Double Block & Bleed Valves
A DBB or DIB valve can execute the functions of 3 separate valves having 2 separate isolations and 1 drain Valve. So it saves a huge amount of space and weight which are advantages for FPSO’s and oil platforms. Double Block & Bleed valves can be supplied according to API6D and API6A.
request now
Petrosa co
Design
Floating or trunnion mounted - single or double ball
Seats
Soft or metal seated
Construction
One piece body (top, side or end entry), split body (two or three piece)
Size ANSI
0,25” - 16”
Pressure ANSI
150 lbs - 4500 lbs
Size DN
DN 6 - DN 400
Pressure PN
PN 10 - PN 400
End connections
Flanged, BW, SW, THR, HUB, PE
Operated
Lever, gear, bare stem, actuator
Seat materials
Graphite, Devlon, TFM, PTFE, PEEK, POM, PCTFE
Hard facing
Various hard facing on ball and seats
Options
Extended stem, Extended bonnet, Single or double piston design
Design & testing
All available international standards according to API - EN - ISO
Petrosa co
- Duplex, Super Duplex, Stainless Steel, Carbon Steel
- Alloy 600, Alloy 625, C 276, Alloy 800, Alloy 825
- Titanium
- Zirconium
