GEA Aseptomag AV Translation From The Original Operating Manual Download Page 41 | Manualshive

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Fig.34:

Extending piston rod with groove upward

2.

Lift the internal assembly slightly to detach it from the T-slot on the drive
spindle.

Fig.35:

Unhooking the internal assembly

3.

Remove the housing seal without a tool.

!

Do not damage the sealing surfaces on the housing and internal

assembly.

Fig.36:

Removing housing seal

®

The internal assembly has been disassembled.

Maintenance

Disassembling and Assembling the Internal Assembly

430BAL011547EN_2

08.07.2019

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Summary of Contents for Aseptomag AV

Page 1: ...Aseptic Valves GEA Aseptomag stop valve type AV Operating instruction Translation from the original language 430BAL011547EN_2 ...

Page 2: ...machine readable form without the express permission of GEA Tuchenhagen GmbH LEGAL NOTICE Word marks Aseptomag and TEFASEP are registered trademarks of GEA Aseptomag AG and may not be used without the permission of GEA Aseptomag AG T VIS is a protected trademark of GEA Tuchenhagen GmbH We kindly request that you answer a few short questions about these Operating Instructions Use the following QR c...

Page 3: ...Signage 12 2 8 Residual dangers 12 2 9 Danger zones 13 3 Description 15 3 1 Design of the valve 15 3 2 Valve Identification 16 3 3 Sealing Concepts 18 3 3 1 Shrink on Fit Version 18 3 3 2 System divisible 18 4 Transport and storage 20 4 1 Storage conditions 20 4 2 Transport 20 4 2 1 Scope of supply 20 5 Technical data 21 5 1 Technical data 21 6 Assembly and installation 23 6 1 Safety instructions ...

Page 4: ... 45 10 9 2 Fitting the Divisible Valve Seat Seal 47 10 9 3 Torques for Divisible Valve discs 47 10 10 Carrying out the Internal assembly leak test bubble test 48 10 11 Disassembling and Assembling Actuator PA50 PA60 50 10 11 1 Disassembling Actuator PA50 PA60 50 10 11 2 Assembling Actuator PA50 PA60 55 10 12 Disassembling and Assembling Actuator PA80 PA255 55 10 12 1 Disassembling Actuator PA80 PA...

Page 5: ... the entire life cycle of the product When the location is changed or the product is sold make sure you also provide the Operating Instructions 1 1 2 Notes on the Illustrations The illustrations in these Operating Instructions show the product in a simplified form The actual design of the product can differ from the illustration For detailed views and dimensions of the product please refer to the ...

Page 6: ... damage to the component or in the vicinity of the component The arrow identifies a precautionary measure you have to take to avoid the hazard Carry out the following steps Start of a set of instructions 1 First step in a sequence of operations 2 Second step in a sequence of operations Result of the previous operation The operation is complete the goal has been achieved Hint Further useful informa...

Page 7: ...nic format PDF Manufacturer GEA Aseptomag AG Industrie Neuhof 28 CH 3422 Kirchberg Authorized person GEA Aseptomag AG Engineering Department Industrie Neuhof 28 CH 3422 Kirchberg Commercial name of the machine Valve Machine type Aseptomag Valve Technology Serial number xxxx yy x serially numbered y year of manufacture Respective EC standard 2006 42 EC Essential requirements Appendix I section 1 an...

Page 8: ...s not in accordance with the designated use of the valve The risk is borne solely by the operating company 2 1 1 Requirements for operation The prerequisite for reliable and safe operation of the component is proper transportation and storage as well as professional installation and assembly Operating the unit within the limits of its designated use also involves adhering to the operating inspecti...

Page 9: ...arry out the relevant tasks Order and cleanliness must be maintained at the work stations and in the entire area surrounding the component Personnel must wear suitable work clothing and personal protective equipment As the operating company must ensure that work clothing and personal protective equipment are used Inform personnel regarding any properties of the product which might pose a health ri...

Page 10: ...gible form Only use the valve for its intended use The valve must be functional and in good working order Check the condition of the valve before starting work and at regular intervals Wear tight fitting work clothing for all work on the valve Ensure that nobody can get hurt on the parts of the valve Immediately report any faults or noticeable changes on the valve to the person responsible Never t...

Page 11: ...This section provides information on how the personnel working on the component must be trained Operating and maintenance personnel must have the necessary qualification to carry out their tasks be instructed with regard to possible dangers know and observe the safety instructions given in the documentation Only allow qualified electricians to carry out work on the electrical equipment or have a q...

