Butterfly Valves
Contents
1. Butterfly Valves Type 56 75 56D 75D pper Par So 30 137 ib 25a 27 370 j L 1 K E 2 L L No DESCRIPTION No DESCRIPTION 1 Body 25 Gear Box 1b Insert Metal of Body 25a Handle Wheel A 2 Disc 25b Cap B 2a Insert Metal of Disc 25c Indicator Board 3 Seat 27 Gasket B 4 O Ring A 28 Bolt amp Nut G 5 O Ring B 29 Bolt D 6 O Ring C 30 Stand 7 Stem 37 Joint 7a Key A 37a Screw C 7b Snap Ring ASAH AM Installation Operation and Maintenance Manual Type 56 56D Gear Type Type 3 400mm 16 with Handle Lock Option Body Material PP PVDE PDCPD No DESCRIPTION 161 Lock Plate A 162 Lock Plate B E Reference figure Type 56 56D_ Chain Type 3 400mm 16 Option Type 75 75D Chain Type AB1250N 450 600mm 18 24 Option Body Material PP PVDE PDCPD2. el PTA LL le No DESCRIPTION aJ i cal 62 Sprocket Wheel o SNA 63 Chain A A 3 64 Chain Cover uN si f Reference figure o 1 Butterfly Valves Type 56 75 56D 75D ASAHI AW Installation Operation and Maintenance Manual Type 56 56D Long Stem T 3 400mm 16 Option Type 75 75D Long Stem T AB1250N 450 600mm 18 24 Option Body Material PP PVDE PDCPD as E IN er Em Foo NE p Y a T O i 7 E No DESCRIPTION imi Fh m l famn 66 Bolt Nut B ESE 7 70 Gasket C 74 Pipe 75 Shaft 77 Bolt H 158 Gasket L Reference figure Type 56 56D Gear T Body Material PP PVDE PDCPD xo Butterfly Valves Type 56 75 56D 75D E 3 400mm 16 with Limit Switch Box 200 SB2 Option No DESCRIPTION 38 Bracket A 45 Limit Switch Box Reference figure 10 ASAH AV Installation Operation and Maintenance Manual 5 Working pressure vs temperature BUTTERFLY VALVE TYPE56 BUTTERFLY VALVE TYPE75 Nominal Size 400mm 16 Nominal Size 450mm 18 Z 50 10 Z 150 1 0 a amp T T a a
3. g 2 5 A a E 5 8 70 0 5 e N 2 70 0 5 on ee a E a P 00 a Y ke 1 x x a k y K 3 sa E S A a e a WI i i w a a Li Li 00 00 40 20 0 20 40 60 80 100 120 40 2 0 20 40 60 80 100 120 40 5 30 70 105 140 175 210 250 Temperature C LP F 40 5 30 70 105 140 175 210 250 Temperature C F 40 2 0 20 40 60 80 100 120 4 20 0 20 40 60 80 100 120 40 5 30 70 105 140 175 210 250 40 5 30 70 105 140 175 210 250 ee De gt gt lt PE gt lt E gt m E gt EF E lt Me A E gt lt amp CS gt BUTTERFLY VALVE TYPE75 BUTTERFLY VALVE TYPE56D 75D Nominal Size 500 600mm 20 24 Nominal Size 400 600mm 16 24 3 150 1 0 a 150 10 2 A T T S a ld E Ed 70 0 5 N 4 70 05 e f N e a tec ies 1 S S ee a Va S S EL a l ec el eo x i i ya a i 1 i 00 20 0 20 40 60 80 100 120 5 30 70 105 140 175 210 250 Temperature C F 20 0 20 40 60 80 100 120 5 so fro 105 t40 175 210 250 20 0 20 40 60 80 100 120 5 30 70 105 140 175 210 250 Temperature C F 20 0 20 40 60 80 100 120 5 so o 105 140 175 210 250 a e e za E De DAR gt OX gt KOA KO lt gt lt z gt IAS a a RESINA ALE gt SS gt lt ere
4. Note Data mentioned in the table above is reference only These data are measured in standard condition and it slightly differs depending on conditions Required Operating Force is the data by turning handle with both hands 10 Disassembly and assembly procedure for pats replacement A Wear protective gloves and safety goggles as fluid remain in the valve even if the pipeline is empty You may be injured When installing pipes and valves ensure that they are not subjected to tension compression bending impact or other excessive stress Do not change or replace valve parts under line pressure Mei a rt Mae A O A A AE A A a N O Protective gloves Safety goggles Spanner wrench Plate Thrust bearing Silicone grease Screwdriver lt lt Disassembling The Valve gt gt eat Procedure ve Z 1 Drain fluid completely from the pipeline and leave the valve slightly i La opened 2 Loosen the connecting bolts and nuts with a spanner wrench 3 Remove the valve from the pipeline e E 4 To take off the gearbox 25 loosen the bolt C 28 and pull up the gearbox 5 Attach jack thrust bearing plate and pipe to the valve and thread the jack into the stem 7 6 Remove the stem 7 from the jack 7 Remove the O ring C 6 E 8 Make the disc 2 fully open d 9 Pull out the both edges of seat 7
