Product Name: DBB Floating Ball Valve
Features: Double Block and Bleed, Side Entry, Forged Steel
Design Standard: EEMUA 182
Body Material: Customized
Size: Customized
Pressure: Class 1500 LB, PN250
End Connection: RTJ Flanged + FNPT
Operation: Lever
Double Block and Bleed Valves are designed to ensure double isolation by incorporating two obturators within a single body, with a bleed/vent system positioned between the obturators (body port and ball, gate, or needle valve). Derived from the floating ball valve design, these DBB valves are available in various constructions to meet diverse application needs.
Double block and bleed ball valves (DBB ball valves) effectively isolate a pipe section from both ends, providing a secure and reliable shut-off. This design minimizes the risk of accidental leaks, ensuring safety in critical applications such as the oil and gas industry. In addition to robust safety features, these valves optimize system efficiency by reducing the need for additional valves, saving both space and costs.
Technical Specification
» Size Range: NPS 1/2–2 Inch (DN15–DN50)
» Design Pressure: Class 150–2500 LB (PN10–PN420)
» Temperature Range: -46°C to 350°C
» Materials:
Body: Forged Carbon Steel, Stainless Steel, Duplex, or Other Special Alloys (ASTM A105N, A352 LF2, A182 F11, F22, F304, F304L, F316, F316L)
Trim: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other specials
» Medium: Water, Gas, Oil, etc.
» End Connections: Flanged x Flanged, Flanged x FNPT
» Operation: Handle, Worm Gear, Electric, Pneumatic
» Standards
Design and Manufacture: API 6D, BS 5351, ASME B16.34
Face to Face (End to End): Manufacturer's Standard
Flanged Connection: ASME B16.5
Threaded Ends: ASME B1.20.1
Test and Inspection: EEMUA 182, API 598
Fire Safety: API 607, API 6A
Product Features
» DBB Integrated Body with Dual Type Design
» Side Entry Forged Steel Valves
» Optional Top-Entry Design upon Request
» Low Pressure Loss Through the Valve
» Low Actuation Torque
» Available in Full Bore or Reduced Bore
» Materials with Anti-Corrosion Properties as per NACE MR 0175
» Metal Sealed Seat Pocket Area Overlay, Seal Area Overlay, or Complete Cladding on Wetted Surface (Welded Overlays in Inconel 625, Stainless Steel 316, etc., or Electroless Nickel Plating)