We can offer double isolation and bleed valves in various configurations in all materials: Carbon steel, Stainless steel, Duplex, 6Mo and Titanium.
DIB-1 Both Seats Bidirectional
DIB-2 One seat Undirectional and One Seat Bidirectional
According to API 6D Table K.1 specify the following valves that can be used as double isolation and bleed valve:
Two block valves with bleed between, Slab and/or through conduit gate DIB-1, Trunnion Mounted ball valve DIB-2, Expending plug DIB-1 and expending gate DIB-2. Some valves may have preffered sealing direction and/or specified sequence of operation.
All double isloation & bleed valves are also working as double block and bleed (DBB) valve.
½″ – 60″, Reduce and Full bore
ANSI 150lbs – 2500lbs, API 3000-15000psi
|End Connections available||
compact flanged, RF/RJ Flanged, SW / NPT / BW
API, ASME, ASTM, BS, Cryogenic service, ISO, MSS & NACE
Chemical, Offshore/Onshore, Oil & Gas, Petrochemical, Pipelines, Power Generation, Subsea, Water Industries