Wafer Check Valve-2
Contents
1. S6 Screw driver Bolt M6 M8 Protective gloves Safety goggles lt Disassembly gt 1 Drain the fluid completely from the pipe line 2 Loosen the connecting bolts and nuts and remove the valve from pipe line 3 Nominal size80 200mm Loosen the Bolt 6 by using an allen wrench and remove the stopper 3 with spring 8 from the body 1 Nominal size250 300mm Loosen the Bolt 6 by using a socket wrench and remove the stopper 3 with spring 8 from the body 1 Only for spring type 4 Loosen the plug 5 by using screw driver and remove it 5 Thrust the bolt M8 to the threaded hole of shaft 4 and pull out the shaft 4 from the body 1 6 Remove the Disc 2 from the body 1 i A T Avoid damaging the O ring and any other part of the valve when installing or removing the O ring Caution i lt Assembly gt 1 The procedure of assembly is the almost reverse of its disassembly lt Refer to the following picture for the direction of spring messoseseesssseseesssesosesseessssssessssssssessesssssssessssso sooesooosooosooesooooooesocosoosooossoosooessoosooesooosooosososeoosocesooosooesooesocosocesoossooesocosoosoooosoossooesooseoe Check whether the spring isn t distorted F K pa ew e ew ew we eeseeccososooosooeoooodoos Check whether the spring _ lis installed correctly E Cross section Wafer Check2. ASAHI AV VALVES Installation Operation and Maintenance Manual Wafer Check Valve User s Manual Contents 1 Be sure to read the following description of our product warranty E A P ET E E EE 1 2 General operating instructions Bak TE TEE DETEN EAEN 2 3 General instructions for transportation unpacking and SLOLA SE nnn 3 4 Name of parts RAO E AA TOOT ERE COTTE RETR ET CERTET EERE ETRE EP ER CE PERSE CORR AET A 4 5 Comparison between working temperature and pressure een 5 6 Minimum Seal performance 5 T Installation procedure nnn 6 8 Disassembling method for replacing parts g 9 Inspection items orem 9 10 Troubleshooting 9 11 Handling of residual and waste materials sacs awa a TERRAE OR 9 ASAHI AV VALVES Wafer Check Valve ASAHI AV VALVES Installation Operation and Maintenance Manual This User s Guide contains very important information for the proper installation maintenance and safe use of the ASAHI AV product store in an easily accessible location lt Warning amp Caution Signs gt A This remark expresses the user to take caution due to the potential for serious injury or death Warning Ay This remark expresses the user to take caution due to the potential for damage to the valve if used in such Caution a Manner lt Prohibition amp Mandatory Action Signs gt Prohibition When operating the valve this remark indicates an action that should not be taken Mandatory a
3. Valve eee VOW nna Qe ASAHI AV VALVES Installation Operation and Maintenance Manual 9 Inspection items A T Perform periodic maintenance Leakage may develop due to temperature changes or changes with time Caution during prolonged storage rest or operation O Inspect the follow items Check for any flaw crack or deformation on the outside Check whether fluid leaks to the outside Check whether tightness of bolt nut 10 Troubleshooting The disc contacts to the pipe inside Check the pipe inside diameter diameter Refer to page 6 Install the valve in the correct direction Refer to page 6 Check for the minimum sealing pressure Refer to page5 The valve does not work The direction of the valve is wrong The minimum sealing pressure is low The Fluid is leaking past the fully ae closed position O ring is worn or damaged Replace the O ring Refer to page 8 Solid particles have lodged in the Remove the solid particles from the valve valve and clean up the valve O ring is worn or damaged Replace the O ring Refer to page 8 Outside leakage was occurred Tightness of bolts and nuts Retighten the bolts and nuts 11 Handling of residual and waste materials A Make sure to consult a waste treatment dealer to dispose of the valves Warning Poisonous gas is generated when the valve is burned improperly Wafer Check Valve 9 ASAHI AV VALVES Installatio
4. ain type Wafer Check Valve 4 ASAHI AV VALVES Installation Operation and Maintenance Manual 5 Comparison between working temperature and pressure Nominal size 80 200mm 3 8 Nominal size 250 300mm 10 12 1 0 10 2 150 1 0 10 2 150 0 5 5 1 70 0 5 5 1 70 Warking pressure MPa kgf cm2 PSI Warking pressure MPa kgf cm2 PSI 0 0 0 0 20 20 40 60 80 100 120 5 70 105 140 175 210 250 Temperature C F 5 70 105 140 175 210 250 20 20 40 60 80 100 120 20 0 20 40 60 80 100 120 5 30 70 105 140 175 210 250 Temperature C F 5 30 70 105 140 175 210 250 20 0 20 40 60 80 100 120 6 Minimum seal performance Water Pressure at R T lt Standard gt Unit kPa gf em PSI Vertical Piping Horizontal Piping Shut the Disc Shut the Disc 21 0 210 0 3 0 0 7 7 0 0 1 21 0 210 0 3 0 0 07 0 7 0 01 Unit kPa gf cem PSI Vertical Piping Horizontal Piping Shut the Disc Shut the Disc 7 0 70 0 1 0 0 7 7 0 0 1 7 0 70 0 1 0 0 07 0 7 0 01 Data mentioned in the table above is reference only lt Spring Type gt Unit kPa gf cm PST Vertical Piping Horizontal Piping Shut the Disc Shut the Disc pm 3 21 0 210 0 3 0 1 4 14 0 0 2 21 0 210 0 3 0 0 07 0 7 0 01 Unit kPa gf cem PSI Vertical Piping Horizontal Pip
