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AsahiAV 14, User Manual

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ASAHI AV VALVES                                                                                              Installation,Operation and Maintenance Manual

Diaphragm Valves Type 14 True Union Diaphragm Valves Type14

3

No.

DESCRIPTION

No.

DESCRIPTION

No.

DESCRIPTION

◯

1

Body

◯

9

Sleeve

◯

17

Thrust ring(B)

◯

2

Bonnet

◯

10

Handwheel

◯

18

Bolt, Nut (A)

◯

3

Diaphragm

◯

11

Gauge cover

18a

Washer (A)

◯

3a

Inserted metal of DIA

◯

12

Name plate

◯

20

Stopper

◯

4

Cushion

◯

13

Retaining ring-c type

◯

89

Compressor pin

◯

6

Compressor

◯

14

O-ring(A)

◯

90

Inserted nut

◯

7

Joint

◯

15

O-ring(B)

◯

98

Spring washer

◯

8

Stem

◯

16

Thrust ring(A)

◯

99

Valve sheet

 Diaphragm 

◯

4

 is available only when diaphragm 

◯

3a

 is PTFE .

Summary of Contents for 14

Page 1: ...tinginstructions 2 General instructions for transportation unpacking and storage 3 Name of parts 4 Comparisonbetween working temperature and pressure 5 Installationprocedure 6 Operatingprocedure 7 Adjustment procedure for stopper 8 Diaphragmreplacement procedure 9 Mounting an inserted and abase panel 10 Inspection items 11 Troubleshooting 12 Handlingof residualand waste materials 13 Inquiries 14 1...

Page 2: ...boltsduring the first shutdown Refer topage 5 The travel stop may have to be adjusted if media leakage is detected between the upstream downstream sides of the valve Do not stepon thevalveor apply excessive weight onvalve It can bedamaged Do not exert excessive force inclosing or opening thevalve Make sure to consult a waste treatment dealer to dispose ofthe valves Poisonousgas isgenerated when th...

Page 3: ...2 NamePlate 21 Screw 3b Diaphragm 13 Retainingringc type 24 Metalinsert Ensat 3a InsertedmetalofDIA 14 O ring A 25b Endconnector Socketend 4 Cushion 15 O ring B 25c Endconnector Threadedend 6 Compressor 16 Thrustring A 25e Endconnector Spigotend 7 Joint 17 Thrustring B 26 Unionnut 8 Stem 18 Bolt Nut A 27 O ring C 9 Sleeve 18a Washer 10 Handlewheel 19 Conicalspringwasher Diaphragm 4 is available on...

Page 4: ...1 Body 9 Sleeve 17 Thrustring B 2 Bonnet 10 Handwheel 18 Bolt Nut A 3 Diaphragm 11 Gaugecover 18a Washer A 3a InsertedmetalofDIA 12 Nameplate 20 Stopper 4 Cushion 13 Retainingring ctype 89 Compressorpin 6 Compressor 14 O ring A 90 Insertednut 7 Joint 15 O ring B 98 Springwasher 8 Stem 16 Thrustring A 99 Valvesheet Diaphragm 4 is available only when diaphragm 3a is PTFE ...

Page 5: ... Diaphragm Valves Type 14 True Union Diaphragm Valves Type14 4 Flange True Union Socket Threaded Spigot 4 Comparison between operating temperature and pressure Do notoperate valvebeyond the rangeof working temperature and pressure The valve can be damaged Caution ...

Page 6: ...ignment of the flange surface should be under the values shown in the followingtabletopreventdamagethevalve Afailuretoobservethemcancausedestruction dueto stressapplicationtothepipe Unit mm inch Nom Size Axial misalignment Parallelism a b 15 32mm 1 2 11 4 1 0 0 04 0 5 0 02 40 50mm 1 1 2 2 1 0 0 04 0 8 0 03 65 100mm 2 1 2 4 1 0 0 04 0 04 3 Tighten thebolts andnutsgradually with a torque wrench to t...

Page 7: ...nalthreadofthejointandtheendconnector25b hardlywithhand 6 Usingaspannerwrench screwintheendconnector25b byturning180 360 carefullywithoutdamagingit 7 Make sure that the O ring C 27 is mounted 8 Set the end connector 25b and union nut 26 directly on the body without allowing the O ring C 27 to come off 9 Tighten union nut 26 on each valve until handtight 10 Using a strap wrench tightenunion nutsuni...

Page 8: ... 65mm 2 1 2 80mm 3 100mm 4 Quantity ｇ 1 0 1 3 2 0 2 4 3 5 4 8 6 9 9 0 13 0 6 After applying adhesive insert the pipe quickly to the end connector 25b and leave it alone for at least 60 seconds 7 Wipe away overflowing adhesive 8 Make sure that O ring C 27 is mounted 9 Tighten union nut 26 on each valve until handtight 10 Using a strap wrench tightenunion nutsuniformly on each side approx 90 180 tur...

