Founded in 1864, DET NORSKE
VERITAS (DNV) is an authoritative, professional, and independent non-profit
foundation. Its headquarter in Oslo, Norway. Under the
principle of “Protecting life, Property and Environment”, DNV
provides customers with comprehensive risk management, various assessment and
certification services, mainly involving ship classification services,
certification services, technical services and so on.
Recently, Sedelon Valve Co., Ltd. produced a batch of
valves certified by the DNV. The certified valves included butterfly valves,
globe valves, and check valves.
Here is valve brief
specification and DNV Survey Report for reference:
Valve Type: Butterfly Valve
Size: 8’’, Class: 150LB
Valve Type: Globe Valve
Size: 12’’, Class: 150LB
Valve Type: Check Valve
Size: 6’’, Class: 150LB
Size: 4’’, Class: 150LB