Page 12: ...mp What to do in case of an emergency Lines of authority and responsibilities with respect to the task Maintenance personnel Appropriate training and a sound knowledge of the structure and functionality of the component Sound knowledge in the following areas Mechanical equipment Electrical equipment Pneumatic system Authorization with regard to safety engineering standards to carry out the followi...

Page 13: ...t unauthorised persons from manipulating the valve The operator must exercise caution and prudence For all work Wear suitable work clothing Never operate the machine if the cover panels are not correctly fitted Never open the cover panels during the operation Never reach into openings As a precautionary measure wear personal protective equipment in the vicinity of the valve Protective gloves Safet...

Page 14: ...by supplying the actuator A with compressed air Before starting any maintenance servicing or repair work disconnect the valve from the power supply and secure it against inadvertently being switched back on again Only allow a qualified electrician to carry out any work on the electrical power supply Check the electrical equipment of the valve at regular intervals Immediately remedy loose connectio...

Page 15: ...ption 3 1 Design of the valve Fig 2 Main components on the valve Key No Designation 1 Housing 2 Internal assembly 3 Actuator 4 Clamp safety device Description Design of the valve 430BAL011547EN_2 08 07 2019 15 ...

Page 16: ...o the actuator 0001 14 Serial number main components The serial number has the same structure as the valve s serial number but it is placed on the relevant main component housing internal assembly actuator by laser marking stamping V 50 1001 Drawing number The drawing number is a combination of two groups The digits in front of the hyphen refer to where the components belong to The next four numbe...

Page 17: ...ial number of valve housing 3 V 50 1004 Clamp Number of clamp drawing 4 V 50 2200 1424 10 Internal assembly Drawing number of internal assembly Serial number of internal assembly 5 1216 10 Actuator Sticker with valve serial number 6 PA100 50 NC V 50 3000 0977 10 Actuator Designation of actuator Number of actuator drawing Serial number of actuator Description Valve Identification 430BAL011547EN_2 0...

Page 18: ... seat seal EPDM form seal TVPVF Divisible valve disk valve seat seal reinforced PTFE form seal Concept for O rings Divisible valve disk GEA Aseptomag option For sealing materials such as TEFASEP TVT Additional O ring behind the valve seat seal Fig 5 System divisible for O rings Concept for form seals Divisible valve disk GEA Aseptomag option For sealing materials such as EPDM TVE or reinforced PTF...

Page 19: ...Fig 6 System divisible for O rings Description 430BAL011547EN_2 08 07 2019 19 ...

Page 20: ...aused by impact or careless loading and unloading The outside synthetic materials are susceptible to breaking Control tops if fitted must be protected from animal and vegetable fats Only allow qualified staff to transport the valve Movable parts must be properly secured Only use approved fully functional load lifting devices and lifting accessories which are suitable for the intended purpose Obser...

Page 21: ... product Surface roughness Ra 0 8 µm standard Outer surfaces Metal blank fine turned and or polished Inside areas with the exception of the metal bellows in contact with product can be electropolished passivated or ground on request These methods will bring up surface roughness to Ra 0 6 µm 0 4 µm Resistance of sealing materials Product contact seals All sealing materials in the product contact ar...

Page 22: ...is suitable for CIP cleaning Cleaning in Place Recommended cleaning speed in the valve At least 2 m s Sterilisation Sterilisation The valve is suitable for SIP sterilisation Sterilisation in Place Sterilisation with Hot water max 160 C 320 F Steam max 160 C 320 F Chemicals e g H2O2 Technical data 430BAL011547EN_2 22 08 07 2019 ...

Page 23: ...s of the component may not work effectively during installation Reliably secure sections of the plant which have already been connected against inadvertently being switched on 6 2 Notes on installation The valve must be installed so that the housing can drain on its own To prevent damage make sure that the valve is installed in the pipe system free of tension and no foreign materials e g tools bol...

Page 24: ...them 2 Prepare the component housing so that the component housing can be welded into position free from stress and distortion 3 Prepare the welding procedure use the 141 TIG tungsten inert gas welding method with butt weld I joint according to DIN8532 hand or orbital weld 4 Connect the forming gas 5 Tack the component housing at several points distributed around the circumference under forming ga...

