Ari-armaturen STEVI 471 EN User Manual
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- Table of contents
- TROUBLESHOOTING
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Rev. 0040305000 0410 englisch
1.0 General information on operating
instructions ..................................................... 2
2.0 Notes on possible dangers............................ 2
2.1 Significance of symbols ..........................................2
2.2 Explanatory notes on safety information .................2
3.0 Storage and transport ................................... 2
4.0 Description...................................................... 3
4.1 Scope of applications ..............................................3
4.2 Operating principles ................................................3
4.3 Diagram ..................................................................4
4.3.1 Plug design ........................................................5
4.4 Technical data .........................................................5
4.5 Marking ...................................................................5
5.0 Installation....................................................... 6
5.1 General notes on installation...................................6
5.2 Requirements at the place of installation ................7
5.3 Installation instructions concerning actuators .........7
6.0 Putting the valve into operation.................... 8
7.0 Care and maintenance................................... 8
7.1 Replacement of stem sealings ............................... 8
7.1.1 PTFE V-ring unit design .................................... 8
7.1.2 Stuffing box packing design ............................... 9
7.1.3 Bellows seal design ........................................ 10
7.2 Replacement of internal parts .............................. 12
7.2.1 Replacement of plug and stem ...................... 12
7.2.2 Replacement of seals of
pressure balanced plugs ............................... 12
7.2.3 Replacement of the seat ring........................... 13
7.3 Tightening torques................................................ 13
7.3.1 Tightening torques for nuts .............................. 13
7.3.2 Tightening torques for seat rings ..................... 13
8.0 Troubleshooting........................................... 13
9.0 Troubleshooting table ................................ 14
10.0 Dismantling the valve or the top part ...... 15
11.0 Warranty / Guarantee ................................. 15
12.0 EC declaration of conformity.................... 16
Contents
Operating and installation instructions
Straight through control valves - STEVI
®
470 / 471
Series 470 Series 471
Summary of Contents
Page 1 - 470 / 471
Rev. 0040305000 0410 englisch1.0 General information on operating instructions ... 22.0 Notes on pos
Page 2 - 3.0 Storage and transport
Page 10 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4717.1.3 Bellows seal design If the
Page 3 - 4.0 Description
Rev. 0040305000 0410 Page 11Operating and installation instructionsStraight through control valves - STEVI® 470 / 471DN125v-150v - Loose nuts (pos. 11
Page 4 - 4.3 Diagram
Page 12 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4717.2 Replacement of internal part
Page 5 - 4.5 Marking
Rev. 0040305000 0410 Page 13Operating and installation instructionsStraight through control valves - STEVI® 470 / 4717.2.3 Replacement of the seat ri
Page 6 - 5.0 Installation
Page 14 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4719.0 Troubleshooting table ATTEN
Page 7
Rev. 0040305000 0410 Page 15Operating and installation instructionsStraight through control valves - STEVI® 470 / 47110.0 Dismantling the valve or th
Page 8 - 7.0 Care and maintenance
Page 16 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 47112.0 EC declaration of conformit
Page 9
Page 2 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4711.0 General information on operat
Page 10
Rev. 0040305000 0410 Page 3Operating and installation instructionsStraight through control valves - STEVI® 470 / 4714.0 Description4.1 Scope of appl
Page 11
Page 4 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4714.3 Diagram Fig. 1: Series 470 DN
Page 12
Rev. 0040305000 0410 Page 5Operating and installation instructionsStraight through control valves - STEVI® 470 / 4714.3.1 Plug design 4.4 Technical
Page 13 - 8.0 Troubleshooting
Page 6 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4715.0 Installation5.1 General note
Page 14 - 9.0 Troubleshooting table
Rev. 0040305000 0410 Page 7Operating and installation instructionsStraight through control valves - STEVI® 470 / 4715.2 Requirements at the place of
Page 15 - 11.0 Warranty / Guarantee
Page 8 Rev. 0040305000 0410Operating and installation instructionsStraight through control valves - STEVI® 470 / 4716.0 Putting the valve into operat
Page 16
Rev. 0040305000 0410 Page 9Operating and installation instructionsStraight through control valves - STEVI® 470 / 4717.1.2 Stuffing box packing design
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