Type : Double Block & Bleed Valve, ANSI 2500
Pressure : ANSI 2500
Temperature : 240 C
Size : 1/2” ~ 3”
Connection : Flange
Body : SS 316
Seat : Metal to Metal
Oliver D series Double Block & Bleed Valve is Flange connection.
https://www.valves.co.uk/instrumentation-valves/forged-dbbs/d-type-dbb