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Summary of Contents for Vag EKN AWWA
- Page 1 Operation and Maintenance Instructions ® VAG EKN Butterfly Valve Type AWWA KAT 1321-B Edition2 10-12...
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Page 2: Table Of Contents
Table of Content 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 Warning levels 1.3 Proper use 1.4 Identification Transport and Storage 2.1 Transport... -
Page 3: Safety
Material damage to the unit or its surroundings Arbitrary alterations of this product and the parts supplied with it are not allowed. VAG will not assume any liability for consequen- tial damage due to non-compliance with these instructions.When 1.3 Proper use using this valve, the generally acknowledged rules of technology have to be observed (e.g. -
Page 4: Transport And Storage
- Wear protective equipment (safety helmet, safety gloves and When selecting and using stop devices, take the weight and the safety shoes). stop type into account. For the respective weights of the VAG - Make sure that no attachments can be jammed. ®... -
Page 5: Storage
The use of the valve with media containing gas or oil may result in the destruction of the EPDM seals (rubber lining) and O-rings and is therefore not permissible. VAG EKN AWWA Butterfly Valves are designed acc. AWWA 504 Picture 4: Storage of the VAG EKN ®... -
Page 6: Maximum Permissible Flow Velocity
/ Caution VAG EKN AWWA Butterfly Valves are designed acc. AWWA 504 For assembly in drinking water pipelines, suitable sealing mate- standard with maximum working pressure of 150 psi g and a ma- rials, lubricants and process materials must be used which are ximum full open velocity of 16 ft / sec. -
Page 7: Installations In The Pipeline Upstream And Down- Stream Of The Valve
® Butterfly Valve an inspection valve, an elbow, T-pieces and Y-filters should be provided as other- wise irregular flow may disturb the proper function of the VAG ® Butterfly Valve. • A damping zone between the branch/elbow and the valve is ideal. - Page 8 • In case of valves with larger nominal diameters, a special design of the valve must be ordered due to the load of the disk. vertically installation Picture 7: Vertical installation of the VAG EKN ® Butterfly Valve VAG Operation and Maintenance Instructions • 8...
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Page 9: Gear Positions
• 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 outlet side, gear on the left Picture 8: Possible gear positions VAG Operation and Maintenance Instructions • 9... -
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 any liability for consequential damage caused by dirt, Caution: When a pressure test is performed in the pipeline with a shot-blasting gravel residues etc. -
Page 12: Operating Torques
Warning: Uncontrolled rotation of the valve shaft!. tion. Danger of damage to the VAG Butterfly Valve / Pipeline If, in intermediate position, a foreign body gets jammed in the system! Death or serious injury can result if body parts or valve, this may result in higher operating forces –... -
Page 13: Maintenance And Repair
This training course can e.g. be held by VAG Service employees. In addition to this, the plant operator needs to ensure that all employees have 7.3 Maintenance work and replacement of understood these Operation and Maintenance Instructions as well as all further instructions referred to in them. -
Page 14: Replacement Of The Profile Seal
• Before mounting the gear, check whether the disk position and • In the depressurised pipeline, the hexagonal screws (14) are the gear position match Picture 12: Replacement of O-ring - Step 1 Picture 15: Replacement of O-ring - Step 4 VAG Operation and Maintenance Instructions • 14... -
Page 15: 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 • 15... - Page 16 info@vag-group.com...