Page 25: ... 12 5 6 0 9 DN 50 2 OD PA100 NC 25 6 2 2 DN 65 2 1 2 OD PA100 NC 25 6 2 2 DN 80 3 OD PA135 NC 25 6 3 8 DN 100 4 OD PA180 NC 25 6 7 8 DN 125 PA255 NC 35 6 20 3 DN 150 6 OD PA255 NC 35 6 20 3 Air requirement for spring to open actuators NO Nominal width of valve Actuator Reference stroke RH1 Reference air pressure RL1 Air requirement at RH1 RL1 mm bar dm N DN 10 1 2 OD PA60 NO 6 6 0 3 DN 15 3 4 OD P...

Page 26: ...ve parts Electrical shock can result in serious personal injury or death Only allow properly qualified staff to carry out work on the electrical equipment Prior to establishing electrical connections check the maximum permissible operating voltage Explosive gases or dusts An explosion can result in serious personal injury or death Observe the installation and operating regulations for use in poten...

Page 27: ...lish all connections correctly The safety devices for the valve must be complete fully functional and in perfect condition Check the function before starting any work When the valve is switched on the danger zones must be free Remove any liquids that have escaped without leaving residues 7 2 Notes on commissioning Before starting commissioning observe the following Make sure that there are no fore...

Page 28: ...ervals All guards and hoods must be fitted as intended The installation location of the component must always be properly ventilated Structural changes to the component are not permitted Report any changes to the component immediately to the person in charge Always keep danger zones clear Do not leave any objects in the danger zone Only allow persons to enter the danger zone when the machine is de...

Page 29: ... place The following data applies for valves equipped with TEFASEP and silicone sealing materials Sterilisation is possible with Hot water max 160 C 320 F Steam at max 160 C 320 F for 20 to 30 min Chemicals e g H2O2 Hint When TEFASEP valve seat seals are used hot sterilization is mandatory Steam sterilization allows the seal to be perfectly fitted into the valve seat thus ensuring optimum sealing ...

Page 30: ...The ultimate temperatures chemicals concentrations and contact time to be used must be determined by the plant operator along with its chemical supplier Cleaning 430BAL011547EN_2 30 08 07 2019 ...

Page 31: ...n to the maintenance or repair work going on Do not climb on the component Use suitable access aids and working platforms Wear suitable protective clothing Only use suitable and undamaged tools to carry out maintenance work When replacing parts only use approved fully functional load lifting devices and lifting accessories which are suitable for the intended purpose Before setting the unit back in...

Page 32: ...ic connections Carry out the following steps 1 Check the operating pressure at the pressure reducing and filter station 2 Clean the air filter at regular intervals 3 Check that the air hoses sit firmly in the air connections 4 Check the lines for kinks and leaks The pneumatic connection has been checked 10 2 3 Electrical connections Carry out the following steps 1 Check that the proximity switches...

Page 33: ...sed on empirical values for GEA Flow Components and relates to installations working in two shift operation 10 4 List of tools List of tools in alphabetical order Tool Figure Intended Purpose Material Number GEA Aseptomag AG Pressurizing tool DN 10 DN 80 Fig 7 Valves DN 10 DN 80 Inspection of metal bellows 0980 50003 S 12 0010 Pressurizing tool DN 80 DN 100 Fig 8 Valves DN 80 DN 100 Inspection of ...

Page 34: ...10090 Flexible head spanner Ø60 90mm Pin Ø 5 5mm Fig 12 PA80 135 Remove fit assembly spring 0980 10009 S 12 0332 Flexible head spanner Ø95 155mm Pin Ø 6mm Fig 13 PA180 PA210 Remove fit assembly spring 0980 50131 S 12 0568 Hand operated press Fig 14 PA50 60 NC NO Remove fit PA 5050 55469 S 12 0406 Oven no microwave min temp 140 C Fig 15 Preheat hard valve seat seals 0981 50016 S 12 0084 Maintenance...

Page 35: ...ive Fig 17 Release divisible valve disks 0980 50124 S 12 0557 Mounting tool Spring package PA20 210 Fig 18 PA20 210 Remove insert spring package 0981 50008 S 12 0209 Mounting tool Spring package PA255 PA255 Remove insert spring package 0981 50009 S 12 0210 Mounting tool Bushing PA30 60 NC NO Fig 19 PA30 60 NC NO Remove fit PA 5050 50988 S 12 0233 Mounting tool Clamping piece PA30 210 Fig 20 PA30 2...

