Graco 308647P User's Manual
Contents
1. 113624 113625 113626 191914 113651 112365 109213 Parts List Models 238889 238890 238891 and 238892 Description ACTUATOR COVER spring NUT spring retainer BASE HOUSING sst VALVE HOUSING sst RETAINER spring guide PLUNGER spring PLATE backing BASE HOUSING SCREW cap socket head M10 x 1 5 x 70 ADJUSTING SCREW cap socket head M8 x 1 25 x 45 SPRING compression red for Models 238889 amp 238890 SPRING compression yellow for Models 238891 amp 238892 DIAPHRAGM regulator TPE cream colored DIAPHRAGM regulator PTFE white SEAT valve O RING packing PTFE BALL O RING packing PTFE 025 Qty ae ee Cees ee eee Cees Cae Care S 1 Ref 18t 19 20t 21t 23 27 28 29 30 Part No Description Qty 107079 O RING packing PTFE 019 O RING packing PTFE 013 109450 O RING packing PTFE 016 111858 SPRING compression 113634 WRENCH hex 6 mm not shown 191919 RETAINER spring sleeve 113641 GAUGE pressure for Model 238890 113654 GAUGE pressure for Model 238892 238896 PLUG EZ Flush includes Ref 30 for Models 238889 amp 238891 107509 O RING packing PTFE 007 Included in Fluid Diaphragm Repair Kit 238747 Included in Cartridge Repair Kit 238748 To convert to a higher or lower pressure range order one of the following compression springs 113625 500 to 3000 psi 3 4 to 21 MPa 34 to 207 bar 113626 3000 to 5000 psi 21 to 34 MPa 207 to 345 bar2. checkmark for example 3 in the Parts Drawings and Lists on pages 14 and 16 To convert from a spring operated to an air operated regulator order the Air Operated Conversion Kit Part 238749 Parts included in this kit are marked with a double dagger for example 37 in the Parts Drawings and Lists on pages 14 and 16 NOTE To convert from a medium pressure range spring operated model to a high pressure range spring operated model or vice versa order the appropriate spring 11 from the Parts List on page 15 Installing the Air Operated Conversion Kit See Parts Drawings on pages 14 16 1 Relieve the pressure A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 7 2 On the spring operated regulator turn the adjusting screw 10 counterclockwise until it is loose enough to fully relieve the spring tension 3 Use a strap wrench or an equivalent wrench to loosen and remove the spring cover 2 spring retainers 6 and 27 and spring 11 4 Place the stabilizing spring 22 of the air operated regulator on the piston rod 6 Install the conversion kit assembly onto the backing plate 8 Torque to 15 to 20 ft lb 20 to 27 Nem 5 Plumb an air line up to the 1 4 npt m threads of the nipple 35 on the air regulator 6 Flush the system see page 9 and set the regulator pressure by following the proce
3. 00 psi 500 3000 psi 238890 with fluid pressure gauge Medium 41 MPa 414 bar 3 4 21 MPa 34 207 bar 6000 psi 3000 5000 psi 238691 with EZ Flush gauge port plug High 44 MPa 444 ban 21 34 MPa 207 345 bar 6000 psi 3000 5000 psi eecoee M Na piesstioralde High 41 MPa 414 bar 21 34 MPa 207 345 bar Air Operated Models mere Maximum Inbound Maximum Fluid Regulated Fluid PartNo pescinion Range hroreseue ina Presure Oulet Presowe 238893 with EZ Flush gauge Full 100 psi 6000 psi 500 4000 psi port plug 0 7 MPa 7 bar 41 MPa 414 bar 3 4 28 MPa 34 276 bar 238894 with fluid pressure 100 psi 6000 psi 500 4000 psi gauge 0 7 MPa 7 bar 41 MPa 414 bar 3 4 28 MPa 34 276 bar 244734 with EZ Flush gauge Full 100 psi 6000 psi 500 4000 psi port plug 0 7 MPa 7 bar 41 MPa 414 bar 3 4 28 MPa 34 276 bar 248090 with fluid pressure 100 psi 6000 psi 500 4000 psi gauge LASD 0 7 MPa 7 bar 41 MPa 414 bar 3 4 28 MPa 34 276 bar 255072 high resolution with 100 psi 6000 psi 500 2700 psi fluid pressure gauge 0 7 MPa 7 bar 41 MPa 414 bar 3 4 19 MPa 34 190 bar 2 308647 Symbols Warning Symbol Caution Symbol This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions or destruction of equipment if you do not follow the instructions A WARNING EQUIPMENT MISUSE HA
