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KAT 1310-B Edition4 05-13

Operation and Maintenance Instructions

VAG EKN

®

Butterfly Valve

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Содержание EKN

Страница 1: ...KAT 1310 B Edition4 05 13 Operation and Maintenance Instructions VAG EKN Butterfly Valve...

Страница 2: ...f the valve 7 4 2 2 Gear positions 9 4 3 Installation position 10 4 4 Assembly instructions and fittings 11 5 Set up and operation of the valve 11 5 1 Visual inspection and preparation 11 5 2 Function...

Страница 3: ...valve needs to be dismantled from a pipeline fluid may emerge from the pipeline or the valve The pipeline must be emp tied completely before the valve is dismantled Special care needs to be taken in c...

Страница 4: ...erfly Valves sized DN 900 and larger are pro vided with suspension bores located above the flange As shown in Picture 3 they can be used to lift the VAG EKN Butterfly Valve For valves that have been f...

Страница 5: ...tterfly Valve is used to control flow the operational limits of the maximum flow velo city as well as the cavitation limits must be observed The operational limits can be calculated either using the V...

Страница 6: ...he valve in throttle position can result in its increased wear and tear and even destroy the valve or the downstram pipeline The operational limits according to Section 3 3 1 need to be established 3...

Страница 7: ...es specified in EN 1074 2 The space between the flan ges must be large enough so as not to damage the coating of the raised face of the flange during instal lation The flanges of the pipeline must not...

Страница 8: ...nction of the VAG EKN Butterfly Valve Branches and elbows may cause the disk to vibrate A damping zone between the branch elbow and the valve is ideal Picture 9 Installation of the VAG EKN Butterfly V...

Страница 9: ...ical installation Picture 11 Vertical installation of the VAG EKN Butterfly Valve 4 2 2 Gear positions The gear can be turned by 90 around the drive shaft A Flow on shaft side seat surface on the outl...

Страница 10: ...g up or down in the pipelines In case of valves with larger nominal diameters a special design of the valve must be selected due to the load of the disk Please consult VAG before placing your order Pi...

Страница 11: ...alves are installed to prevent damage to the seals and the corrosion protection Welding residue must be removed befo re the equipment is put into operation The pipeline must be laid in a way that prev...

Страница 12: ...m at full differential pressure including a safety factor of 1 5 If required you can contact us for information about the respective torques and or controlling torques for elec tric actuators 6 3 Emer...

Страница 13: ...up and operation A VAG EKN Butterfly Valve not equipped with a gear unit is not self locking The actuator the gear unit may not be disassembled as long as the valve is pressurised This also applies i...

Страница 14: ...drinking water Recommended lubricants For the profile seal and the O rings KL BERSYNTH VR 69 252 with KTW approval for drinking water Manufacturer Kl ber Lubrication M nchen AG Germany 7 3 4 Replaceme...

Страница 15: ...he gear The limit stop must only be adjusted when the valve is in closed position AUMA worm gear units are adjusted as specified in the AUMA 90 Gear Operation Manual 7 3 6 Tightening torques for screw...

Страница 16: ...stalled too closely downstream of an elbow etc Change installation position Valve operating beyond its design limits Check design and or operation data change flow resistance in the valve if required...

Страница 17: ...Edition 4_13 02 2014 www vag group com info vag group com...

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