Page 36: ...t seals 5050 51258 S 12 0162 O ring cutter heated Fig 23 Disassemble hard shrunk valve seat seals 0980 50022 S 12 0083 Slotted screwdriver Size 1 Fig 24 PA80AZ PA180AZ Remove circlip from actuator base Slotted screwdriver Size 4 PA80 255 Fit assembly spring Vice with soft jaws or equivalent protective jaws Fig 25 For divisible internal assemblies and actuators Maintenance List of tools 430BAL01154...

Page 37: ... 29 Valves DN 10 DN 100 Loosen tighten divisible valve disks 0980 00009 S 12 0663 Socket wrench bit AF17 square drive Fig 30 Valves DN 125 DN 150 Loosen tighten divisible valve disks 0980 00010 S 12 0664 10 5 Prior to disassembly Prerequisite Make sure that while work is being performed on the open valve no process is in operation in the area concerned Carry out the following steps 1 Drain all pip...

Page 38: ...or all work Always exercise caution and prudence Caution Danger of injury due to media escaping after removing the clamp You can sustain injuries to your entire body if you open a valve that is still under pressure from the medium Ensure that the valve is no longer under medium pressure before removing the clamp Wear suitable protective clothing for all work Always exercise caution and prudence Ca...

Page 39: ... pressure escapes and the clamp can then be moved without any problem 3 Carefully take off the clamp from the valve 4 Carefully lift the actuator with the internal assembly out of the housing Do not damage the sealing surface on the valve housing Fig 33 Removing actuator and internal assembly Internal assembly and actuator are now separated from the housing Maintenance Disassembling and Assembling...

Page 40: ... Clamp screw thread size Recommended torque Nm M6 10 M8 20 10 7 Disassembling and Assembling the Internal Assembly 10 7 1 Disassembling the internal assembly Caution Danger of injury due to valve parts moved by compressed air You can sustain injuries to your fingers when you put your hand into the valve while it is switching Wear protective gloves for all work Always exercise caution and prudence ...

Page 41: ... spindle Fig 35 Unhooking the internal assembly 3 Remove the housing seal without a tool Do not damage the sealing surfaces on the housing and internal assembly Fig 36 Removing housing seal The internal assembly has been disassembled Maintenance Disassembling and Assembling the Internal Assembly 430BAL011547EN_2 08 07 2019 41 ...

Page 42: ...he reverse order of disassembly see Section 10 7 1 Page 40 The internal assembly has been assembled 10 8 Removing and Installing the Shrunk on Valve Seat Seal 10 8 1 Removing the Shrink on Fit Valve Seat Seal For information on valve seat seals see Section 3 3 Page 18 Tools required O ring cutter Heat resistant protective gloves Caution Health hazard due to toxic fumes The O ring cutter cuts the s...

Page 43: ...for damage Replace all dismantled seals When changing the seals do not damage the seal groove Use only replacement seals from the seal set indicated in the list of spare parts Valve seat seals made of hard sealing materials must not be greased Tools required Oven no microwave Heat resistant protective gloves Carry out the following steps 1 Heat new valve seat seal in oven Temperature 140 C guideli...

Page 44: ...seal has been fitted correctly The valve may not be totally leak proof after a new TEFASEP valve seat seal has been fitted The valve seat seal will adjust itself optimally to the sealing surfaces only after the first sterilisation of the valve see Chapter 9 Page 29 Afterwards it will ensure perfect sealing up to the maximum closing pressure or vacuum Fig 40 Mounting the valve seat seal The valve s...

Page 45: ...Divisible System Valve Seat Seal 10 9 1 Removing the Divisible Valve Seat Seal For information on valve seat seals see Section 3 3 Page 18 Tools required Ratchet with square socket drive Socket wrench bit Vice with smooth jaws or equivalent type of protected jaws Carry out the following steps 1 Clamp the nut of the valve disc into the vice at the spanner flats Fig 41 Clamping internal assembly 2 U...

Page 46: ...3 Removing seal s TVT Divisible valve disk valve seat seal TEFASEP TVE Divisible valve disk valve seat seal EPDM form seal TVPVF Divisible valve disk valve seat seal reinforced PTFE form seal The valve seat seal has been removed Maintenance Removing and Installing the Divisible System Valve Seat Seal 430BAL011547EN_2 46 08 07 2019 ...

