ASTM A105N DBB Ball Valves, EEMUA 182, 1/2 IN, 900 LB, RTJ

Product Name: ASTM A105N DBB Ball Valves
Design Standard: EEMUA 182
Body Material: ASTM A105N
Size: 1/2 Inch, DN15
Pressure: Class 900 LB, PN150
End Connection: RTJ
Operation: Lever

Double Block and Bleed (DBB) Valves provide double isolation through two obturators within a single body. They feature a bleed/vent system positioned between the obturators (such as the body port and ball, gate, or needle valve) to enable the bleed function. The floating ball valve design offers several constructions of DBB valves, making them versatile for various applications. These valves allow for the isolation of a pipe section from both sides, enhancing safety by preventing accidental leaks that could pose harm, particularly in the oil and gas industry. The DBB design also reduces the need for additional valves, providing space and cost savings while maintaining strong security features.

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: Uses a dual type design for enhanced functionality.
» Side Entry Forged Steel Valves: Durable forged steel construction for added strength.
» Top-Entry Design: Available upon request for specific application needs.
» Low Pressure Loss: Minimizes pressure drop through the valve for better flow efficiency.
» Low Actuation Torque: Reduces effort required for valve operation.
» Full Bore or Reduced Bore: Available in both configurations depending on application requirements.
» Anti-Corrosion Materials: Manufactured with materials compliant with NACE MR 0175 for resistance to corrosion.
» Seal Area Overlay: Metal-sealed seat pocket area with options for overlay or cladding on wetted surfaces (using materials such as Inconel 625, Stainless Steel 316, or Electroless Nickel Plating) to ensure durability and resistance to wear.