5. After unpacking the products check that they are defect free and meet the specifications Butterfly Valves Type 56 75 56D 75D 3 ASAH l AM Installation Operation and Maintenance Manual 4 Name of parts Type 56 Gear Type Type 3 400mm 16 Body Material PP PVDF 25 EA No DESCRIPTION 12e i Body e 2 Disc 3 Seat 4 O Ring A T 5 O Ring B 6 O Ring C 7 Stem 25 Gear Box 26 Gasket A 2 28 Bolt C I Ss gt N SN N Y g t2s il Type 75 Gear Type AB1250N 450 600mm 18 24 Body Material PP PVDF De No DESCRIPTION DES O Body Ho A207 JA T 2 Disc pA NN 1 3 Seat m HAZ SOS Jf 4 O Ring A 9 q 9 aes Al HG 5 O Ring B E 281 8 E 6 O Ring C CN 6 7 Stem gt Sres 7al Key A SS 4 7b Snap Ring 25 Gear Box 28 Bolt C 30 Stand 207 Handle C 7 208 Handle Grip 209 Spring Pin Atl 216 Scale Plate 7 i Butterfly Valves Type 56 75 56D 75D 4 ASAH l AM Installation Operation and Maintenance Manual Type 56D 75D_ Gear Type Type 3 AB1250N 400 600mm 16 24 Body Mater
6. LI WwW Ly 60 24 572 12252 pn Necessary items ee OEN EA O Torque wrench O Spanner wrench O Bolt Nut Washer For many flanges specification Procedure 1 Leave the disc 2 slightly opened by the handle Do not make the disc protrude from the seat The disc may be damaged 2 Set the valve to the coupled flange 3 Insert the connecting bolt washer nuts and temporarily tighten them by hand al i A When you insert a valve between flanges Caution please insert after extending the fields of i flanges fully If you insert a valve by force without fully extending fields of i flanges a liner may be tumed over and i suffer a crack i i The parallelism and axial misalignment of the flange surface should be under the values shown in the i i following table to prevent damage the valve i l A failure to observe them can cause destruction due to stress application to the pipe i i Unit mm inch Axial misalignment Parallelism Nom Si Axial Parallelism ERE Misalignment a b 400 600mm 15 1 0 16 24 0 06 0 04 i Tighten the bolts and nuts gradually with a torque wrench to the specified torque level in a diagonal manner i Avoid excessive tightening The valve can be damaged ot LO a 7 Specified torque value Unit N m kgf cm Ib inch Mp A LAW s i Nom Size 400 45
7. 75 56D 75D ASAH AM Installation Operation and Maintenance Manual Type 75D Top Gear T VA 04 UG 450 600mm 18 24 Body Material PP PVDF 250 qn i i EJ SN et ET A f P 1 l Li Fi i fo pa i me 1 7 2 gt i 3 q 2325 10 1 li ise of ca 2503 Y PI 25b E Lon No DESCRIPTION No DESCRIPTION 1 Body 7a Key A la Ring 25 Gear Box 1b Insert Metal of Body 25a Handle Wheel A 2 Disc 25b Cap B 3 Seat 25c Indicator Board 4 O Ring A 27 Gasket B 5 O Ring B 28 Bolt amp Nut G 6 O Ring C 29 Bolt D 7 Stem 30 Stand Butterfly Valves Type 56 75 56D 75D 7 ASAHI AW Installation Operation and Maintenance Manual Type 56D 75D_ Top Gear Type RVA 03 UG RVA 04 UG 400 600mm 16 24 Body Material PDCPD a 25c 1 El 25b SSS SSS os a teh ES a A
8. Terminal crimping tool Procedure TA 200 SB2 1 Remove the indicator 2 Remove the fixed screws from casing using screw driver Don t be missing the o ring of case end 3 Tum to counter clockwise and remove the piping port di protective cap E over 4 Draw the cable through the connector f d PEN 5 Strip the cable with wire stripper 6 Connect the cable to terminal board with a screw driver in accordance page 12 X Tighten the screws Short circuit or shocks may occur E 7 Tighten up the connector to fix the cable ll 8 The screws must be tightened in turn after set the casing with screws driver gt lt Be sure to set the o ring when the casing is re set Short circuit or shocks may occut 9 Inset the indicator to the upper camshaft which must be set same direction of the seal s arrow Butterfly Valves Type 56 75 56D 75D 14 ASAH l AM Installation Operation and Maintenance Manual 9 Operating Procedure A O Do not use the valve to fluid containing slurry The valve will not operate properly Caution The installed valve must never be opened or closed when foreign matter such as sand is present in the pipeline Do not exert excessive force in closing the valve When operating the handle be sure to do so with your hand Using a tool may damage the handle O The indicator shows the position of the disc on the top of gear box For the full shut position the ind
