TABLE OF CONTENTS
Section Page No.
1. INTRODUCTION .......................................................................................................................................................... 2
1.1. Scope ................................................................................................................................................................. 2
2. WARNINGS .................................................................................................................................................................. 4
3. FAST ACTING VALVE.................................................................................................................................................... 5
3.1. Description ........................................................................................................................................................ 5
3.2. Identification ..................................................................................................................................................... 6
3.3. Composing Parts ............................................................................................................................................... 7
3.4. Dimensions ........................................................................................................................................................ 8
4. VALVE ACTUATOR ASSEMBLY SAFETY PROCEDURES................................................................................................ 10
5. FAST ACTING VALVE INSTALLATION ......................................................................................................................... 11
5.1. Mechanical Installation ................................................................................................................................... 11
5.2. Electrical installation ....................................................................................................................................... 12
5.2.1. Electrical scheme open/close module (Optional) ....................................................................................... 12
5.2.2. Position indicators piston ........................................................................................................................... 12
5.3. Valve Actuator Assembly Installation Procedure ............................................................................................ 13
5.4. Valve Actuator Assembly Removal Procedure ................................................................................................ 13
6. VALVE REFURBISHMENT ........................................................................................................................................... 14
6.1. Valve Actuator Assembly Handling Warning................................................................................................... 14
6.2. FAV Maintenance ............................................................................................................................................ 14
6.2.1. Actuating Cylinder Rebuild ......................................................................................................................... 14
6.2.2. Gate Damper Replacement (DN50 – DN200 FAV) ...................................................................................... 14
6.2.3. Gate Damper Replacement (DN250 – DN500 FAV) .................................................................................... 15
6.3. Roll Pin Replacement ...................................................................................................................................... 15
6.4. Flange O-Ring Replacement ............................................................................................................................ 15
6.5. Flange to FAV Assembly .................................................................................................................................. 16
6.6. Muffler Seal Replacement ............................................................................................................................... 16
6.7. Refurbish Kits .................................................................................................................................................. 16
7. SCHEDULED MAINTENANCE ..................................................................................................................................... 18
7.1. Every Three (3) Months ................................................................................................................................... 18
7.2. Every Ten (10) Years ........................................................................................................................................ 18
7.2.1. Service Environment ................................................................................................................................... 18
8. DE-COMMISSIONING PROCEDURE / CHECK-LIST ..................................................................................................... 19
9. REPAIR AND RETURN AUTHORISATION .................................................................................................................... 20
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