4. 191585 191583 113623 114104 191914 113651 15D092 109213 Parts List Model 244734 Description Qty ACTUATOR HOUSING ADAPTER NUT spring retainer REGULATOR HOUSING VALVE HOUSING sst ROD piston PLUNGER spring PLATE backing BASE HOUSING SCREW cap socket head M10 x 1 5x 70 4 SCREW machine 1 4 20x 1 0 12 DIAPHRAGM regulator PTE cream colored 1 DIAPHRAGM regulator PTFE white 1 SEAT valve 1 O RING packing PTFE 1 1 1 an EET EE T e OE E a a BALL O RING packing PTFE 025 Ref No 18t 19 20t 21t 22 28 29 Part No 107079 109450 111858 160062 100326 192194 180979 238896 107509 198171 198241 111457 Description Qty O RING packing PTFE 019 1 O RING packing PTFE 013 1 O RING packing PTFE 016 1 SPRING compression 1 SPRING stabilizing 1 COVER diaphragm 1 HOUSING diaphragm 1 SCREW machine 1 4 20x 1 2 1 WASHER support 1 DIAPHRAGM nylon 1 PLUG EZ Flush includes Ref 39 1 O RING packing PTFE 007 1 FITTING elbow 1 PLUG pressure 2 PACKING o ring PTFE 012 2 Included in Fluid Diaphragm Repair Kit 238747 t Included in Cartridge Repair Kit 248098 Included in Air Operated Conversion Kit 238749 Included in Diaphragm Housing Repair Kit 16P596 308647 19 Technical Data Model 238890 Model 238892 Models 238894 Model 244734 spring operated with spring operated with 248090 and 255072 air operated with fluid pressure gauge fluid pre
5. 2 Torque the base housing screws 9 first to 20 to 25 ft lb 27 to 34 Nem then to 30 to 35 ft lb 41 to 5 Clean and inspect the bore in the backing plate 8 48 Nem in the sequence shown in Fig 3 for wear and replace it if necessary 10 2 Torque Sequence for Regulator Base Housing Screws 9 backing plate 8 5 cartridge diaphragm assembly and valve actuator subassembly 06656 Fig 3 12 308647 Service Replacing the Cartridge NOTE The retaining nut 3 often loosens when removing the cartridge assembly from the base See Fig 3 and follow the steps below For parts that housing Be sure to re torque as described in are not called out in Fig 3 see the Parts Drawing on step 4 page 14 3 Inspect and clean the internal walls of the base A CAUTION housing 4 NOTE B ful that d t scrape or Handle the hard carbide parts which are the ball Se ee gouge the internal walls of the base housing Ce aa valve seat 14 carefully because they are sealing surfaces 4 Re torque the retaining nut 3 to 140 to 160 in Ib 1 Relieve the pressure 16 to 18 Nem A WARNING NOTE You must re torque the retaining nut before you install it in the base housing in step 5 To reduce the risk of serious injury whenever you 5 are instructed to relieve pressure always follow the Pressure Relief Procedure on page 7 Install the new cartridge assembly in the base housing 4 and torque the v
6. 308647 15 eo oo _ 1 1 1 Parts Drawing Models 238893 238894 248090 and 255072 238893 with EZ Flush gauge port plug 238894 with fluid pressure gauge 248090 with fluid pressure gauge for LASD material 255072 High Resolution Air Operated Regulator 100 psi 0 7 MPa 7 bar Maximum Inbound Air Pressure 500 to 4000 psi 3 4 to 28 MPa 34 to 276 bar Regulated Fluid Outlet Pressure 36 on 19 DETAIL OF MODEL 248090 06287 AN Torque to 25 to 30 in lb 2 8 to 3 4 Nem AA Torque to 140 to 160 in Ib 16 to 18 Nem AN Torque to 15 to 20 ft lb 20 to 27 Nem A Torque to 30 to 35 ft lb 41 to 48 Nem AN Torque first to 20 to 25 ft lb 27 to 34 Nem then to 30 to 35 ft lb 41 to 48 Nem in the sequence shown in DETAIL at left A First torque to 30 33 in lb 3 4 3 7 Nem in alternating pattern then torque to 68 72 in lb 7 7 8 1 Nem in alternating pattern DETAIL Torque Sequence for Regulator Base Housing Screws 9 A Apply lithium based grease when reassembling Torque to 75 to 80 in Ib 8 4 to 9 0 Nem 16 308647 Ref No 24 str St 6t 114 12 14 15t 16t 16 17 18t 20T Part No 191584 191577 191578 197952 15J923 191579 15J924 191585 15J920 191583 113623 114104 191914 113651 112365 15D092 109213 107079 109450 Parts List Models 238893 238894 248090 and 255072 Description Qty ACTUATOR HO
