Valbart Double Block and Bleed (DBB) Trunnion Mounted Ball Valve
This side-entry trunnion mounted ball valve combines two in-line isolation valves and a bleed port in one bolted- or welded-body assembly. Designed for upstream, midstream and downstream oil and gas service, it enables trapped fluid to be drained or vented for safer downstream pipe isolation.
- Compact assembly reduces space, weight and installation requirements
- Integrated bleed port supports controlled draining or venting between closures
- Single-valve configuration helps improve system reliability
- Anti-blowout stem, fire-safe construction and anti-static design enhance safety
- API 6D/6A
- ASME B16.34
- NACE MR0175
- API 6FA/API 607/API598
Size Range:
- 2 1/2 to 56 (API 6D Valves)
- 1 13/16" to 16 3/4" (API 6A Valves)
Pressure Class Range:
- 2000 psi to 10000 psi
- Class 150 to 2500
Seating Material: Soft or Metal
Standard
- Cast or forged components-bolted body design
- Seals: O-Ring + graphite fire safe
- Soft seated/Metal seated
- Fittings: stem and seat greaser
- Self relieving or double piston effect seats
- Double block bleed
- Fire-safe
- Anti-static automatic
- Cavity relief
Cryogenic
- Cast or forged components-bolted body design
- Seals: Lip-seal + graphite fire safe
- Soft seated/metal seated
- Self relieving or double piston effect seats
- Double block bleed
- Extended bonnet
- Fire-safe
- Anti-static automatic
- Cavity relief
High Temperature
- Cast or forged components-bolted body design
- Seals: Spiral wound or graphite
- Metal seated
- Self relieving seats
- Double block bleed
- Extended bonnet
- Fire safe
- Anti-static automatic
- Cavity relief
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