Page 9: ... 2 Remove theunion nut 26 and the end connector 25b 3 Lead theunion nut 26 through the pipe 4 For thenext step refer to theuser s manual for thesleeve welderor the automatic welding machine 5 After welding make surethat the O ring C 27 ismounted 6 Set the end connector 25band theunionnut 26 directly without allowingthe O ring C 27 to come off 7 Tighten union nut 26 on each valve until handtight 8 ...

Page 10: ...illbe flush with thetopof the handle wheel when thevalve is fully closed Nominal size 15 50mm 1 2 2 Nominal size 65 100mm 2 1 2 4 7 Adjustment procedure for stopper Spanner wrench Allen wrench Screw driver Protective Gloves Goggles 15 50mm 65 100mm Necessary items The valve isdesigned for manual operationonly Theuse of assist device may damage the valve Fullopen Half open Full shut Fullopen Half o...

Page 11: ...andloosentheaxialsetscrewcounterclockwisewithanAllenwrench Theaxialsetscrewislocatedwithin thebrasstravelstoplookingdown Loosenthetravelstopcounter clockwise Tightenthetravelstopclockwiseuntilitstop andtheturnitback counter clockwise 180 Re attachthegaugecover Tightening torqueof thescrew Unit N m kgf cm lb inch Nom Size 15 32mm 1 2 11 4 40 50mm 1 1 2 2 Torque value 8 0 81 71 12 0 122 106 Slowlyti...

Page 12: ...nut 20 fromthe lowernut 20 with spanner wrench 3 Loosen thelowernut 20 4 Operate thehandle wheel to tightengradually untiltheleakage of fluid stops 5 Tighten thelowernut 20 until it stop and then turn itback counter clockwise 180 6 Tighten theuppernut 20 to the lower nut 20 with spanner wrench 7 Tighten thegaugecover 11 Tightening torqueofthescrew Unit N m kgf cm lb inch Nom Size 65 100mm 2 1 2 4 ...

Page 13: ... thenew diaphragmby reversing step 5 Mount the bonnet to the valve by reversing step 2 Tighten bonnet bolts by hand only 6 Rotate thehandle360 counter clockwise 7 Using a torque wrench tighten the bonnet bolts in a diagonal cross cross pattern Bonnettorque value Unit N m kgf cm ib inch Nom Size 15 20mm 1 2 3 4 25 32mm 1 11 4 40mm 11 2 50mm 2 65mmm 21 2 80mm 3 100mm 4 Rubber 3 0 31 27 5 0 51 44 12 ...

Page 14: ...n Unit mm inch Nom Size S1 S2 S3 15 32mm 1 2 11 4 25 0 98 7 0 28 13 0 51 40 50mm 1 1 2 2 45 1 77 9 0 35 15 0 59 65mm 2 1 2 85 3 35 11 0 43 20 0 79 80mm 3 100 3 94 15 0 59 28 1 10 100mm 4 120 4 72 15 0 59 28 1 10 Fixationofbottomstand withpanel 10 Inspection items Inspect the following items 1 Check for any flaw crack ordeformationontheoutside 2 Check whether fluid leaks to the outside 3 Check whet...

Page 15: ...be required Consult factory Valve cannotbe fullyopen The metal jointfailed Remove Diaphragm compressor and replace joint The stemis broken Disassemble bonnet and replace the stem The handle spinsfreely The metal jointfailed Remove diaphragm compressor and replace joint Bonnetboltshave loosened Re tighten Media has crystallized on the diaphragm Disassemble and clean on a regular basis Replace faile...

Page 16: ...home Chiyoda Ku Tokyo Japan Tel 81 3 3254 8177 Fax 81 3 3254 3474 SingaporeBranchOffice 16RafflesQuay 40 03Hong LeongBuilding Singapore048581 Tel 65 220 4022 Fax 65 324 6151 EuropeRepresentativeOffice Kaiser Friedrich Promenade61D 61348BadHomburgv d H Germany Tel 49 6172 9175 0 Fax 49 6172 9175 25 ShanghaiBranchOffice Room1301 PShanghaiKerryCenter 1515 Nanjing XiRoad ShanghaiChina Tel 21 5298 6900...

Page 17: ...ration and Maintenance Manual Diaphragm Valves Type 14 True Union Diaphragm Valves Type14 16 Diaphragm Valve Type 14 True Union Diaphragm Valve Type 14 Informationinthismanual is subject to change withoutnotice 2003 5 ASAHI AV VALVES ...

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