7. Instructions Parts List S GRACO STAINLESS STEEL WATERBASE COMPATIBLE HIGH PRESSURE Fluid Pressure Regulators t EN For precise downstream pressure and flow control Important Safety Instructions Read all warnings and instructions in this manual Save these instructions See page 2 for List of Models and Table of Contents 06290 Model 238890 Model 238894 238892 air operated spring operated U S Patent No 4942899 06540A PROVEN QUALITY LEADING TECHNOLOGY Table of Contents List of Models 0 eee eee eee 2 Technical Data 0 inn A e eee 20 WaAIMNINGS 2 4 e286 e hee tha eee deere age wed ees 3 Performance Chart 0 ce eee eee eee 21 INStallAtON eaer ea eae wee EAER 6 Dimensional Drawings 02 0 eee eee 23 Operation 2 2 saten yaw g ea daw ae eels tees bie 8 Graco Standard Warranty 200 0005 24 Troubleshooting cece eee ee eee 10 Graco Information 060 cece e eee eee 24 SEMNVICE oya He reae anaE Medien bebe s dee A 11 Parts 238889 238890 238891 and 238892 14 238893 238894 248090 and 255072 16 QAA TBA yes se ieee a a ana dead a ep Glavin oE steam late 18 List of Models Spring Operated Models ne Maximum Fluid Regulated Fluid Paine pesroton Rane frre Sift enue 6000 psi 500 3000 psi 238889 with EZ Flush gauge port plug 41 MPa 414 bar 3 4 21 MPa 34 207 bar 60
8. USING ADAPTER NUT spring retainer HOUSING base for Models or 7 238893 and 238894 1 HOUSING base for Model 248090 1 HOUSING base for Model 255072 1 VALVE HOUSING sst 1 VALVE HOUSING for Model 255072 1 ROD piston for Models 238893 238894 and 248090 ROD piston for Model 255072 PLUNGER spring PLATE backing BASE HOUSING SCREW cap socket head M10 x 1 5x 70 4 SCREW machine 12 DIAPHRAGM regulator TPE cream colored 1 DIAPHRAGM regulator PTFE 1 white 1 SEAT valve 1 O RING packing PTFE 1 BALL for Models 238893 and 238894 1 BALL for Models 248090 and 255072 1 O RING packing PTFE 025 1 O RING packing PTFE 019 1 O RING packing PTFE 013 1 O RING packing PTFE 016 1 Ref No 2107 22 25 28 294 30 31 32 33 34 35t 36t 37 38 39 40 41 42 5 H Se Part No 111858 160062 113654 100326 110341 100403 108190 103656 151519 192194 15J921 180979 238896 107509 15J922 198241 111457 Description Qty SPRING compression 1 SPRING stabilizing GAUGE pressure for Models 238894 and 248090 COVER diaphragm HOUSING diaphragm SCREW machine REGULATOR air PLUG pipe GAUGE pressure air NIPPLE pipe hex NIPPLE reducing 1 4 x 1 8 npt WASHER support WASHER for Model 255072 DIAPHRAGM nylon for Models 238893 238894 and 248090 1 PLUG EZ Flush includes Ref 39 e ee Cees ree Cores Coes Cues Crees Cures Ca
9. ZARD LSH Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury INSTRUCTIONS 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 kink or over bend the hose or use the hose to pull equipment Do not exceed the maximum working pressure of the lowest rated component in your system Do not exceed 6000 psi 41 MPa 414 bar maximum fluid inlet pressure of the regulator or the maximum working pressure of the lowest rated component in your system 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 Always wear protective eyewear gloves clothing and respirator as recommended by the fluid and solvent manufacturer Comply with all applicable local state and national fire electrical and safety regulations 308647 3 A WARNING SKIN INJECTION HAZARD Spray from the gun leaks or ruptured components can inject fluid into your body and cause extremely serious injury including the need for amputation Fluid splash