Page 47: ...required Torque wrench with wrench socket Vice with smooth jaws or equivalent type of protected jaws Food grade lubricant PARALIQ GTE 703 Carry out the following steps 1 The screwed on valve seat seal is fitted in the reverse order of removal see Section 10 9 1 Page 45 Prepare thermoplastic valve seat seals TEFASEP PTFE in the oven see Section 10 8 2 Page 43 Note table Torques for divisible valve ...

Page 48: ... Tools required Pressurizing tool Compressed air supply Shut off valve Ø 6 mm Pressure regulating valve Ø 6 mm Water bath Carry out the following steps 1 Insert the internal assembly with the T slot of the valve spindle of the removed internal assembly into the pressurizing tool Fig 44 Hook in the internal assembly 2 Place the clamping arms of the pressurizing tools around the valve cover Maintena...

Page 49: ...3 bar of compressed air to the pressurizing tool Air pressures 3 bar can damage the metal bellows 5 Immerse the internal assembly in a water bath for approx 30 seconds During immersion check the internal assembly for leakage Leakages will become visible through rising bubbles Maintenance Carrying out the Internal assembly leak test bubble test 430BAL011547EN_2 08 07 2019 49 ...

Page 50: ...in an uncontrolled manner causing actuator parts to be moved or thrown around rapidly Load and unload the spring in a controlled and slow manner Wear protective gloves for all work Always exercise caution and prudence Tools required Hand operated press Seeger circlip pliers Mounting tool bushing Mounting tool for O ring Carry out the following steps 1 Press the base of the actuator downwards using...

Page 51: ...ove the circlip from the actuator base using the Seeger circlip pliers Fig 49 Removing the circlip 3 Slowly remove pressure from the actuator base Maintenance Disassembling and Assembling Actuator PA50 PA60 430BAL011547EN_2 08 07 2019 51 ...

Page 52: ... actuator base 5 Perform the following step in accordance with the actuator type NC actuator Lift out the piston rod with piston disc from the cylinder NO actuator Carefully draw the compression spring out of the cylinder Maintenance Disassembling and Assembling Actuator PA50 PA60 430BAL011547EN_2 52 08 07 2019 ...

Page 53: ...compression spring out of the cylinder NO actuator Lift out the piston rod with piston disc from the cylinder Fig 53 Lifting out lower actuator components 7 Pull the circlip out of the groove and remove both parts of the lock washer from the piston rod Maintenance Disassembling and Assembling Actuator PA50 PA60 430BAL011547EN_2 08 07 2019 53 ...

Page 54: ...from the piston rod Pay attention to the alignment of the piston disk asymmetrical design already when disassembling Fig 55 Pulling off actuator components Actuator PA50 PA60 has been disassembled Maintenance Disassembling and Assembling Actuator PA50 PA60 430BAL011547EN_2 54 08 07 2019 ...

Page 55: ...703 Carry out the following steps 1 The actuator PA50 PA60 is assembled in the reverse order of disassembly see Section 10 11 1 Page 50 Actuator PA50 PA60 has been assembled 10 12 Disassembling and Assembling Actuator PA80 PA255 10 12 1 Disassembling Actuator PA80 PA255 Tools required Flexible head spanner Mounting tool clamping piece Mounting tool for spring package Mounting tool for O ring Vice ...

Page 56: ...assembly spring Carry out the following steps 1 Turn the actuator base counter clockwise using a flexible head spanner see illustration Rotate the actuator base until the assembly spring begins to move out of the slot in the cylinder Fig 58 Releasing assembly spring Maintenance Disassembling and Assembling Actuator PA80 PA255 430BAL011547EN_2 56 08 07 2019 ...

Page 57: ...tuator Carry out the following steps 1 Lift off the actuator base from the cylinder Fig 60 Removing actuator base 2 Use the mounting tool for the spring package to pull the spring package upwards and out of the cylinder Pay attention to the installation direction of the spring assembly NC NO direction of action already when disassembling Maintenance Disassembling and Assembling Actuator PA80 PA255...

Page 58: ...ves piston rod and piston disc When changing the seals do not damage the seal groove Use only replacement seals from the seal set indicated in the list of spare parts Grease all seals and the associated contact surfaces with the food grade lubricant PARALIQ GTE 703 PA80 PA255 assembling the actuator Carry out the following steps 1 Assemble the actuator in the reverse order of disassembly see Secti...

Page 59: ...bly spring 3 Turn the actuator base 360 counter clockwise using a flexible head spanner The assembly spring is pulled into the cylinder Fig 64 Screwing in the assembly spring 4 As soon as both open ends of the assembly spring are visible in the slot area the beginning of the assembly spring must be pressed into the hole in the actuator base with a slotted screwdriver Carefully continue to turn the...

