DBB Double Block and Bleed Ball Valve

Double Block & Bleed functionality with floating and trunnion-mounted configurations. Fire-safe design compliant with ASME B16.34, API 6D.

DBB Double Block and Bleed Ball Valve

DBB Main View

Product Specifications

Design Floating and trunnion-mounted configurations, DBB functionality, modular design
Construction Compliant with ASME B16.34, ASME VIII Div. II
Connections Flanged, welded, or clamp type ends
Bore Full/reduced
Actuation Interface ISO 5211 top work standardization
Seat Leakage API6D/API598
Certifications Fire-safe certified (API 607, API 6FA)
Special Features Antistatic device & anti-blowout stem; metal seat optional
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Structure Diagram

DBB Structure Diagram

Component List

  • 01 - BODY
  • 02 - BONNET
  • 03 - BALL
  • 04 - SEAT
  • 05 - STEM
  • 08 - FLANGE
  • 16 - GASKET STEM SPACER
  • 21 - T-LEVER
  • 23 - PIN
  • 51 - SECOND T-LEVER
  • 57 - LEVER STOP
  • 64 - CAP SCREW
  • 77 - CAP SCREW
  • 92 - BEARING
  • 94 - GASKET
  • 96 - GASKET
  • 100 - LIP-SEAL
  • 101 - GASKET
  • 106 - LIP-SEAL
  • 107 - GASKET
  • 137 - PIN
  • 157 - BLEEDER
  • 158 - NEEDLE VALVE

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