10. alve housing 5 to 30 to 35 ft lb 41 to 48 Nem 2 Remove the cartridge assembly by loosening the NOTE The valve seat 14 is double sided and valve housing 5 with a 6 mm hex wrench and may be reversed for extended life The o rings pulling the cartridge assembly out of the base 15 18 and 20 and ball 16 must be replaced housing 4 308647 13 Parts Drawing Models 238889 238890 238891 and 238892 238889 with EZ Flush gauge port plug 238891 with EZ Flush gauge port plug 238890 with fluid pressure gauge 238892 with fluid pressure gauge Spring Operated Regulator Spring Operated Regulator 500 to 3000 psi 3 4 to 21 MPa 34 to 207 bar 3000 to 5000 psi 21 to 34 MPa 207 to 345 bar Regulated Fluid Outlet Pressure Regulated Fluid Outlet Pressure 10 ANION NALA z A 7 o 20tA O 18tA SSS 46t mT GA Ses AN Torque to 25 to 30 in Ib 2 8 to 3 4 Nem Torque Sequence for Regulator Base Housing Screws 9 AA Torque to 140 to 160 in lb 16 to 18 Nem AN Torque to 10 to 20 ft lb 14 to 27 Nem VAN Torque to 30 to 35 ft lb 41 to 48 Nem AN Torque first to 20 to 25 ft lb 27 to 34 Nem then to 30 to 35 ft lb 41 to 48 Nem in the sequence shown in DETAIL at left A Apply lithium based grease when reassembling A Apply a fluid compatible grease to aid in reassembly 14 308647 wv Pri OANDOOARWND Part No 238858 191577 191578 191579 191580 191583 113623
11. ary Leaking or dirty seat Replace cartridge or clean seat Large change in inlet pressure Stabilize regulator inlet pressure Pressure drops below Empty clogged supply line Fill flush supply line setting Damaged or clogged air regulator or Clear obstruction in line Service regula line air operated regulator only tor if necessary Using valve beyond its rated flow Install valve for each spray gun or capacity dispensing valve Large change in inlet pressure Stabilize regulator inlet pressure Fluid leaks from spring Loose fluid housing Tighten the four cap screws housing Damaged diaphragm Replace diaphragm Chatter Excessive pressure differential Reduce pump pressure to not more than between pump and gun 2000 psi 14 MPa 138 bar greater than required gun pressure Excessive flow rate Reduce fluid flow through regulator Connect only one spray gun or dispens ing valve to each fluid regulator 10 308647 Service Service Kits For the Fluid Diaphragm Repair Kit order Part 238747 Parts included in this kit are marked with an asterisk for example 7 in the Parts Drawings and Lists on pages 14 and 16 For the Cartridge Repair Kit order Part 238748 for all models except 248090 Parts included in this kit are marked with a dagger for example 3T in the Parts Drawings and Lists on pages 14 and 16 For the Cartridge Repair Kit for 248090 order Part 248098 Parts included in this kit are marked with a
12. ator increase supply air pressure to increase fluid pressure Decrease supply air pressure to decrease fluid pressure Supply air up to 100 psi 0 7 MPa 7 bar See the chart on page 20 for air versus fluid pressure NOTE Air operated regulator Models 238893 and 238894 are provided with an air supply regulator 31 to control the fluid set pressure For increased sensitivity in pressure set point performance an alternative air regulator such as Part 206197 may be used This alternative air regulator uses a sensitive diaphragm design to maintain a higher more accurate air pressure setting 8 308647 2 Adjust the pump air pressure and fluid regulator for the desired spray pattern Use the lowest possible air and fluid pressures for your application For optimum performance the inbound fluid pressure should be at least 500 psi 3 4 MPa 34 bar above the regulated fluid pressure NOTE Do not exceed a 2000 psi 14 MPa 138 bar pressure drop between the regulator inlet and outlet Excessive pressure drop will cause premature regulator component wear For example With 3500 psi 24 5 MPa 245 bar to the regulator the minimum regulated outlet pressure would be 1500 psi 10 5 MPa 105 bar 3 In a circulating system also adjust the back pressure valve K 4 Record all the settings for future reference Cleaning the Regulator Do not allow fluid to settle in the system Flush the regulator whenever the rest of t