9. You may be injured A O When installing a pipe support by means of a U band or something similar take care not to over tighten Excessive force may damage the pipe When installing pipes and valves ensure that they are not subjected to tension compression bending The gasket is unnecessary The seat carries out the role of the gasket t 7 The valve disc is in the position indicated by solid lines in figureto zi a the right prior to shipment from the factory If the valve is AO NG opened or closed after unpacking it must be reset in this position sz ZN before installation Failure to do so will result in damage to the surface of the valve seat during handling and installation A Hi flat I pl al f J Y i 1 gt 2 interruption of U 11 i __ i a ee d Ar l l H i i 1 Ea 12 ASAH l AM Installation Operation and Maintenance Manual In case of an abutting thick walled flange and pipe shave the flange or the pipe inner diameter in order to avoid contact of pipe and disc Ifthe inside diameter of the connecting pipe is larger than dimension D below shaving is not necessary E j Unit mm inch san Nominal size Diameter D __ Cm 400 16 370 14 57 NK 450 18 422 16 61 arti he 500 20 472 18 58
10. and remove the seat 3 and disc 2 E Thrust bearir 10 Take the disc 2 out of the seat 3 Or a 11 Remove the O ring A 4 and the O ring B 5 bay Peo lt lt Disassembling The Handle of Gearbox 450 600mm 18 24 gt gt 1 Extrude the spring pin which is connecting the shaft and steering wheel by a tool 2 Pull out the steering wheel of the shaft Butterfly Valves Type 56 75 56D 75D 16 ASAH AM Installation Operation and Maintenance Manual lt lt Assembling The Valve gt gt Procedure 1 Before starting assembly silicone grease equivalent to Toray Silicone E HVG should be spread on the disc O rings A 4 B 5 and stem O ting ES gt 6 SN 2 The procedure of the assembly is the almost reverse of its disassembly However to insert seat 3 with the disc 2 into the body 1 set the disc 2 with half opened position Press outer rim of seat 3 into inside of the body 1 keeping stem holes Y straight Make sure that stem holes of the seat 3 are in alignment with the stem holes of the body 1 3 After assembly make sure that the disc 2 fits seat 3 well lt lt Assembling The Handle of Gearbox 450 600mm 18 24 gt gt 1 Attach the Handle and the shaft aligning the holes correctly 2 Useahammer to intrude push in the spring pin into the hole 11 Adjustment procedure for stopper Necessary items Protective g
11. gt Butterfly Valves Type 56 75 56D 75D 11 ASAHI AW 6 Specification of limit switch option Installation Operation and Maintenance Manual Nominal Size Type Type Code Protection Grade 400mm 16 Gear Type TA 200 SB2 IP55 Limit Switch Rating Connection Diagram At intermediate opening Type Code Rate Voltage Resistive Load Inductive Load preerie AC125 11 7 AC250 11 7 TENE DC125 0 5 0 1 ol DC250 0 25 0 04 7 Installation procedure Warnina Caution Butterfly Valves Type 56 75 56D 75D impact or other excessive stress Do not install the valve with the disc fully closed The disc may pinch into the seat resulting in a high operating torque and preventing the valve from operating properly Use flat faced flanges for connection to AV Valves Ensure that the mating flanges are of the same standards Care must be used during piping installation to ensure that the pipes or flanges are properly l aligned so that the valve disc does not contact them in any setting Misalignment as in figure below will result in damage to the valve A O When suspending and supporting a valve take care and do not stand under a suspended valve Be sure to conduct a safety check on all hand and power tools to be used before beginning work Wear protective gloves and safety goggles as fluid remain in the valve even if the pipeline is empty
