Product Name: API 6A Double Block & Bleed Ball Valve
Design Standard: API 6A
Body Material: ASTM A182 F51
Size: 1-13/16 * 1/2 Inch
Pressure: 10000 PSI
Operation: Lever
Temperature Range: -46°C to 350°C
Double Block and Bleed (DBB) Valves provide reliable double isolation through two obturators housed within a single body. The bleed function is achieved via a bleed/vent system located between the obturators, which can include a body port and a ball, gate, or needle valve, depending on the valve design. DBB ball valves allow a pipeline section to be shut off from both upstream and downstream sides, providing enhanced safety by preventing accidental leaks that could cause harm. This makes them highly efficient and reliable for oil and gas applications. In addition to their robust safety features, KOSEN DBB valves reduce the need for multiple separate valves, saving both space and costs.
Technical Specification
» Product: DBB Floating Ball Valve
» 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(end to end): 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-Obturator Design
» Side-Entry Forged Steel Construction
» Top-Entry Design Available Upon Request
» Low Pressure Drop Through the Valve
» Low Actuation Torque
» Full Bore or Reduced Bore Options
» Materials with Anti-Corrosion Properties per NACE MR0175
» Metal-Seated Valve with Seat Pocket Overlay, Seal Area Overlay, or Full Cladding on Wetted Surfaces (Welded Overlays in Inconel 625, Stainless Steel 316, or Electroless Nickel Plating)