13. ckel and cobalt bound tungsten carbide PTFE for all models models ceramic for model 248090 244734 and 255072 only Adjustment tool 6 mm hex wrench 6 mm hex wrench spring operated models Air Requirements for Air Operated Regulators Models 238893 238894 248090 and 255072 The following table shows the approximate air pressure needed to regulate the air operated regulator to a given fluid outlet pressure Regulated Fluid Outlet Pressure Models 238894 248090 Air Pressure and 255072 Model 255072 psi MPa bar psi MPa bar psi MPa bar 28 0 19 1 9 1000 7 69 550 4 40 49 o34 3 4 2000 14 138 1150 8 80 7o 048 48 3000 21 207 1800 12 120 90 o62 62 4000 28 276 2450 17 170 100 0 68 68 4000 28 276 2700 19 190 20 308647 REGULATED outbound FLUID PRESSURE Performance Chart Fluid Pressure Regulators Models 238889 through 238894 and 248090 psi MPa bar 6000 41 414 5000 34 345 4000 28 276 3000 21 207 2000 14 138 1000 7 69 gpm 0 0 5 1 0 1 5 2 0 Ipm 1 9 3 8 5 7 7 6 D FLUID FLOW Key Test Conditions i Regulators tested in oil at 70 F 21 C and at aD 65 cp oi 6000 psi 41 MPa 414 bar inbound fluid pressure 3000 cp oil 308647 21 Notes 22 308647 Dimensional Drawings Models 238889 and 238891 with port plug Models 238890 and 238892 with gau
14. dance 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
15. dure in Adjusting the System Pressure on page 8 308647 11 Service Replacing the Fluid Diaphragms 6 Remove the o ring 17 from the groove in the base housing 4 clean and inspect the base See Fig 3 and follow the steps below For parts that housing and replace if necessary are not called out in Fig 3 see the Parts Drawing on page 14 7 Install a new o ring 17 in the groove in the base housing 4 1 Relieve the pressure and remove the regulator from the fluid line 8 Lightly lubricate the backing plate 8 bore and plunger 7 with a lithium based grease A WARNING 9 Install the new pre assembled diaphragm i nee subassembly into the backing plate 8 To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the NOTE The diaphragms will have a bow in them Pressure Relief Procedure on page 7 before you install them 2 Turn the adjusting screw 10 counterclockwise 10 Align the holes in the diaphragms with the backing until it is loose to fully relieve the spring tension plate 8 3 Remove the four base housing screws 9 from the 11 Install the backing plate diaphragms assembly base housing 4 and pull the base housing free of over the base housing 4 Hold the backing plate the backing plate 8 8 tightly against the base housing and install the four base housing screws 9 4 Remove the diaphragm and valve actuator subassembly 1 7 12 13 and 19 1
16. ed in the eyes or on the skin can also cause serious injury Fluid injected into the skin might look like just a cut but it is a serious injury Get immediate surgical treatment Do not point the gun at anyone or at any part of the body Do not put your hand or fingers over the spray gun tip or extruder gun tip Do not stop or deflect leaks with your hand body glove or rag Always have the tip guard and the trigger guard on the gun when spraying Check the gun diffuser operation weekly Refer to the gun manual Be sure the gun trigger safety operates before spraying Lock the gun trigger safety when you stop dispensing Follow the Pressure Relief Procedure on page 7 if the spray tip clogs and before cleaning checking or servicing the equipment Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn or damaged parts immediately Do not repair high pressure couplings you must replace the entire hose Fluid hoses must have spring guards on both ends to help protect them from rupture caused by kinks or bends near the couplings HALOGENATED HYDROCARBON HAZARD Never use 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or fluids containing such solvents in these regulators In the unlikely event that there is a diaphragm failure and the vent hole in the aluminum spring cap is plugged a serious chemical reaction could occur with the po