12. the gas is under similar pressures used for liquids 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 to check for leaks under water pressure If absolutely necessary to use a gas in testing please consult your nearest service station beforehand A O Do not step on or apply excessive weight on valve It can be damaged Caution Do not use the valve in conditions where the fluid may have crystallized The valve will not operate properly Keep the valve away from excessive heat or fire It can be damaged or destroyed Always operate the valve within the pressure vs temperature range The valve can be damaged or deformed by operating beyond the allowable range Allow sufficient space for maintenance and inspection Select a valve material that is compatible with the media For chemical resistance information refer to CHEMICAL RESISTANCE ON ASAHI AV VALVE Some chemicals may damage incompatible valve materials Keep the valve out of direct sunlight water and dust Use cover to shield the valve The valve will not operate properly Perform periodic maintenance Leakage may develop due to temperature changes or periods of prolonged storage rest or operation Gear Operator Operation we utilize a self locking worm gear design on our manual operat
13. 0mm 16 18 500 600mm 20 24 ae VS tl CONO i Torque value 80 816 710 100 1020 887 A Butterfly Valves Type 56 75 56D 75D 13 ASAH AM Installation Operation and Maintenance Manual JIS Standard 10K Body Material PP PVDF PDCPD Unit mm inch Nominal BoltA Bolt B Quantity E Size D L S DI Ll Bolt A Bolt B ut Washer 400mm more than 60mm more than 14 4 32 16 290mm 11 42 Q 36 120mm 4 72 450mm more than 65mm more than ag Mes 310mm 12 20 2 56 M24 120mm 4 72 16 8 Ga 500mm more than 65mm more than 16 8 40 20 320mm 12 60 2 56 120mm 4 72 600mm more than 75mm more than 24 M30 350mm 13 78 295 M30 140mm 5 51 20 8 48 _Bolt A_ _BoltB_ L _ 7 J E 8 Connection of limit switch procedure option Shut down the power on the equipment before connecting wires There are risks of electrical Warning shock depending on the level of operating voltage A de Be sure that the terminal cover and body cover are put on during the operation If you use the limit switch at 1mA 100mA or 5 30V consult near Asahi dealer Eacan T ERS CIDP RCE PICT NN a eT Pet ee eves Necessary items Screw driver Connector G1 2 O Crimp style terminal Wire stripper
14. ASAH AV Installation Operation and Maintenance Manual Serial No H V030 E 12 Butterfly Valves Type 56 Nominal Size 400mm 16 ype Body Material PP PVDF E Bes Size 450 600mm 18 24 ype Body Material PP PVDF Contents T 56D Bees Size 400mm 16 1 Be sure to read the following warranty ype Body Material PDCPD clauses of our product e 1 2 General operating instructions ida 2 Werp Ree Size 450 600mm 18 24 ype Body Material PDCPD 3 General instructions for transportation unpacking and storage A 3 User s Manual 5 Working pressure VS temperature aiii 11 6 Specification of limit switch cn ositos 12 7 Installation procedure 12 8 Connection of limit switch procedure 1 14 9 Operating procedure e A 1 5 10 Disassembly and assembly procedure for parts replacement 16 11 Adjustment procedure for stopper 17 12 Inspection METIS E E E E 18 13 Troubleshooting mmm 18 14 Handling of residual and waste materials P IEE EEIN OO Oia 1 8 ASAHI YUKIZAI CORPORATION Butterfly Valves Type 56 75 56D 75D ASAH AV Installation Operation and Maintenance Manual This user s guide contains very important information for the proper installation maintenance and safe use of an ASAHI AV Product Please store this manual in an easily accessible location lt Warning amp Caution Signs gt A This symbol reminds the user to take caution due to the potential for seri
