 ...

Page 19: ...ve 1 10 15A217 HOUSING packing 1 11 117112 O RING slit 1 12 15A223 GLAND male 1 13 15A142 PACKING 3 14 15A149 GLAND female 1 15 117125 RING retaining internal 1 16 15A178 PLATE spring 2 19 117093 SPRING compression for 233771 and 234268 1 117094 SPRING compression for 233772 and 234269 1 20 15A192 HOUSING upper 1 21 117103 SEAL flat 1 23 15A240 SCREW custom 1 24 15A203 CAP 1 25 117108 BALL 8 mm 1 ...

Page 20: ...Parts 20 309475F Pneumatic Regulators Part No 233813 and 234259 TI1749A 17 20 16 18 14 13 12 15 9 1 6 4 5 8 7 27 3 2 11 26 1 Torque to 10 N m 7 5 ft lb 1 30 29 11 ...

Page 21: ...7 15A206 SUPPORT ball 1 8 117104 BALL 5mm carbide 1 9 245375 PLUNGER valve 1 11 15Y033 O RING 1 12 15A223 GLAND male 1 13 15A142 PACKING 3 14 15A149 GLAND female 1 15 117125 RING retaining internal 1 16 15A212 PLATE diaphragm 1 17 15A180 DIAPHRAGM 1 18 15A218 HOUSING diaphragm 1 20 15A145 COVER diaphragm 1 26 117128 SCREW shcs M8x50 6 27 15Y029 O RING 1 29 15C332 FITTING npt models only 1 30 15C33...

Page 22: ...Pneumatic Regulators Part Nos 233760 shown 233769 233770 234266 234270 and 234271 TI1745A 17 20 16 10 9 1 6 4 8 7 27 3 2 11 26 22 22 18 29 28 31 30 13 1 Torque to 10 N m 7 5 ft lb 1 Torque to 12 N m 8 8 ft lb 2 2 33 32 ...

Page 23: ...gm for 233769 and 234270 1 15A215 PLATE diaphragm for 233770 and 234271 1 17 15A181 DIAPHRAGM for 233760 and 234266 1 15A182 DIAPHRAGM for 233769 and 234270 1 15A183 DIAPHRAGM for 233770 and 234271 1 18 15A209 HOUSING diaphragm for 233760 and 234266 1 15A210 HOUSING diaphragm for 233769 and 234270 1 15A211 HOUSING diaphragm for 233770 and 234271 1 20 15A146 COVER diaphragm for 233760 and 234266 1 ...

Page 24: ...perating Air Pressure Pneumatic Regulators Only 233760 233770 233813 234259 234266 234271 85 psi 0 6 MPa 6 bar 233769 234270 75 psi 0 5 MPa 5 bar Maximum Flow Rate See chart on page 26 Temperature Range 233767 233768 233771 233772 233813 233814 234259 234260 234264 234265 234268 234269 32 194 F 0 90 C 233760 233769 233770 234266 234270 234271 50 176 F 10 80 C Fluid inlet and outlet 233767 233768 2...

Page 25: ...Accessory Gauges 309475F 25 Accessory Gauges Model Gauge 233760 118340 234266 118340 233769 118341 234270 118341 234770 118341 234271 118341 ...

Page 26: ...770 234271 3800 psi 26 MPa 266 bar 3 4 BSPP F 3 4npt F 12 3 gpm 46 7 lpm 233771 234268 2500 psi 17 MPa 170 bar 3 8 BSPP F 3 8npt F 10 2 gpm 38 8 lpm 233772 234269 3400 psi 23 5 MPa 235 bar 3 8 BSPP F 3 8npt F 13 1 gpm 49 8 lpm 233813 234259 3800 psi 26 MPa 266 bar 3 8 BSPP F 3 8npt F 10 6 gpm 40 3 lpm 233814 234260 2500 psi 17 MPa 170 bar 3 8 BSPP F 3 8npt F 8 1 gpm 30 8 lpm Part No Thread Dimensi...

Page 27: ...Mounting Dimensions 309475F 27 ...

Page 28: ...ect 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...

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