17. en Canes for Model 238893 1 O RING packing PTFE 007 for Model 238893 1 RING diaphragm for Model 255072 1 PLUG pressure for Models 248090 and 255072 2 PACKING o ring PTFE 012 for Models 248090 and 255072 2 Included in Fluid Diaphragm Repair Kit 238747 Included in Cartridge Repair Kit 238748 Included in Air Operated Conversion Kit 238749 Included in Cartridge Repair Kit 248098 Included in Diaphragm Housing Repair Kit 16P596 308647 17 18 Parts Drawing Model 244734 AN Torque to 25 to 30 in lb 2 8 to 3 4 Nem AA Torque to 140 to 160 in Ib 16 to 18 Nem AN Torque to 15 to 20 ft lb 20 to 27 Nem A Torque to 30 to 35 ft lb 41 to 48 Nem A First torque to 30 33 in lb 3 4 3 7 Nem in alternating pattern then torque to 68 72 in lb 7 7 8 1 Nem in alternating pattern A Apply lithium based grease when reassembling Torque first to 20 to 25 ft lb 27 to 34 Nem then to 30 to 35 ft lb 41 to 48 Nem in the sequence shown in DETAIL at right Torque to 75 to 80 in Ib 8 4 to 9 0 Nem 308647 244734 with EZ Flush gauge port plug Air Operated Regulator Full Range 100 psi 0 7 MPa 7 bar Maximum Inbound Air Pressure 500 to 4000 psi 3 4 to 28 MPa 34 to 276 bar Regulated Fluid Outlet Pressure ow 15t O lt 20tf O ist A NAG 21t A 5 tA T11373 TAIL Torque Sequence for Regulator Base Housing Screws 9 Ref Part No 191584 191577 197952 191579
18. fter flushing Supply solvent to the system Set pump to the lowest possible pressure and start pump Flush until thoroughly clean Adjust the fluid regulator to the desired setting a Spring Operated Regulators Only Turn the adjustment screw 10 counterclockwise to return to the desired pressure setting b Air Operated Regulator Only Adjust the air regulator to return to the desired fluid pressure setting 308647 9 Troubleshooting NOTE Check all possible solutions in the chart below A WARNING before you disassemble the regulator To reduce the risk of serious bodily injury including skin injection splashing in the eyes or on the skin or injury from moving parts always follow the Pres sure Relief Procedure on page 5 whenever the pump is shut off before installing cleaning adjust ing removing or servicing the valve or any part of the system and whenever you stop dispensing No pressure regulation Damaged diaphragm Replace diaphragm Leaking or dirty seat Replace cartridge or clean seat No fluid flow Damaged valve actuator Replace valve actuator Pressure creeps above Metal chip or contamination Replace cartridge or clean seat area setting between ball and seat Damaged diaphragm Replace diaphragm Damaged o ring or improper seal Replace the o ring under the seat Damaged or clogged air regulator or Clear obstruction in line Service regula line air operated regulator only tor if necess
19. ge spring operated A Height 8 9 in 225 mm B Diameter of base housing 2 65 in 70 mm 3 8 npt outlet port 1 4 npt gauge acre B 06290 1 4 20 UNC mounting holes 1 2 in 12 mm deep both sides Model 238893 with port plug Model 238894 with gauge Models 248090 and 255072 with gauge and Model 244734 1 2 npt inlet and outlet ports air operated air operated l l A Height 10 0 in 254 mm aae a A mann B Diameter of diaphragm cover 7 0 in 179 mm Bp Piemoter or dlaphragmrecvers 7 O IA A ge G gt A ae sa F S p d ee o A S 3 8 npt N A 3 1 2 npt torN I at en a 248090 ee B inlet port A l A 0628 3 8 npt T1372 1 2 npt 1 2 npt for 248090 inlet port 1 4 npt outlet port gauge port 1 4 20 UNC mounting holes 1 2 in 12 mm deep both sides 1 4 20 UNC mounting holes 1 2 in 12 mm deep both sides 308647 23 Graco Standard 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 accor
20. he system is flushed see page 9 Before you flush the system follow the Pressure Relief Procedure on page 7 then completely decrease the regulated fluid pressure See step 1 in Adjusting the System Pressure ait left Before you remove the regulator for thorough cleaning and inspection follow the Pressure Relief Procedure on page 7 Then remove the regulator clean it and inspect all parts Operation Flushing Flush before changing colors before fluid can dry in the equipment at the end of the day before storing and before repairing equipment Flush at the lowest pressure possible Check connectors for leaks