15. he product is shipped from our factory or one year after i 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 warranty 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 is en A ey a Sp eae et ETA Butterfly Valves Type 56 75 56D 75D 1 ASAH l AM Installation Operation and Maintenance Manual 2 General Operating Instructions A de Using a positive pressure gas with our plastic piping may pose a dangerous condition due to the repellent Waming force particular to compressible fluids even when
16. ial PDCPD J 158 No DESCRIPTION No DESCRIPTION 1 Body 7b Snap Ring 2 Disc 25 Gear Box 2a Disc Insert 26 Gasket A 3 Seat 28 Bolt C 4 O Ring A 30 Stand 5 O Ring B 207 Handle C 6 O Ring C 208 Handle Grip 7 Stem 209 Spring Pin 7a Key A 216 Scale Plate Butterfly Valves Type 56 75 56D 75D ASAHI AW Type 56 Top Gear Type RVA 03 UG 400mm 16 Body Material PP PVDF Installation Operation and Maintenance Manual 25a E gt y nl Tl No DESCRIPTION No DESCRIPTION 1 Body 25 Gear Box la Ring 25a Handle Wheel A 1b Insert Metal of Body 25b Cap B 2 Disc 26 Gasket A 3 Seat 27 Gasket B 4 O Ring A 28 Bolt amp Nut G 5 O Ring B 29 Bolt D 6 O Ring C 30 Stand 7 Stem 37 Joint A 7a Key A 37a Screw C Butterfly Valves Type 56
17. ication shows Shut S For the full opened position the indication shows Open O Gear Type Type 3 Butterfly Valve Type 56 56D Nominal Size 400mm 16 A cata Full open position Un E ea Type BVG 2H Butterfly Valve Type 75 75D Kondia Size 450 600mm 18 24 Full shut Full open position Technical Data for Operation of Gear Type Type 3 AB1250N Nominal Size Stem Torque Diameter of Required Operating Force N Body Material PP PVDF PDCPD Handle PP PVDF PDCPD mm inch N m N m mm N N 400 16 760 1300 300 170 290 450 18 820 1500 400 127 236 500 20 1150 1800 400 178 286 600 24 1600 1900 400 248 302 Note Data mentioned in the table above is reference only These data are measured in standard condition and it slightly differs depending on conditions Required Operating Force is the data by turning handle with both hands Butterfly Valves Type 56 75 56D 75D 15 ASAHI AW Installation Operation and Maintenance Manual Technical Data for Operation of Top Gear Type RVA 03 UG RVA 04 UG Nominal Size Stem Torque Diameter of Required Operating Force N Body Material PP PVDF PDCPD Handle PP PVDF PDCPD mm inch N m N m mm N N 400 16 760 1300 250 190 326 450 18 820 1500 315 98 178 500 20 1150 1800 315 134 212 600 24 1600 1900 315 190 224
18. loves Allen wrench Spanner wrench e The adjustments for full opened and full shut position are step less and it can be done with the stopper adjuster _ Butterfly Valve Type 56 56D 1 Butterfly Valve Type 56 56D Gear Type Type 3 Rubber Cap Remove the rubber cap of Full shut Full opening adjuster Butterfly Valve Type 75 75D Gear Type AB1250N Remove the nut by spanner wrench Butterfly Valve Type 56 56D 75 75D Top Gear Type RVA 03 UG RVA 04 UG Loosen the lock nut by spanner wrench Adjuster for Full Shut Position 2 Loosen the adjuster hex bolt completely by Allen wrench or Adjuster for Full Open Position E spanner wrench Butterfly Valve Type 75 75D ESP 3 Adjust the disc of valve to required position 4 Tighten the adjuster hex bolt e 5 5 Butterfly Valve Type 56 56D Gear Type Type 3 e a nt Put the rubber cap of Full shut Full opening adjuster back on Open Si de Phe Side Nut Adjuster gear box E Butterfly Valve Type 75 75D Gear Type AB1250N utiy Valve pen 5D 755120 Attach the nut to the stopper Lock Nut gt Butterfly Valve Type 56 56D 75 75D Zev i Adjuster f Ve Top Gear Type RVA 03 UG RVA 04 UG E Ke E Tighten the lock nut by spanner wrench Close Side 2 SS 2 e f Open Side SS Butterfly Valves Type 56 75 56D 75D 17 ASAHI AW 12 Inspection items A Perform periodic