5. arranty period ends shall be charged to the customer The warranty does not cover the following cases 1 Using our product under any condition not covered by our defined scope of warranty 2 Failure to observe our defined precautions or instructions regarding the construction installation handling maintenance or servicing of our product 3 Any inconvenience caused by any product other than ours 4 Remodeling or otherwise modifying our product by anyone other than us 5 Using any part of our product for anything other than the intended use of the product 6 Any abnormality that occurs due to a natural disaster accident or other incident not stemming from something inside our product Wafer Check Valve 1 ASAHI AV VALVES Installation Operation and Maintenance Manual 2 General operating instruction A Gb Using a positive pressure gas with our plastic piping may pose a dangerous condition due to the 3 Warning repellent force particular to compressed fluids even when the gas is under the same pressure as water Therefore be sure to take the necessary safety precautions such as covering the piping with protective material For inquiries please contact us For conducting a leak test on newly installed piping be sure i to check for leaks under water pressure If absolutely necessary to use gas in testing please consult i your nearest service station beforehand i AN S Do not step on the valve or apply excessive we
6. ction When operating the valve this remark indicates mandatory actions that must be adhered to Always observe the specifications of and the precautions and instructions on using our product We always strive to improve product quality and reliability but cannot guarantee perfection Therefore should you intend to use this product with any equipment or machinery that may pose the risk of serious or even fatal injury or property damage ensure an appropriate safety design or take other measures with sufficient consideration given to possible problems We shall assume no responsibility for any inconvenience stemming from any action on your part without our written consent in the form of specifications or other documented approval The related technical documents operation manuals and other documentation prescribe precautions on selecting constructing installing operating maintaining and servicing our products For details consult with our nearest distributor or agent Our product warranty extends for one and a half years after the product is shipped from our factory or one year after the product is installed whichever comes first Any product abnormality that occurs during the warranty period or which is reported to us will be investigated immediately to identify its cause Should our product be deemed defective we shall assume the responsibility to repair or replace it free of charge Any repair or replacement needed after the w
7. ight on valve It can be damaged i Caution Keep the valve away from excessive heat or fire It can be damaged or destroyed i Operate the valve within the pressure Vs temperature range i The valve can be damaged by operating beyond the allowable range i Allow sufficient space for maintenance and inspection Select a valve material that is compatible with the media refer to CHEMICAL RESISTANCE ON ASAHI AV VALVE Some chemicals may damage incompatible valve materials i Do not use the valve on condition that fluid has crystallized The valve will not operate properly i Keep the valve away from places of direct sunlight water and dust Use cover to shield the valve i The valve will not operate properly i Perform periodic maintenance Leakage may develop due to temperature changes or changes i with time during prolonged storage rest or operation i Use the valve at a pressure exceeding the minimum operating differential pressure i Check the effective head Be sure to use caution when opening the drain plug as any fluid remaining in the pipeline will escape from this point i When closing the drain plug the sealing torque should be about 5 N m 44 Ib inch i Wafer Check Valve 2 ASAHI AV VALVES Installation Operation and Maintenance Manual 3 General instructions for transportation unpacking and storage A SO In suspending and supporting a valve take enough care and do not stand
