ASTM A350 LF2 DBB Ball Valves, API 6D, 1/2 IN, CL1500, Lever

The China ASTM A350 LF2 Ball Valve Plant offers a high-quality 1/2 inch (DN15) ball valve with a Double Block & Bleed design, ensuring reliable isolation and safety. Manufactured in compliance with API 6D standards, this valve features Class 1500 LB (PN250) pressure rating, making it suitable for demanding applications. It comes with flanged ends for easy installation and is equipped with a lever for convenient operation.

Product Name: ASTM A350 LF2 Double Block & Bleed Ball Valve
Design Standard: API 6D
Body Material: ASTM A350 LF2
Size: 1/2 Inch, DN15
Pressure: Class 1500 LB, PN250
End Connection: Flanged
Operation: Lever

Double Block and Bleed (DBB) Valves are designed to provide double isolation through two obturators within a single body. These valves offer a bleed function via a bleed/vent system positioned between the obturators (body port and ball, gate, or needle valve). The DBB valve design, derived from floating ball valves, ensures reliable isolation and bleeding. This design allows for a pipe section to be shut down from both sides, enhancing safety by preventing accidental leaks. Widely used in the oil and gas industry, our DBB valves not only improve safety but also minimize the need for additional valves, saving both space and 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, with optional top-entry design upon request
» Low pressure loss through the valve
» Low actuation torque for easy operation
» Available in full bore or reduced bore configurations
» Materials with anti-corrosion properties compliant with NACE MR 0175
» Metal-sealed seat pocket area overlay, seal area overlay, or complete cladding on wetted surfaces (including welded overlays in Inconel 625, Stainless Steel 316, or Electroless Nickel Plating)