INSTALLATION, OPERATION AND MAINTENANCE
VSI AWWA C504 REPLACEABLE SEAT BUTTERFLY VALVES
© 2022 VSI Waterworks LLC 504-108
03-22
Sec. 5.3 Adjustable Seats
Sec. 5.4 Foreign Material
Sec. 5.5 Pipe Ends
Sec. 5.6 Wafer Valves
Sec. 5.7 Installation Location and Orientation
Sec. 5.8 Valve Boxes and Buried Service
Sec. 5.9 Vaults
SECTION 6 - TESTING
Sec. 6.1 Hydrostatic testing
Sec. 6.2 Valve flushing
Sec. 6.3 Seat leakage
