Graco 306563K User's Manual
Contents
1. 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 im proper design manufacture installation operation or maintenance of structures accessories equipment or materials not sup plied 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 PUR POSE 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 pe2. 03831 only STEM valve Model 205425 only HANGER diaphragm SPRING helical compression Model 204500 only CAP spring Model 204500 only DIAPHRAGM GASKET cellulose fiber GASKET cellulose fiber WASHER plain Recommended tool box spare parts Keep on hand to reduce down time Dimensions m 5 5 140 mm gt 7O 3 8 NPSM M OUTLET Weight Model 204500 4 Ib 1 7 kg Model 203831 5 Ib 2 3 kg Model 204501 5 Ib 2 3 kg Model 205425 5 lb 2 3 kg T e 15 8 mm 3 8 NPSM F INLET Qty i mh mh mh i mh i mk mh mk oa oa h ee mh mh mb h 306563 11 The Graco Warranty and Disclaimers WARRANTY Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use 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 defec tive This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written rec ommendations 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
3. 5 101180 101176 150670 157277 160741 160745 161349 161351 166617 160034 161889 161357 161358 Model 204500 11 25 285 8 mm Models 203831 204501 amp 205425 9 75 247 7 mm Parts Description Qty SCREW soc hd cap 1 4 20 x 5 8 6 PLUG pipe hex soc 3 8 npt 1 RACE thrust adjusting nut 1 BEARING needle thrust 1 GAUGE fluid pressure 0 30 psi 0 2 bar Model 204500 only GAUGE fluid pressure 0 200 psi 0 13 bar Model 204501 only GAUGE fluid pressure 0 60 psi 0 4 bar Models 205425 amp 203831 only GASKET copper SEAL o ring thiokol NUT lock diaphragm TUBE gauge mounting NUT spring adjusting SPRING flat compression Models 203831 amp 205425 only SPRING helical compression Model 204500 only SPRING helical compression Model 204501 only UNION 45 swivel 3 8 npt m x 3 8 npsm f BUSHING fluid outlet BODY regulator Ref No 27 28 29 30 31 32 33 34 Part No 171194 162485 164863 164864 171198 204522 204523 206523 212030 206920 204524 205183 206921 153996 166618 172193 171912 171913 171193 Description CAP regulator ADAPTER 3 8 npt x 3 8 npsm SCREW adjusting PLATE diaphragm GASKET acetal KEY regulating removable SEAT valve Models 203831 amp 204501 only SEAT valve Model 204500 only SEAT valve Model 205425 only STEM valve Model 204500 only STEM valve Models 204501 amp 2
4. Instructions Parts List GRACO LOW PRESSURE Fluid Regulator asa For accurate positive control of fluid pressure to one spray gun dispensing valve or atomizing head For professional use only 250 psi 18 bar 1 8 MPa Maximum Inbound Pressure Important Safety Instructions Read all warnings and instructions in this manual Save these instructions Model 203831 Series H 0 60 psi 0 4 bar 0 0 4 MPa Regulated Pressure Gives positive control of fluid pressures in most normal direct supply and circulating spray systems Model 204500 Series H 0 15 psi 0 1 bar 0 0 1 MPa Regulated Pressure Has a counterbalance spring for positive closure at extremely low pressures Model 204501 Series H 20 160 psi 1 5 11 bar 0 15 1 1 MPa Regulated Pressure Has a heavier spring for precise control of fluid in the regulated range Model 205425 Series H 0 60 psi 0 4 bar 0 0 4 MPa Regulated Pressure has a large valve for more viscous fluids Not intended for use with standard paints and lighter viscosity fluids as these fluids lower the sensitivity of this regulator HOO3 PROVEN QUALITY LEADING TECHNOLOGY Table of Contents WAIMIAGS oo iced fl ae Sol e Maree ve eel Pe Denia aed 2 Serice oia inde Heide hut tain e Sul n a E 8 Installation e natenn g ete a E E EEEa 5 PAS e E a E OENE EIA gee yee dae 10 Operation vs piesiniai Peas were ae a 6 Warranty oaaae EAEE NEE any ahah ls wate aed 12 Troubleshoo
5. bove 66 C 150 F or below 40 C 40 F Wear hearing protection when operating this equipment Do not move or lift pressurized equipment Comply with all applicable local state and national fire electrical and safety regulations 306563 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 splashed in the eyes or on the skin can also cause serious injury Fluid injected into the skin is a serious injury The injury may look like just a cut but it is a serious injury Get immediate surgical attention 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 spraying Follow the Pressure Relief Procedure for your equipment if the spray tip clogs and before clean ing 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
