Graco 307628S User's Manual
Contents
1. for connecting the valve to a compression fitting The other end has a compression nut for connecting the valve to tubing Tubing Selection Tubing material hardness surface finish and wall thickness must be considered to ensure the proper installation and operation of the ball valves These ball valves are recommended for use with either carbon steel or stainless steel tubing The tubing outer surface should be free of scratches and the tubing ends should always be deburred to prevent leakage or damage to the ferrules during installation To ensure a leak free installation the tubing must be softer than the ferrules in the ball valve fitting Therefore the tubing must meet the following material specifications Tubing Material Specifications 1 Carbon Steel Tubing High quality soft annealed seamless carbon steel hydraulic tubing ASTM A 179 or equivalent hardness of Rb 72 or less 0 035 in 20 ga minimum recommended wall thickness 2 Stainless Steel Tubing Fully annealed type 304 316 etc seamless or welded and drawn stainless steel hydraulic tubing ASTM A 269 ASTM A 213 or equivalent hardness of Rb 80 or less 0 035 in 20 ga minimum recommended wall thickness Installation NOTES e This procedure applies to ball valves that have compression nuts or compression fittings Letters in parentheses in the text refer to Figs 1 and 2 The valves are shipped fully assembled with the compression nut finger t2. Alberta 0C4155 2 Ontario 0C4874 5 4 307628 Notes 307628 5 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 by an authorized Graco distributor 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 accordance 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 dis
3. the equipment daily Repair or replace worn or damaged parts immediately Never exceed the recommended working pressure of the lowest rated system component This equipment has a maximum fluid working pressure of 35 bar 3 5 MPa 500 psi Use only fluids and solvents that are compatible with the equipment wetted parts See the Technical Data sections of all the equipment manuals Read the fluid manufacturer s warnings Always wear protective eyewear gloves clothing and respirator as recommended by the fluid and solvent manufacturers Comply with all applicable local state and national fire electrical and other safety regulations 2 307628 General Information Ball Valve Applications Models 237528 through 237535 and 239079 have both ends threaded for pipe connections Models 237538 237539 and 237540 have a compression nut on one end for connecting the valve to tubing The other end is threaded for pipe connection Models 237541 and 238143 have a compression nut on one end for connecting the valve to tubing The other end is threaded for pipe connection These valves also include a jam nut to use if mounting the valve on a panel Model 237537 has compression nuts on both ends for connecting the valve to tubing Model 237536 has a 1 in length of tubing on one end for connecting the valve to a compression fitting The other end is threaded for pipe connection Model 237542 has a 1 in length of tubing on one end
4. tight Model 237537 has a compression nut on each end 2 Insert the tubing into the compression nut A and adapter B On Model 237537 only insert another length of tubing into the second compression nut D and housing C See Fig 2 3 Be sure the tubing seats firmly on the shoulder Tighten the compression nut s until finger tight 4 While holding the adapter B with a wrench tighten the compression nut A 1 turn with another wrench On Model 237537 only tighten the second compression nut D the same amount but hold the housing C with a wrench while tightening NOTE When installing the ball valves on tubing with a hardness close to the maximum recommended more force is required to tighten the nut than the full 1 turn specified above Be sure that the nut is tightened sufficiently Retightening a Tube Fitting Tube fittings can be disconnected and retightened To retighten tube fittings insert the tubing into the adapter or housing until the ferrule seats on the shoulder Tighten the nut to finger tight Then using a wrench tighten the nut to its original position plus 1 flat Technical Data Data 35 bar 3 5 MPa 500 psi 316 Series Stainless Steel PTFE Models 237528 237529 237530 237531 237532 237533 237534 237535 237536 237537 237538 237539 237540 237541 237542 237543 and 239079 Category Maximum fluid working pressure Wetted parts Canadian Registration Number CRN
5. GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 www graco com PRINTED IN U S A 307628 January 1983 Revised April 2001 6 307628
6. INSTRUCTIONS PARTS LIST 5 307628 A This manual contains important GRACO Rev S e warnings and information READ AND KEEP IT FOR REFERENCE First choice when quality counts INSTRUCTIONS 316 Series Stainless Steel Closed Cavity Low Pressure Ball Valves 500 psi 35 bar 3 5 MPa Maximum Fluid Working Pressure NOTE npsm threaded ends meet SAE J516 fitting recommendations Refer to page 2 for Table of Contents To T a D SA 7 hie through PA QS Bl N gt SS SER N SO 237535 and Models QJ 237541 239079 238143 Model 237542 List of Models Model Series Thread N 1 4 npt m x 1 4 npt m 7 u 1 4 npt m x 3 8 npsm m Se 237530 3 8 npt m x 1 4 npt m ne 237536 C 3 8 O D tube end x 3 8 npsm m 237537 3 8 tube fitting both ends 237538 3 8 tube fitting x 3 8 npt m 237539 3 8 tube fitting x 3 8 npsm m 237540 1 2 tube fitting x 3 8 npsm m 237541 1 2 tube fitting x 3 8 npsm m 237542 C 3 8 O D tube end x 238143 B 3 8 tube fitting x 3 8 npsm m 239079 B 1 4 npt f x 1 4 npt m Special order 3 8 npt m x 3 8 npt m GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1994 GRACO INC Graco Inc is registered to I S EN ISO 9001 Table of Contents List of Models c0ccc cence nun nn nun nun 1 Installation 42 2 re a a aa 3 Warnings 4 2 2 a en en 2 Models 237537 through 237542 General Information ooccoococcoccn o
7. ight CAUTION Do not disassemble the valve before installing it on the tubing as this may allow dirt to get in between the ferrules resulting in leakage When installing the valve near a bend in the tubing allow a sufficient straight length of tubing to ensure that the tubing end will seat firmly on the shoulder in the adapter or housing See Fig 1 Model L1 L2 238143 15 16 3 4 237537 15 16 3 4 237538 15 16 3 4 237539 15 16 3 4 237540 1 3 16 31 32 237541 1 3 16 31 32 237542 15 16 L1 Recommended straight length of tubing required L2 Absolute minimum straight length of tubing required E L i B 02726 Fig 1 307628 3 Installation A 7 Se A7 Model 237537 shown B ay Fig 2 Models 237536 through 237542 and 238143 Only 1 Be sure the compression nut A is finger tight 2 Insert the 3 8 in O D tube end of the valve into the compression fitting Make sure the tubing seats firmly on the shoulder Tighten the compression nut finger tight 3 While holding the adapter B with a wrench tighten the compression nut 1 1 4 turns with another wrench 4 Refer to the note at the end of All Other Models on this page for additional tightening and retightening information All Other Models NOTE This procedure applies only to models with compression nuts or fittings 1 Be sure the compression nut A is finger
8. o 3 and 238143 Ones toda tardas 4 Ball Valve Applications oo ooo 3 All Other Models ococococococccco o 4 Tubing Selection eii is 3 Retightening a Tube Fitting 4 Technical Data coocococcccocnnos 4 Graco Standard Warranty oooooooooooo 6 Graco Phone Number 2 00000000005 6 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 44 WARNING EQUIPMENT MISUSE HAZARD Spray from the gun hose leaks or ruptured components can splash fluid in the eyes or on the skin INSTRUCTIONS and cause serious injury RI CH To reduce the risk of splashing follow the pressure relief procedure for your equipment before removing the valve Do not stop or deflect fluid leaks with your hand body glove or rag Equipment misuse can cause the equipment to rupture malfunction or start unexpectedly and result in serious injury This equipment is for professional use only Read all instruction manuals warnings tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor Do not alter or modify this equipment Use only genuine Graco parts and accessories Check
9. onable 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 parties 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 Phone Numbers TO PLACE AN ORDER contact your Graco distributor or call one of the following numbers to identify the distributor closest to you 1 800 367 4023 Toll Free 612 623 6921 612 378 3505 Fax All information illustrations and specifications in this document are based on the latest product information available at the time of publication The right is reserved to make changes at any time without notice Sales Offices Minneapolis Detroit International Offices Belgium Korea Hong Kong Japan
10. tributor 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 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 reas
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