Vag CEREX 300-L Operation & Maintenance Instructions Manual Download | Manualshive

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Edition 7 -

13

-

12

-201

7

VAG CEREX

®

300 Butterfly Valve

Operation and Maintenance Instructions

VAG CEREX

®

300-W Butterfly Valve

VAG CEREX

®

300-L Butterfly Valve

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Summary of Contents for CEREX 300-L

Page 1: ...Edition 7 13 12 2017 VAG CEREX 300 Butterfly Valve Operation and Maintenance Instructions VAG CEREX 300 W Butterfly Valve VAG CEREX 300 L Butterfly Valve...

Page 2: ...tion into the pipeline 6 4 1 Conditions required on site 6 4 2 Installation location 7 4 2 1 Installations in the pipeline upstream and down stream of the valve 8 4 3 Installation position 9 4 4 Assem...

Page 3: ...e not allowed VAG will not assume any liability for consequen tial damage due to non compliance with these instructions When using this valve the generally acknowledged rules of technolo gy have to be...

Page 4: ...cables belts must ensure that the valve is in a horizontal position during the entire lifting procedure The general regulations relating to the use of lifting equipment must be complied with For valve...

Page 5: ...ance limits 3 3 1 Cavitation VAG CEREX 300 Butterfly Valves are mainly used to shut off flow If a VAG CEREX 300 Butterfly Valve is used to control flow the operational limits of the maximum flow veloc...

Page 6: ...essure VAG CEREX 300 Butterfly Valves have to be equipped with an actuator having a limit stop for the open and closed position Hand levers can be used as actuators for valves of a nominal di ameter o...

Page 7: ...o the end of the pipeline using all its threaded lugs If the bolts used are too short the threads may be stripped If you want to open a valve serving as an end of line valve in a pressurised pipeline...

Page 8: ...ent malfunction Directly upstream of 3 x DN and downstream of 3 x DN a VAG CEREX Butterfly Valve an inspection valve an elbow T pieces and Y filters should be provided as otherwise irregular flow may...

Page 9: ...which sedimentation may occur we also recommend installing the valve Figure 9 Installation positions admissible for DN 300 preferred installation position for DN 300 admissible after coordination wit...

Page 10: ...to protect it from dirt When CEREX 300 Butterfly Valves with profiled seals are in stalled no additional seals must be used When installing the valve in an assembled pipeline make sure that the space...

Page 11: ...be done in compliance with the operating manuals issued by the respective gear manufacturers such as AUMA Rotork etc In case a gear is retrofitted its nominal torque and the adjustment of the limit s...

Page 12: ...12 Markings on the gear unit A VAG CEREX 300 Butterfly Valve is not self locking The ac tuator the gear must not be disassembled as long as the valve is pressurised This also applies in case the compl...

Page 13: ...3 Maintenance work and replacement of parts 7 3 1 Design The design view in Picture 13 serves as a partial overview 7 3 2 Recommendations for the replacement of parts The profiled seal O rings and bea...

Page 14: ...erating be yond its design limits Check design and or operation data change flow resist ance in the valve if required by using different internals Valve cannot be operated Foreign matter jammed in the...

Page 15: ...Edition 7 13 12 2017 www vag group com info vag group com...

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