Product Name: One Piece DBB Ball Valve
Design Standard: EEMUA 182
Body Material: ASTM A182 F316L
Size: Customized
Pressure: Customized
End Connection: RF*FNPT
Operation: Lever
Double Block and Bleed (DBB) Valves provide double isolation through two obturators inserted within a single body, ensuring reliable isolation. The bleed/vent system between the obturators (body port and ball, gate, or needle valve) enables efficient bleed functionality.
DBB ball valves, available in various designs, allow a pipe section to be isolated from both sides of the valve, providing enhanced safety by preventing accidental leaks that could cause harm. This feature is particularly valuable in the oil and gas industry. With robust security features, these valves also reduce the need for additional valves, saving space and reducing costs.
Technical Specifications
» Size Range: NPS 1/2-2 Inch (DN15-DN50)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Materials: Forged Carbon Steel, Stainless Steel, Duplex, or Special Alloys (ASTM A105N, A350 LF2, A182 F11, F22, F304, F304L, F316, F316L)
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other special materials
» End Connections: Flanged x Flanged, Flanged x FNPT
» Operation: Handle, Worm Gear, Electric, Pneumatic
» Temperature Range: -46°C to 350°C
» Medium: Water, Gas, Oil
» Standards
Design and Manufacture: API 6D, BS 5351, ASME B16.34
Face-to-Face Dimensions: Manufacturer's standard
Flanged Connections: ASME B16.5
Test and Inspection: EEMUA 182, API 598
Threaded Ends: ASME B1.20.1
Fire Safety: API 607, API 6A
Product Features
» DBB Integrated Body with Dual-Type Design
» Side Entry Forged Steel Valves
» Top-Entry Design Available on Request
» Low Pressure Loss Through the Valve
» Low Actuation Torque
» Full Bore or Reduced Bore
» Materials with Anti-Corrosion Properties (NACE MR 0175 Compliant)
» Metal-Sealed Seat Pocket Area Overlay
» Seal Area Overlay or Cladding on Wetted Surface (Welded Overlays in Inconel 625, Stainless Steel 316, etc., or Electroless Nickel Plating)