DBB Floating Ball Valves, CS, SS, DSS, 1-13/16 * 1/2 Inch

Product Name: Double Block & Bleed Ball Valve
Type: Floating Ball Valve, DBB
Body Material: Carbon Steel, Stainless Steel, Duplex Stainless Steel
Size: 1-13/16 Inch * 1/2 Inch
Pressure Rating: 10000 PSI
Operation: Lever
Ends Connections: Flanged * Flanged, Flanged * FNPT
Temperature Range: -46°C to 350°C

Double Block and Bleed (DBB) Valves ensure a true double-isolation function by incorporating two obturators within a single valve body. They provide a bleed function through a bleed/vent system located between the obturators, using a body port with a ball, gate, or needle valve. Derived from floating ball valve design principles, our DBB valves are available in several construction types. Double block and bleed ball valves (DBB ball valves) enable a pipeline section to be isolated from both upstream and downstream sides. This design enhances safety by preventing accidental leaks that could cause harm, making the valves highly effective for oil and gas applications. In addition to robust safety performance, our valves reduce the need for extra components, saving both installation space and overall cost.

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-type design
» Side-entry forged steel construction
» Top-entry design available upon request
» Minimal pressure loss through the valve
» Low actuation torque
» Full-bore or reduced-bore options
» Anti-corrosion materials compliant with NACE MR0175
» Metal-sealed seat pocket overlay, sealing area overlay, or complete cladding on wetted surfaces (welded overlays in Inconel 625, Stainless Steel 316, etc., or electroless nickel plating)