6. ic hazards of the fluid you are using 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 306563 Installation KEY A Regulator C B Dispensing Unit C Gauge D Regulator Inlet G E Regulator Outlet F Air Regulator A G Supply Line D H Accessory Outlet F 03363 Fig 1 TYPICAL INSTALLATION e Mount the regulator in an upright position so that the gauge C can be easily read A CAUTION e f turning the gauge reapply sealer to the threads and use a wrench on the inlet stud to turn gauge Before installing the regulator check the tightness of Regulator inlet D is 3 8 npsm f swivel and outlet the screws 1 Refer to Fig 3 for the tightening E is 3 8 npsm m rigid sequence and the torque value If the regulator leaks during operation check and torque the screws again e Connect a fluid hose to regulator outlet E and spray gun Connect an air atomizing hose to the In order to prevent damaging the regulator blow out spray gun and air regulator F See Fig 1 and flush the supply line to remove any particles e To mount the regulator in a circulating system su
7. ocked fluid supply line or valve Flush supply line and valve service if necessary Using regulator beyond capacity Do not use regulator beyond its rated capacity 306563 7 Service Regulator Disassembly Shut off pump close shutoff valve and relieve pressure in regulator by triggering the spray gun Remove the regulator from the system 1 Using the hex end of key 25 adjust screw 20 all the way counterclockwise to relieve regulator spring tension 2 Remove outlet bushing 15 and counter balance spring 29 Model 204500 only from the body 3 Unscrew valve stem 27 from diaphragm hanger 28 with adjusting key See Fig 3 4 Remove screws 1 regulator cap 17 spring adjusting screw 20 spring 13 and spring cap 30 Model 204500 only 5 Lift diaphragm 31 and hanger from body Disas semble the hanger and diaphragm only if dam aged 6 Unscrew valve seat 26 from body with a 9 16 socket wrench See Fig 3 7 Thoroughly inspect all parts and inspect for wear or damage replacing as necessary Use special care in handling the valve stem and seat to avoid damaging the hard carbide parts Regulator Reassembly Reassemble regulator in reverse order of Disassem bly When inserting the diaphragm and hanger be sure that all surfaces are clean and smooth Any dirt or roughness could damage the diaphragm Note Hold hanger 28 and valve stem 27 in place with a finger so
8. or every four weeks or as necessary for the amount and type of use 1 Clear regulator of paint or other fluid by blowing back fluid through the gun and hose 2 Shut off supply pump and relieve line pressure by opening back pressure regulator or other by pass valve 3 Open regulator valve by screwing the threaded portion of key 25 as far as possible into the cap See Fig 2 4 Loosen air cap ring of spray gun three turns hold a rag firmly over the end of the cap and trigger the gun Air will force fluid back through the gun hose and regulator 5 After blow back remove the adjusting key 25 Note Do not use the threaded end of key 25 to adjust pressure 6 Flush regulator until clean 25 IE RS ee eed Blow Back Position Regulating Position 03369 Fig 2 Problem Troubleshooting Cause Solution No pressure regulation Damaged diaphragm Replace diaphragm 31 Fluid leaks under cap Loose cap worn gasket Tighten screws 1 replace gasket 32 Damaged diaphragm Replace diaphragm 31 Pressure creeps above setting Loose cap Tighten screws 1 Worn gasket Replace gasket 32 Damaged diaphragm Replace diaphragm 31 Worn or held open fluid valve Flush regulator replace fluid valves 26 amp 27 if worn excessively Pressure drops below setting Loose cap Tighten screws 1 Worn gasket Replace gasket 32 Bl
9. pply line G install an accessory outlet H One e Install regulator A in fluid supply line as close as outlet H and air regulator F are required for each possible to spray gun or dispensing valve B for spray gun The accessory outlet Part No 204819 easy operator control may be ordered separately 306563 5 Operation A WARNING To reduce the risk of component rupture which can cause a fire or explosion and result in serious bodily injury including splashing in the eyes never exceed 250 psi 18 bar 1 8 MPa Maximum Inbound Fluid Pressure to this regula tor A CAUTION Do not pressure test the regulator with air use solvent Air may cause leaks between the fluid seals and result in fluid leaks during normal operation If the rest of the system must be pressure tested with air loop past the regulator during the test 1 Insert hex end of key 25 in adjusting screw 20 and turn counterclockwise until spring tension is relieved See Figs 2 and 3 2 Start pump and open shutoff valve of outlet H to admit fluid to regulator Turn key 25 clockwise until desired fluid pressure shows on gauge A CAUTION Do not exceed the Regulated Pressure specification of your regulator Pressures higher than specified can damage the gauge Note When reducing pressure relieve pressure in gun and supply line to ensure a correct gauge reading 6 306563 CLEANING THE REGULATOR Note Flush the regulat
