Graco 307107N User's Manual
Contents
1. Instructions Parts List gt GRACO STAINLESS STEEL WATERBASE COMPATIBLE 307107N Back Pressure Valve a Used in circulating systems to provide regulated back pressure to the spray gun s and to maintain proper circulating pressure throughout the system For professional use only Model 208997 Series E Stainless Steel Back Pressure Valve 300 psi 2 1 MPa 21 bar Maximum Inlet Pressure 200 psi 1 4 MPa 14 bar Maximum Regulated Pressure ee Important Safety Instructions Read all warnings and instructions in this manual Save these instructions Contents Waning S senesan aaua mew eee ea owe a ee 2 Installation 2 0 es 3 Operation eesdevestecdueteeueen es eseeue eeu 3 SOVICE asr ona carne ata sees ae ee sana hee eee wes 4 PartS ecace bee wa eee eee Pa ee ee be sas eee 5 DIMENSIONS 2 00 ee 6 Technical Data 0c ce 7 Graco Standard Warranty 0200000es 9 Graco Information 0000e eee e eens 10 PROVEN QUALITY LEADING TECHNOLOGY RA EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury 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 i2. ads when installing it to avoid plugging the gauge 12 Lubricate both sides of the spring plate 7 and spring 5 with lithium base grease 13 Lubricate the adjusting screw threads 14 Assemble the remaining parts 15 Tighten the regulator cap screws 1 finger tight then torque them to 120 to 130 in lb 13 6 to 14 7 N m in a criss cross pattern See the TOP VIEW in the parts drawing 16 Install the back pressure valve back in the fluid line 307107N Parts JK13 i A A A 19 A 1 a Ref No 1 CO NOO A3 15 29 h i J 8718A 307107N Operation sealant to threads Apply lithium base See TOP VIEW A Apply anaerobic pipe Torque to 10 12 ft lb 13 5 16 N m grease PTFE side down i Lubricate threads Torque to 15 20 ft lb 21 27 N m Torque screws 1 to 120 130 in lb TOP VIEW ti24721a 13 6 14 7 N m in order shown Part No 101682 111697 104144 160033 187873 188006 188512 172193 186872 171117 187878 164864 171912 171913 209027 101926 157277 Model 208997 Series E Stainless Steel Back Pressure Valve Includes items 1 to 22 Description SCREW soc hd cap 1 4 20 x 5 8 PLUG sq hd pipe 1 4 npt SPRING compression PLATE spring GAUGE 0 to 200 psi 0 to 1 4 MPa O to 14 bar SEAT stainless steel RETAINER diaphragm stainless steel DIAPHRAGM SCREW adjusting GASKET acetal copolymer HOUSING PLATE diaphragm GASKET cellul
3. es 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 proc dures concern es Graco Information For the latest information about Graco products visit www graco com For patent information see www graco com patents TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor 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 307107 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 1974 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revision N October 2014
4. id drain valve to relieve all fluid pres sure having a container ready to catch the drain age Service Procedure NOTE Regular cleaning and inspection of the valve based upon the degree and kind of service is essential 1 Shut off the pump and open the back pressure valve by turning the adjusting screw 13 counterclock wise until no spring pressure is felt Relieve all air and fluid pressures in the system 2 Remove the back pressure valve from the fluid line 3 Disassemble the valve and clean it with a suitable solvent See the parts drawing page 5 4 Carefully inspect the diaphragm 12 for cracks or other damage Replace if necessary 5 Check for chips or dirt that could puncture the mem brane or diaphragm before assembling the valve 6 Check if the gasket 17 needs to be replaced 7 Lubricate the threads of the diaphragm retainer 11 8 Install the diaphragm parts onto the valve housing 15 Torque the retaining nut 20 to 10 to 12 ft lb 13 5 to 16 N m 9 Carefully inspect the seat 10 for damage wear or dirt These things could cause the regulated pres sure to creep Replace the seat if necessary 10 Replace the seat gasket 14 when replacing the seat 10 Torque the seat to 15 to 20 ft lb 21 to 27 N m 11 To remove or install the gauge 8 use the wrench on the square portion of the gauge stud only A N CAUTION Use thread sealer sparely on the gauge s male thre
5. medy 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 parti
6. mmediately Do not exceed the maximum inlet pressure of the lowest rated system component The maximum inlet pressure of this equipment is 300 psi 2 1 MPa 21 bar Follow the Pressure Relief Procedure on page 4 if the spray tip clogs and before cleaning checking or servicing the equipment Do not stop or deflect leaks with your hand body glove or rag Be sure all equipment safety devices are operating properly before each use 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 manufacturers warnings Always wear protective eyewear gloves clothing and respirator as recommended by the fluid and solvent manufacturer Wear hearing protection when operating this equipment Comply with all applicable local state and national fire electrical and safety regulations 307107N Operation Installation KEY A Fluid supply line E Adjusting screw B Air spray gun F Back pressure valve C Fluid pressure regulator G Fluid return line D Air supply line i E eS SE i oa B ay A gt O a5 m E H nis q i A ed N Connect the line to the 1 1 4 in npt f inlet and outlet Make sure the flow direction agrees with the IN and OUT markings on the valve body Handle the back pressure valve with care to avoid dam l aging the diaphragm The back pressure valve is adjustable to control the fluid pressures in a circulati
7. nce 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 re
8. ng system from 5 to 200 psi 0 035 to 1 4 MPa 0 35 to 14 bar 8719A Installing the Back Pressure Valve If more than one spray station is used install the back pressure valve in the fluid supply line after the last sta tion This will help maintain proper circulating pressures in the system Install the back pressure valve in the spray gun return line See Fig 1 Operation NOTE The back pressure valve controls pressure Adjust the pump pressure and back pressure valve for ahead of its intake the best spraying combination and for proper circulation of fluid Turn the adjusting screw clockwise to increase pressure and counterclockwise to decrease pressure Flush the back pressure valve with a compatible solvent whenever the rest of the system or unit is being flushed Open the back pressure valve before flushing by turning the screw counterclockwise 307107N 3 Operation Service Pressure Relief Procedure PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally To reduce the risk of an injury from accidental spray from the gun 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 nozzle 1 Shut off the pump 2 Open the dispensing valve if used 3 Open the flu
9. ose fibre GASKET cellulose fibre CAP NUT retaining O RING Thiokol Qty ee h ek SN ee ee b h b eS Keep these spare parts on hand to reduce down time Operation Dimensions 4 in 102 mm diameter 7 29 In 184 mm 1 1 4 npt f inlet and outlet 8717A 307107N Operation Technical Data Stainless Steel Waterbase Compatible Back Pressure Valve Maximum inlet pressure 300 psi 1 4 MPa 14 bar Regulated pressure range 5 200 psi 0 035 1 4 MPa 0 35 14 bar Inlet and Outlet size 1 1 4 in npt f Gauge port size 1 4 in npt f Wetted parts 304 amp 316 stainless steel celcon Diaphragm nylon fabric base with impregnated buna N and material side is PTFE coated Weight Canadian Registration Number CRN Alberta 0C4155 2 Ontario 0C4784 5 Thiokol is a registered trademark of the Thiokol Chemical Corporation 307107N 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 accorda
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