and tighten as necessary Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts Record the pressure adjustment setting of the fluid regulator before flushing Shut off the pump and relieve fluid pressure in the system by triggering the gun and opening the back pressure regulator or other bypass valve Never exceed the maximum working pressure of the lowest rated system component Remove the gauge if the flushing pressure will exceed the gauge range 4 Open the fluid regulator fully a Spring Operated Regulators Only Open the fluid regulator by turning the adjusting screw 10 fully clockwise b Air Operated Regulator Only Increase the air regulator setting to fully open the fluid regulator You will have to reset the fluid regulator s pressure setting a
21. k off the function of the regulator could be affected Fig 1 The installations shown in Fig 1 are only a guide for selecting and installing a circulating or direct system they are not actual system designs Contact your Graco distributor for assistance in designing a system to suit your needs NOTE Before you install the regulator thoroughly flush the system to remove metal chips and other contaminants A fluid filter D of 60 mesh or finer should always be installed upstream of the regulator Connections Install the fluid regulator G in the spray gun fluid supply line F as shown in the typical installation drawings on this page Connect only one spray gun or dispensing valve to each fluid regulator 6 308647 Fluid supply container A ae Drain valve 06461 P P Single Direct Spray Station oh P 06462 Apply pipe sealant to the male pipe threads and connect the fluid supply line F to the fluid regulator s 3 8 npt f inlet Connect the line from the gun J to the fluid regulator s 3 8 npt f outlet Install the gauge or plug into the 1 4 npt f gauge port Make sure the direction of fluid flow agrees with the IN and OUT markings on the regulator body Flush the System The regulator was tested in lightweight oil Flush the entire system with a solvent compatible with the fluid being dispe
22. nsed Then test the system Mounting Bracket A Mounting Bracket is available for mounting the regulator Order Part 222515 for the bracket and mounting hardware Installation Grounding the System A WARNING FIRE AND EXPLOSION HAZARD Before operating the fluid pressure regulator ground the system as explained below Pump Use a ground wire and clamp Loosen the grounding lug locknut W and washer X Insert one end of a 1 5 mm2 12 ga minimum ground wire Y into the slot in lug Z and tighten the locknut securely Connect the other end of the wire to a true earth ground Order Part 237569 Ground Wire and Clamp W 0864 Fig 2 Air and fluid hoses Use only electrically conductive hoses Heaters if used See the heater instruction manual Air compressor Follow manufacturer s recommendations Spray gun Ground through connection to a properly grounded fluid hose and pump Fluid supply container Follow your local code Object being sprayed Follow your local code Solvent pails used when flushing Follow your local code Use only metal pails which are conductive placed on a grounded surface Do not place the pail on a nonconductive surface such as paper or cardboard which interrupts the grounding continuity To maintain grounding continuity when flushing or relieving pressure hold a metal part of the spray gun firmly to the side of a grounded metal pail then trigger the gun Press
23. 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 pa
24. rties reconnaissent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les procedures concern es Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call one of the following numbers to identify the distributor closest to you 1 800 328 0211 Toll Free 612 623 6921 612 378 3505 Fax 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 For patent information see www graco com patents Original instructions This manual contains English MM 308647 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 1997 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised April 2012 24 308647