10. rson or prop erty 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 assis tance in making any claim for breach of these warranties For Sales to Canadian Customers Except as expressly stated herein Graco makers no representations warranties or conditions express implied or collateral con cerning any goods or services sold and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation warranty or condition of any kind whether arising by operation of law or otherwise including but not limited to WARRANTIES OF MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE LIMITATION OF LIABILITY In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equip ment hereunder or for 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 other
11. that the valve stem is correctly lined up with the valve seat 26 The hanger should be in line with one set of holes and the nut should be torqued to 20 ft lb 27 Nem Turn the valve stem snugly against the seat and then back off 1 2 turn on model 204500 and 3 4 turn on other mod els to set valve clearance When installing the cap 17 line up finger of spring adjusting nut 12 with the groove in the cap 17 Torque the six screws 1 evenly to 120 130 in Ib 13 6 14 7 Nem three times consecutively in the order shown in the TOP VIEW to compensate for diaphragm relaxation See Fig 3 Note If further service is needed see notes on lu brication thread sealant and torque values in Fig 4 8 306563 See TOP VIEW for tightening sequence A Lubricate with oil A Lubricate with grease Torque to 20 ft lb 27 Nem Hanger must be parallel to diaphragm holes A A Torque to 120 130 in Ib 13 6 14 7 Nem 1 4 6 TOP VIEW Fig 3 Notes 306563 9 Parts A See torque sequence in Fig 3 A Lubricate with grease ZA PTFE side down A Apply sealant to threads JE ZA Torque to 70 80 in Ib 8 9 Nem ra ZA Lubricate with oil 21 A N Torque to 30 35 ft lb 41 47 Nem 03374 Fig 4 10 306563 Ref ahwN 15 16 Fig 5 Part No 101682 101754 101971 101972 18787
12. the couplings MOVING PARTS HAZARD sti Moving parts can pinch or amputate your fingers e Keep clear of all moving parts when starting or operating the pump e Before checking or servicing the equipment follow the Pressure Relief Procedure for your sys tem to prevent the equipment from starting unexpectedly 306563 3 4 A WARNING FIRE AND EXPLOSION HAZARD Improper grounding poor ventilation open flames or sparks can cause a hazardous condition and re sult in a fire or explosion and serious injury e If there is any static sparking or you feel an electric shock while using this equipment stop spray ing immediately Do not use the equipment until you identify and correct the problem Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed Keep the spray area free of debris including solvent rags and gasoline Before operating this equipment electrically disconnect all equipment in the spray area Before operating this equipment extinguish all open flames or pilot lights in the spray area Do not smoke in the spray area Do not turn on or off any light switch in the spray area while spraying or while operating if fumes are present Do not operate a gasoline engine in the spray area 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 specif
13. ting m userei rarus eai l eee ees 7 Graco Phone Number 00eeeeeae 12 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 e NA instructions A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury INSTRUCTIONS 2 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 Check equipment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure stated on the equipment or in the Technical Data for your equipment Do not exceed 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 Tech nical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Handle hoses carefully Do not pull on hoses to move equipment Route hoses away from traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures a
14. wise Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call to identify the distributor closest to you Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 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 Original instructions This manual contains English MM 306563 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 1996 Graco Inc is registered to ISO 9001 www graco com Revised 01 2010 12 306563
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