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KAT 1310-B Edition 6_21-03-17

Operation and Maintenance Instructions

VAG EKN

®

Butterfly Valve H, M and B-Series

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Содержание EKN B-Series

Страница 1: ...KAT 1310 B Edition 6_21 03 17 Operation and Maintenance Instructions VAG EKN Butterfly Valve H M and B Series ...

Страница 2: ...ream of the valve 8 4 2 2 Gear positions 10 4 3 Installation position 11 4 4 Assembly instructions and fittings 12 5 Set up and operation of the valve 12 5 1 Visual inspection and preparation 12 5 2 Function check and pressure test 12 5 3 Putting electric actuators into operation 12 6 Actuators 13 6 1 General 13 6 2 Operating torques 13 6 3 Emergency manual operation handwheel 13 6 4 Assembly of t...

Страница 3: ...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 case of residue which may continue flowing 1 2 Proper use The VAG EKN Butterfly Valve is a shut off valve designed for installation in pipelines The VAG EKN Butterfly Valve is intended to shut off the medium Its use as a control valve is only pos...

Страница 4: ...ly Valve For valves that have been factory packed in transport crates wooden crates the centre of gravity of the entire unit must be taken into account The centre of gravity is marked on each side of the crate at our factory and must be considered for all lifting operations 2 2 Storage The VAG EKN Butterfly Valve should be stored with its disk slightly open The elastomeric parts seals must be prot...

Страница 5: ... calculated either using the VAG UseCAD Planning Software or the following calculation rules Cavitation limits After the upstream and downstream pressures of the valve as well as the flow rate have been determined the cavitation value is cal culated as follows Calculation of the σ Value H1 Inlet pressure mWC H2 Outlet pressure mWC HAt Atmospheric pressure mWC Hd Evaporation pressure mWC v Flow vel...

Страница 6: ...ssure applied to the closed valve must not exceed its rated pressure The VAG EKN Butterfly Valve has its limit stop in the gearbox This stop limits both the open and the closed position Due to the automatic lock of the gear it suffices to touch the end position Do not tighten it as this will not improve the tightness of the valve VAG Operation and Maintenance Instructions 6 Permanent operation of ...

Страница 7: ...operational pressure of the medium is maintained on the opposite side of the disk The UVV lock is operated by pushing the movable bolts when required with a handwheel radially in the direction of the pipe centre behind the disk in the closed position The position of the Picture 6 VAG EKN Butterfly Valve with UVV safety interlock Type Fixed stops Movable bolts Illustration Single sided lock 0 3 sid...

Страница 8: ... assembly in drinking water pipelines suitable sealing mate rials lubricants and process materials must be used which are approved for use in drinking water pipelines Before putting the valve into operation clean and purge the cor responding pipeline sections 4 2 Installation location The installation location of the valve must be selected to provide sufficient space for function checks and mainte...

Страница 9: ...y Valve at elbows and branches unfavourable ideal 3 X DN EKN EKN favourable EKN When installing a butterfly valve downstream of a control valve or a plunger valve make sure that there is enough space between them minimum 10 x DN Picture 10 Installation of the VAG EKN Butterfly Valve with control valves installed upstream min 10 X DN VAG Operation and Maintenance Instructions 9 Branches and elbows ...

Страница 10: ...lation 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 outlet side gear on the right B Flow on the side away from the shaft seat surface on the inlet side gear on the left C Flow on the side away from the shaft seat surface on the inlet side gear on the right D Flow on shaft side seat surface on the ou...

Страница 11: ...cal position without restrictions with the gear facing 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 Picture 13 Installation positions permissible impermissible DN 1000 vertical installation position VAG Operation and Maintenance Instructions 11 hori...

Страница 12: ...ne it is connected to are aligned and level with each other Welding works on the pipeline must be performed be fore the valves 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 prevents harmful pipeline forces from being transmitted to the valve body Should co...

Страница 13: ... to be observed and the external source of energy must be switched off and isolated Special care needs to be taken in case of hot surfaces Touching hot surfaces may result in burns Even when the de vice is switched off residual heat may cause burns Prior to any work make sure that the surface has cooled down to room temperature 6 2 Operating torques Operating torques are the maximum required torqu...

Страница 14: ...AG EKN Butterfly Valve with VAG HYsec hydraulic brake and lift unit 7 1 General safety instructions Prior to the performance of inspection and mainte nance work on the valve or its assemblies shut off the pressurised pipeline depressurise it and secure it against inadvertent activation Depending on the type and risk of the fluid conveyed comply with all required safety regulations After completing...

Страница 15: ... M and B Design and sub assemblies VAG Operation and Maintenance Instructions 15 A A B B C C D D E E F F Fuer diese Unterlagen behalten wir uns alle Rechte auch fuer den Fall der Patenterteilung und der Eintragung eines anderen gewerblichen Schutzrechtes vor Missbraeuchliche Verwendung wie insbesondere Vervielfaeltigung und Weitergabe an Dritte ist nicht gestattet sie kann zivil und strafrechtlich...

Страница 16: ...rofile seal 3 emerges from the body Unfasten the retaining ring screws 5 1 Remove retaining ring 1 and sealing ring 3 Clean the disk 2 in the sealing zone Check the seat ring in the body for damage or deposits Insert the new sealing ring into the groove of the disk and slight ly grease it with KLÜBERSYNTH VR 69 252 Insert the hexagonal screws 5 1 and fasten them using the torque specified in Table...

Страница 17: ...ues of retaining ring screws Picture 23 Tightening torques of retaining ring screws Bearing flange fixing screws Table 2 Tightening torques of bearing flange fixing screws Picture 24 Anzugsmomente Lagerflansch Fixierschrauben VAG Operation and Maintenance Instructions 17 Bearing flange fixing screw Pos 15 M 6 M 8 M 10 M 12 4 Nm 8 Nm 15 Nm 28 Nm Retaining ring screws Pos 5 1 M 6 M 8 M 10 M 12 M 16 ...

Страница 18: ...gn matter Gear blocked Undo block No electrical connection of elec tric actuator Establish electrical connection Unfavourable flow and impair ment of movement Change installation position Leaks in the body seat Valve not completely closed yet Close valve completely Valve seal damaged or worn Replace seal Cavitation in valve Valve operating beyond its design limits Butterfly valve not suitable for ...

Страница 19: ...Carl Reuther Str 1 68305 Mannheim Germany Phone 49 621 749 0 Fax 49 621 749 2153 info vag group com http www vag group com Service Our service hotline can be reached 24 7 world wide In case of emergency please contact us by phone Service hotline 49 621 749 2222 Service per email service vag group com ...

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