Page 60: ...connection centrally over the slot in the cylinder Fig 66 Placing the air connection Assembly spring has been fitted Actuator PA80 PA255 has been assembled 10 13 Disassembling and Assembling Actuator PA80AZ PA180AZ 10 13 1 Disassembling Actuator PA80AZ PA180AZ Tools required Flexible head spanner Slotted screwdriver Mounting tool clamping piece Mounting tool for spring package Mounting tool for O ...

Page 61: ...steps 1 Lift off the actuator base from the cylinder Fig 67 Removing actuator base 2 Use the mounting tool for the spring package to pull the spring package upwards and out of the cylinder Fig 68 Lifting out spring package 3 Lift the circlip out of the groove with a slotted screwdriver and remove it Maintenance Disassembling and Assembling Actuator PA80AZ PA180AZ 430BAL011547EN_2 08 07 2019 61 ...

Page 62: ...n disc out of the actuator base Fig 71 Lifting out the piston disc Actuator has been dismantled into its individual parts Opening the spring assembly is forbidden for safety reasons Actuator PA80AZ PA180AZ has been disassembled Maintenance Disassembling and Assembling Actuator PA80AZ PA180AZ 430BAL011547EN_2 62 08 07 2019 ...

Page 63: ...t actuator base and cylinder see fitting the assembly spring Section 10 12 2 Page 58 Actuator PA80AZ PA180AZ has been assembled 10 14 Maintenance Well planned maintenance is essential to ensure a long service life of the valve Observe the following maintenance intervals Prepare maintenance activities well Keep a maintenance log for the valve Use the statistical analyses for your plant to plan main...

Page 64: ... Activity to be performed Product contact seals Seal replacement Internal assembly with bellows Check of mechanical parts and visual inspection of condition Leak test of bellows bubble test Actuator Check of mechanical parts and visual inspection of condition Function check Valve Check of mechanical parts and visual inspection of condition Function check Feedback Check of mechanical parts and visu...

Page 65: ...arding the stroke to be expected see the Valve Stroke table Section 10 15 2 Page 65 The feedback unit has been set Hint If a control top is present the information provided in the corresponding instruction manual must be observed 10 15 2 Valve Stroke Strokes depending on size Size DN Size OD Valve stroke standard mm Valve stroke extended mm DN 10 OD 1 2 4 6 DN 15 OD 3 4 4 6 DN 25 OD 1 6 10 DN 40 O...

Page 66: ...e housing seal correctly or replace it if damaged Medium is leaking from the leakage holes of the internal assembly The metal bellows at the internal assembly is defective due to pressure shocks or cavitation Replace the complete internal assembly Send the defective internal assembly to the manufacturer for repair Check process During pressure testing of the internal assembly air escapes from the ...

Page 67: ...n the actuator Unfavourable effect of the exterior cleaning of the plant If possible position the venting screw so that it faces downwards When the valve is installed in the vertical position ensure that the venting screw faces away from the cleaning direction if possible The TEFASEP valve seat seal is not tight after commissioning or maintenance The valve seat seal has not been fitted correctly I...

Page 68: ...e the storage conditions see Chapter 4 Page 20 12 2 Disposal 12 2 1 General notes Dispose of the component in an environmentally safe manner Observe the statutory waste disposal regulations applicable at the place of installation The component consists of the following materials Metals Synthetic materials Electronic parts Lubricants containing oil and grease Separate the different materials and di...

Page 69: ...iameter DIN German standard issued by DIN Deutsches Institut für Normung e V German Institute for Standardisation dm N Unit of measurement of volume cubic decimetre under standard conditions DN DIN nominal width EN European Standard EPDM Ethylene Propylene Diene Rubber Material designation short designation according to DIN ISO 1629 FDA U S Food and Drug Administration Food monitoring and drug adm...

Page 70: ...meter short name for outside diameter for inch tubes according to DIN 11866 C PA Pneumatic actuator PTFE Polytetrafluoroethylene Material designation short designation according to DIN ISO 1629 SW Width across flats indicates the size of spanners TEFASEP Sealing material for the valve seat seal T VIS Tuchenhagen valve information system TV Divisible valve disk to valve seat seal system divisible T...

Page 71: ...Appendix 430BAL011547EN_2 08 07 2019 71 ...

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