25. ssibility of explosion which could cause death serious injury and or substantial property damage Consult your fluid suppliers to ensure that the fluids used are compatible with aluminum parts TOXIC FLUID HAZARD Graco does not manufacture or supply the reactive chemical components that may be used in this equipment and is not responsible for injury or property loss damage expense or claims direct or consequential that arise from the use of such chemical components 4 308647 Notes 308647 5 Installation M E N Multiple Circulating Spray Station a F Key Air regulator Bleed type master air valve Pump Fluid filter and drain valve Main fluid supply line Gun fluid supply line Fluid regulator with fluid pressure gauge H Fluid pressure gauge Air assisted airless spray gun Back pressure valve Fluid return line Main circulating line uUzZazr acr OMmMoOWY A WARNING Do not use PTFE tape on pipe threads Such use could cause a hazardous condition due to loss of grounding continuity Also if pieces of the tape brea
26. ssure gauge air operated with pressure sensor Model 238889 Model 238891 fluid pressure gauge ports spring operated with spring operated with Model 238893 EZ Flush plug EZ Flush plug air operated with EZ Flush plug Maximum fluid 6000 psi 6000 psi 6000 psi 6000 psi inlet pressure 41 MPa 414 bar 41 MPa 414 bar 41 MPa 414 bar 41 MPa 414 bar Regulated fluid 500 3000 psi 3000 5000 psi 500 4000 psi 500 4000 psi outlet pressure 3 4 21 MPa 21 34 MPa 3 4 28 MPa 3 4 28 MPa range 34 207 bar 207 345 bar 34 276 bar 34 276 bar Maximum inbound 100 psi 100 psi air pressure 0 7 MPa 7 bar 0 7 MPa 7 bar Fluid inlet outlet 3 8 npt f 3 8 npt f 3 8 npt f 1 2 npt f size 1 2 npt f for 248090 Gauge port size 1 4 npt f 1 4 npt f 1 4 npt f 1 4 npt f Fluid pressure 0 3000 psi 0 5000 psi 0 5000 psi gauge Models 0 21 MPa 0 34 MPa 0 34 MPa 238890 238892 0 207 bar 0 345 bar 0 345 bar and 238894 Maximum flow 2 gpm 7 6 lpm 2 gpm 7 6 lpm 2 gpm 7 6 lpm 2 gpm 7 6 lpm in 65 cp material Maximum fluid up to 15 000 cp up to 15 000 cp up to 15 000 cp up to 15 000 cp viscosity Maximum operat 120 F 50 C 120 F 50 C 120 F 50 C 120 F 50 C ing temperature Weight with gauge 7 0 lb 3 2 kg 7 0 Ib 3 2 kg 11 7 Ib 5 3 kg 11 7 Ib 5 3 kg Fluid diaphragms PTFE with TPE PTFE with TPE PTFE with TPE PTFE with TPE backing backing backing backing Wetted parts all 304 316 17 4 passivated SST ni
27. ure Relief Procedure A WARNING SKIN INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally Fluid under high pressure can be injected through the skin and cause serious injury To reduce the risk of an injury from injection splashing fluid or moving parts follow the Pressure Relief Procedure whenever you e Are instructed to relieve the pressure e Stop spraying e Check or service any of the system equipment e Install or clean the spray tips 308647 7 Operation Adjusting the System Pressure A CAUTION e The new system must be cleaned and tested thoroughly before admitting fluid to the regulator to avoid contaminants clogging or damaging the regulator Always use the lowest possible air and fluid pressures for your application High pressures can cause premature spray tip regulator and pump wear NOTES e The fluid pressure regulator controls pressure downstream from its outlet e If you are using an accessory fluid pressure gauge H in Fig 1 relieve the spray gun line pressure after you reduce the regulator pressure to ensure a correct gauge reading 1 Make a note of the proper way to adjust pressure from the following descriptions e On aspring operated regulator turn the adjusting screw 10 counterclockwise to decrease pressure and clockwise to increase pressure to the spray gun or extruder gun e Onan air operated regul
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