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Graco Inc. 233757 manual

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Table of contents for the manual

  • Page 1

    Instructions/ Parts List Low Pressure Fluid Regulators 309474 K EN Important Safety Instructi ons Read all warnings and instr uctions in this manual. Save these instructions. Model 233757 Sh own II 2 G[...]

  • Page 2

    2 309474K Contents List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Back P ressure R egulators . . . . . . . . . . . . . . . . . 6 Fluid Pres sure Reg ulators . . . . . . . . . . . . . . . . . 6 Installation . . . . . . . . . . . . . . . . . . . .[...]

  • Page 3

    List of Model s 309474K 3 List of Models Key to Model Designation Fluid Press ure Regulat ors Part No. Series Model Type Maximum Fluid Inlet Pr essure Regulated Pr essure Range 233757 234263 B B P20- VM P20- VM npt Mech anical, fluid pres sure 580 psi ( 4000 kP a, 40 bar) 15-290 psi (100-2000 kPa, 1-20 bar) 233759 234267 B B P50- VM P50- VM npt Mec[...]

  • Page 4

    Warning 4 309474K WARNING EQUIPMENT MISUSE HAZARD Equip ment misus e can cause the equipm ent to rup ture or mal function and result in serious injury. • This e quipment is for professi onal use onl y. • Read all i nstructio n manuals , tags, an d labels bef ore operating t he equipme nt. • Use the eq uipmen t only for its intended p urpose. [...]

  • Page 5

    Warning 309474K 5 PRESSURIZED EQUIP MENT HAZARD Spray f rom the gu n, hose leak s, or rupt ured compon ents can sp lash flui d in the e yes or on th e skin and cause s erious injury . • Do not p oint the gu n at anyon e or at any p arts of the bo dy. • Do not stop or defle ct leaks with y our hand, bo dy, glove, o r rag. •F o l l o w t h e Pr[...]

  • Page 6

    Introduc tion 6 309474K Introduction A fluid pre ssure regu lator is use d in air spray sys tems to ensure accurate, p ositive co ntrol of fluid press ure to an air spray gun or to a low pres sure di spensing v alve or atomizi ng head. A regul ator installe d at a ci rculating line take- off or pump reduces ma in line pres sure to main tain the des[...]

  • Page 7

    Introduc tion 309474K 7 Fig. 2. Cutaway of Mechanical Fluid Pressure Regulator Fig. 3. Cu taway of Pneu matic Fluid Pr essure Reg ulator TI1772A Sprin g Valve plunger Fluid Outl et (to gun) Adj ustm ent sc rew Fluid Inlet (from pump) Diaphragm Valve b all and seat TI 1772B TI1771A Valve plunger Fluid Outlet (to gun) Air inlet Fl uid In let (from pu[...]

  • Page 8

    Inst allation 8 309474K Installation 1. Install o ne regulator for each sp ray gun. 2. Apply th read sea lant to co nnect ions as nec essary. 3. Make sure that the direction of fluid flow agrees wit h the flo w direction markin gs on the re gulator body . a. Install a fluid pres sure regu lator upstream of the gun: Conn ect the fluid line fro m the[...]

  • Page 9

    Installa tion 309474K 9 Fig. 5. Low pressu re, non-circulat ing syste m, pneumatic fluid regulator Key A C D B F G Air to Fluid Regulator Air to Gun Air to Pump F l u i d Y E B AB TI1766A A Air li ne filter B Bleed-t ype air shu t-off val ve C Air regu lator for pu mp and gun DP u m p E Fluid regul ator F Air spray gun G Air regul ator for flu id r[...]

  • Page 10

    Inst allation 10 309474K Fig. 6. Low Pressure circulati ng system, pneumatic fluid regulat or and back pressure regulator 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 Pressu re Regulator E Flui d retu rn fr om g un Fluid Fluid F Air TI1768A A Air li ne filter B Bleed-t ype air shut -off valve C Air regu lator[...]