19. maintenance Leakage may develop due to temperature changes or over periods Installation Operation and Maintenance Manual of prolonged storage rest or operation 1 Check for flaw crack or deformation on the valve 2 Check for leaks to the outside 3 Check for the deformation of seat due to improper installation of valve 4 Check for the smoothness of handle operation 13 Troubleshooting Phenomenon Cause Treatment Fluid is not stopped in the full closed position at the seat Fluid leaks to the outside 1 The stopper is not set correctly 2 The seat is damaged or worn 3 Foreign materials are caught 4 The disc is damaged or worn 5 The connecting bolts are over tightened or tightened unevenly 1 The seat is damaged or worn 2 The connecting bolts are not tightened in proper torque or evenly Adjust the stopper Replace the seat Clean up Replace the disc Adjust and retighten Replace the seat Adjust and retighten The handle does not work smoothly 1 Foreign materials have adhered 2 The gearbox is damaged 3 The connecting bolt is over tightened Adjust and retighten Replace the gearbox Adjust and retighten Valve does not operate 1 The gearbox is damaged 2 The stem is damaged 3 The spring pin is damaged 14 Handling of residual and waste materials Repair or replace Replace the stem Re
20. ors This design allows flow control of the valve in intermediate positions in normal process conditions In applications where very high velocity turbulence flow or vibration is present and an intermediate setting is required it is recommended to install a locking device The locking device will prevent the possibility of the valve drifting in severe condition form it is original intermediate setting Butterfly Valves Type 56 75 56D 75D 2 ASAH l AM Installation Operation and Maintenance Manual 3 General Instructions for Transportation Unpacking and Storage A O When suspending and supporting a valve take care and do not stand under a suspended valve Warning A This valve is not designed to handle impacts of any kind Avoid throwing or dropping the valve Caution Avoid scratching the valve with any sharp object Do not over stack cardboard shipping boxes Excessively stacked packages may collapse Avoid contact with any coal tar creosote insecticides vermicides or paint These chemicals may cause damage to the valve When transporting a valve do not carry it by the handle gh Store products in their corrugated cardboard boxes Avoid exposing products to direct sunlight and store them indoors at room temperature Also avoid storing products in areas with excessive i temperatures Corrugated cardboard packages become weaker as they become wet with water or other liquid Take care in storage and handling
21. ous injury or death aming A This symbol reminds the user to take caution due to the potential for damage to the valve if used in such a Caution manner lt Prohibited amp Mandatory Action Signs gt O Prohibited When operating the valve this symbol indicates an action that should not be taken amp Mandatory action When operating the valve this symbol indicates mandatory actions that must be adhered to 1 Be sure to read the following warranty clauses of our product 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 technicaldocuments 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 t
22. place the spring pin i A Make sure to consult a waste treatment dealer for recommendations on the proper disposal of plastic 1 1 Warning Butterfly Valves Type 56 75 56D 75D valves Poisonous gas is generated when the valve is burned improperly 18 ASAH AM Installation Operation and Maintenance Manual Butterfly Valves Type 56 400mm 16 Type 75 450 600mm 18 24 Type 56D 400mm 16 Type 75D 450 600mm 18 24 ASAHI YUKIZAI CORPORATION Distributor http www asahi yukizai co jp en e Information in this manual is subject to change without notice 2016 4 Butterfly Valves Type 56 75 56D 75D
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