Butterfly Valve · Industrial Valves
AFFCO Flow Control (Shanghai) Co., Ltd of China holds DNV Type Approval certificate TAP000029Y for its butterfly valve types S579, S369, S649, S645M/S646M and S575M/S576M, issued on 2026-03-31 and valid until 2031-03-30. Butterfly valves typically regulate or isolate flow with a disc that rotates inside the pipe. The DNV register classifies them as Butterfly Valves, category Mechanical Equipment and Piping.
Butterfly valves of this kind are typically used for isolating or throttling flow in seawater, ballast and other piping systems on board.
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
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