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Summary of Contents for Vag EKN
- Page 1 Operation and Maintenance Instructions ® VAG EKN Butterfly Valve KAT 1310-B Edition4 05-13...
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Page 2: Table Of Contents
Table of Contents VAG reserves the right to make technical changes and General use materials of similar or better quality without express notice. The pictures are non-binding. 1.1 Safety 1.2 Proper use 1.3 Identification Transport and Storage 2.1 Transport 2.2 Storage Product features 3.1 Features and function description... -
Page 3: General
VAG EKN ® General Butterfly Valve. 1.1 Safety Observing these Operation and Maintenance Instructions helps you to: These Operation and Maintenance Instructions must be observed and applied at all times along with the ge- •... -
Page 4: Storage
® Butterfly 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 factory-packed in transport crates (wooden crates), the centre of gravity of the entire unit must be taken into account. -
Page 5: Applications
• Pressure rating PN 40: 6m/s The operational limits can be calculated either using the VAG UseCAD ® Planning Software or the following calculation rules:... -
Page 6: Permissible And Impermissible Modes Of Operation
Example of a limit curve of the VAG EKN ® Butterfly Valve 3.5 Special type with UVV safety interlock At a pressure of 5 bars and a flow velocity of 8 m/s, the hy- draulic moment of the flow around the disk is so high that a... -
Page 7: Installation Into The Pipeline
Butterfly Valve with UVV safety interlock, secured by a bolt and a padlock 4.2.1 Installations in the pipeline upstream and downstream of the valve • If the valve is used in contaminated media, a filter with a suitable VAG Operation and Maintenance Instructions • 7... - Page 8 VAG EKN ® Butterfly mesh size must be provided upstream of the valve in order to Valve. prevent malfunction. • Directly upstream of (3 x DN) ) and downstream of (3 x DN) •...
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Page 9: Gear Positions
Picture 11: Vertical installation of the VAG EKN ® Butterfly Valve • B: Flow on the side away from the shaft, seat surface on the 4.2.2 Gear positions... -
Page 10: Installation Position
(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. permissible... -
Page 11: Assembly Instructions And Fittings
VAG does not assume 5.2 Function check and pressure test any liability for consequential damage caused by dirt, shot-blas- ting gravel residues etc. -
Page 12: Operating Torques
For the about the respective torques and/or controlling torques for elec- adjustment procedure, please refer to the operating manual issu- tric actuators. ed by the manufacturer of the electric actuator. Picture 14: Gearbox markings VAG Operation and Maintenance Instructions • 12... -
Page 13: Valves With Vag Hysec Hydraulic Brake-And-Lift Units
Perform the steps described for initial set-up as described under Section 5 “Set-up To butterfly valves equipped with a VAG HYsec hydraulic brake- and operation”. and-lift unit, the order-related operating instructions apply in each case (see KAT-B-5512). -
Page 14: Inspection And Operation Intervals
This training • Remove retaining ring (1) and sealing ring (3) course can e.g. be held by VAG Service employees. • Clean the disk (2) in the sealing zone In addition to this, the plant operator needs to ensure that all •... -
Page 15: Tightening Torques For Screws
AUMA worm gear units are adjusted as specified in the AUMA 90° Gear Operation Manual. Picture 23: Tightening torques of bearing flange / fixing screws VAG Operation and Maintenance Instructions • 15... -
Page 16: Trouble-Shooting
Seat of the valve polluted by deposits Flush valve, dismantle, if necessary, and clean seat area High operating forces Valve is dry in pipeline, no medium present Valve can be operated more easily when wet VAG Operation and Maintenance Instructions • 16... - Page 17 info@vag-group.com...