Instruction/ maintenance manual of the product 233757 Graco Inc.
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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.
2 309474K Contents List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Back P ressure R egulators . . . . . . . . . . . . . . . . . 6 Fluid Pres sure Reg ulators .
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- .
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.
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.
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.
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 e.
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 .
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 .
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 t.
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 .
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.
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.
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.
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.
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).
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).
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).
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.
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.
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.
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.
Mount ing D imens ions 309474K 23.
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 important point after buying a device Graco Inc. 233757 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco Inc. 233757 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco Inc. 233757 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco Inc. 233757 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco Inc. 233757 will certainly help you make a decision on the purchase.
If you already are a holder of Graco Inc. 233757, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco Inc. 233757.
However, one of the most important roles played by the user manual is to help in solving problems with Graco Inc. 233757. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco Inc. 233757 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
