Sud Robinetterie Industrie (SRi)
SRI - Double Block and Bleed Trunnion Ball Valve (DBB)
Double Block and Bleed (DBB) ball valve is made of two balls in one valve body. A bleeder is added between the two balls of the valve. This system is equivalent to a Double Isolation Bleed (DIB) single ball valve.
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Range
- ND 3/4" (DN20) to ND 24" (DN600)
Classes
- ASME CLASS 150 to 2500
- DIN-PN PN 10 to 64
Material
- Carbon & low alloy Steels
- Stainless steels
- Duplex & Super Duplex
- Nickel Alloys
- Titanium
- API 6D/6A design & construction
- API 6D & ASME B1610 face to face
- Antistatic device
- Double block and bleed (DBB)
- Drain plug
On request
- Full/reduced/customize bore
- Manual or actuated operation
Optional Design features
- Automatic bleeding system
- By-pass system
- Double Piston Effect (DPE)
- Double Isolation & Bleed (DIB)
- ENP on seat/ball/stem/body
- Extended stem
- Heating jacket
- Locking device
- Metal to metal seats
- Needle plug
- Overlay on seat pocket
- Overlay on dynamic seal pockets
- Overlay on all wetted parts
- Polymeric lip-seals
- Single Piston Effect
- Stem injection fitting
- Seat injection fitting
- Transition pups pieces BW ends