8. ing Shut the Disc Shut the Disc 7 0 70 0 1 0 1 4 14 0 0 2 7 0 70 0 1 0 0 07 0 7 0 01 Data mentioned in the table above is reference only Wafer Check Valve 5 ASAHI AV VALVES 7 Installation procedure Warning Caution Installation Operation and Maintenance Manual Ay S In suspending and supporting a valve take enough care and do not stand under a suspended valve Be sure to conduct a safety check on the machine tools and motor driven tools to be used before beginning work Wear protective gloves and safety goggles as fluid remains in the valve You may be injured it too much Excessive tension may damage it Do not use the valve for the pulsating fluid Do not mount valve directly on pump outlet Av S When installing a pipe support by means of a U band or something similar take care not to fasten When installing pipes and valves ensure that they are not subjected to tension compression bending impact or other excessive stress The valve is applicable to both types vertical and horizontal piping In the case of vertical piping use the valve in applications where the fluid travels upwards Take care to properly install the valve by aligning flow direction arrow with intended direction of flow Arrow Pa A y 2 y Direction flow Horizontal piping Care must be used during piping installat
9. ion to ensure that the pipe inside diameter of the downstream piping is larger than size D so that the valve disc does not contact piping in any setting Nominal size Diameter D 3 100mm 4 125mm 3 150mm 6 200mm 8 250mm 10 300mm 12 67mm 2 64 100mm 3 94 113mm 4 45 146mm 5 75 194mm 7 6 241mm 9 49 287mm 11 3 Use flat faced flanges for connection to AV Valves Ensure that the mating flanges are of the same standards Direction flow Vertical piping Q a Be sure to use bolts nuts and washers and tighten them to specified torques The gasket is unnecessary The O ring A carries out the role of the gasket Wafer Check Valve ASAHI AV VALVES Installation Operation and Maintenance Manual Torque wrench Spanner wrench Bolt Nut Washer For many flanges specification Procedure 1 Install the valve between flanges after extending the fields of flanges fully 2 Insert bolts set nuts and washer and tighten the bolts and nuts temporarily by hand When installing a valve refer to the following picture for the detail Ly iar Flange ae 2 re By l fay I oe i ji l j lt n A S D no f Si e Ly ee ri Hl y RUNG cae a i r Pe Joo Saen Val 3 s bo ETE Ea A ve or E a ai at a S g
10. n Operation and Maintenance Manual Wafer Check Valve ASAHI AV VALVES Distributor Asahi Organic Chemicals Industry s homepage http www asahi yukizai co jp en Information in this manual is subject to change without notice 2014 5 Wafer Check Valve
11. t z a A d The parallelism and axial misalignment of the flange surface should be under the values shown in the following table to prevent damage the valve A failure to observe them can cause destruction due to stress application to the pipe mas mm inch i Nom Size Parallelism l ein ECE Axial misalignment Parallelism 80mm OO mE 1 00 04 oF 0 080003 03 sa aon 3 Using a torque wrench tighten the bolts and nuts gradually to the specified torque in a diagonal manner Refer to fig 1 i A S Tighten the bolts and nuts gradually with a torque wrench to the specified torque Caution level in a diagonal manner Recommended torque value Unit N m kef cm Ib inch 80 100mm 3 4 125 150mm 5 6 200 250mm 8 10 300mm 12 30 0 306 266 40 0 408 355 55 0 561 488 60 0 612 532 Wafer Check Valve 7 chilean Necessary items PE E AEE EAEE E E E A E uae asda ca En SEE EE EAE ASAHI AV VALVES Installation Operation and Maintenance Manual 8 Disassembling method for replacing parts 1 A T Be sure to conduct a safety check on all hand and power tools to be used before beginning work i i Waring Wear protective gloves and safety goggles as fluid remain in the valve even 1f the pipeline is empty i You may be injured i i Do not change or replace valve parts under line pressure i Ea Neo E ee Socket wrench M8 Allen wrench S5
12. under a suspended valve Warning A S The valve is not designed to handle any kind of impact Avoid throwing or dropping the valve Caution Avoid scratching the valve with any sharp object Do not pile up corrugated cardboard packages one on top of another too much Excessively piled up packages may collapse Avoid contact with any coal tar creosote insecticides vermicides or paint The force of swelling may damage the valve a Be sure to carry a valve as shown in the following pictures or parts of valve may be damaged by excessive stresses Correct position Do not allow Disc to hang Do not carry by Disc Keep the piping in the corrugated cardboard boxes avoid direct sunlight and store it indoors at Room Temperature Also avoid storing it in a place which may become very hot Corrugated cardboard packages become weaker as they become wet with water or other liquid Take enough care in storage and handling After unpacking the products check that they are defect free and meet the specifications Wafer Check Valve 3 ASAHI AV VALVES Installation Operation and Maintenance Manual 4 Name of parts Nominal size 80mm 100mm 125mm 150mm 200mm 250mm 300mm 3 4 5 6 8 10 127 kG TS est lo E Only for spring type Only for dr
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