  • Page 11

    Operatio n 309474K 11 Operation Flush Before First Use Your pres sure regu lator has been tested in the fac tory with an anti-corro sion liqui d. Before using the r egulator, thorough ly flush the system with a sol vent to rem ove residu e of this liqui d as well as any contami nants that have been introdu ced during assembly o f the system . Press[...]

  • Page 12

    Troub leshooti ng 12 309474K Troubleshooting Relieve the pressure (page 11) b efore ch ecking or repairing the equipment . To repair the regu lator, refe r to page 1 3. Problem Cause Solution Drop in f luid outlet pre ssure. Ruptured diaphragm ( 15). Repla ce diaphra gm. Air esc aping (pneum atic regulator s only). Check a ir hose and conne ctions.[...]

  • Page 13

    Main tenance 309474K 13 Maintenance Flushing Flush befo re changin g colors, a t the end of the day, before s toring, and b efore repai ring the equ ipment . Flush with a fluid that is c ompatible with the fluid y ou are pumping a nd with the wetted part s of your sy stem. Check with y our fluid m anufacturer or supplier for rec- ommend ed flushing[...]

  • Page 14

    Parts 14 309474K Parts Mechanical Fl uid Pressure Regulators Part Nos. 233759 and 23426 7 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). 1 2 3 5 6 2 1 [...]

  • Page 15

    Parts 309474K 15 Mechanical Back Pressur e Regulators Part Nos. 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). 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 TI112 48a 6 Ref.[...]

  • Page 16

    Parts 16 309474K Mechanical Fl uid Pressure Regulators Part Nos. 233757, 233 774, 234263, and 234273 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). Torque to 5 N•m (44 in-lb). Grease OD. Used only on non-npt models 233757 and 233774. 1 2 3 4[...]

  • Page 17

    Parts 309474K 17 Mechanical Back Pressure Regul ators Part Nos. 233758, 233 811, 233950, 234255, 234261, and 2342 62 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 233[...]

  • Page 18

    Parts 18 309474K Pneumatic Flui d Pressure Regulators Part Nos. 233773, 233 809, 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[...]

  • Page 19

    Parts 309474K 19 Pneumatic Back Pressur e Regulators Part Nos. 233810 and 23425 7 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 m odel 233810. Used only on npt m odel 234257. 1 2 3 4 5 6 5 5 TI11250 a[...]

  • Page 20

    Technic al Data 20 309474K Technical Data * Acces sory gau ges availa ble. Category Data Maximum Fluid Inle t Pressure (Flu id Pres sure Regula tors ) 233757, 2 33773, 233774, 233 809, 234256, 2 34263, 234272, 234 273 : 580 psi (4000 kPa, 40 bar) 233759, 2 34267: 1015 psi (7000 kPa, 70 bar) Maximum Permane nt Supply P res- sure ( Back Press ure Reg[...]

  • Page 21

    Acce ssory Gauges 309474K 21 Accessory Gauges Flow Rate Data Maximum fluid flo w with 10 weigh t oil, regul ator wide ope n and no do wnstream restriction s. Part No. Gauge 233774 1183 38 243273 1183 38 233757 1183 38 234262 1183 38 233759 1183 39 234267 1183 39 234773 1183 38 234272 1183 38 233809 1183 38 234273 1183 38 233758 11 8338 234262 11 83[...]

  • Page 22

    Mountin g Dimension s 22 309474K Mount ing Dim ensi ons Part No. Thread Dimension A 233757 234263 M5 24 mm ( 0.95 in.) 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 m[...]

  • Page 23

    Mount ing D imens ions 309474K 23[...]

  • Page 24

    All written and visual data contained in this document reflects t he latest product i nformation available at the time of publica tion. Graco rese rves the right to make changes at any time without notice. This manual contains English. MM 309474 Graco H eadquarte rs: Min neapol is International O ffices: Bel gium, China, Jap an, Korea GRACO INC. AN[...]