Key Specifications / Features
This Trunnion Mounted Double Block & Bleed (DBB) Ball Valve is engineered for high-pressure, large-diameter applications, combining durability and precise flow control. Constructed with an ASTM A182 F55 body and F6A trim, it ensures exceptional corrosion resistance and long-term reliability in demanding industrial environments. Compliant with API 6D and BS 5351 standards, this 28-inch (DN700) valve is rated Class 1500 LB and features RTJ flanged ends for secure, leak-proof connections. Designed for minimal pressure drop and stable operation, it is ideal for oil, gas, and petrochemical pipelines. As a leading DBB Ball Valves Manufacturer from China, we provide high-quality, precision-engineered valves tailored for critical industrial applications.
Valve Description:
181302099 DBB Trunnion Mounted Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 28 Inch, DN700, 700 mm
Pressure: Class 1500 LB, PN250
Body Material: ASTM A182 F55, ASTM A182 F53, ASTM A350 LF2, Inconel 625, ASTM A182 F316, ASTM A105N, ASTM A182 F51, ASTM A182 F304
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Face to Face: ASME B16.10
Test and Inspection: API 598, API 6D
Operation: Gear
Structure: Full Welded
Bore Type: Full Bore or Reduced Bore
End Connection: RTJ Flanged
Key Features: Double Block & Bleed(DBB), Anti-static Device, Fire Safe, Anti-Blowout Stem, Emergency sealant injection, Low Emission(Optional), DIB (Optional), full welded bonnet, Double Ball/Twin Ball
Product Range:
Body Material: Carbon Steel, Stainless Steel, Alloy Steel
Normal Diameter: 1/2 - 48 Inch (DN15 - DN1200)
Pressure Range: 150 - 2500 LB
End Connection: RF, RTJ, BW, HUB
Working Temperature: -26°C - +150°C
Operation: Manual(lever, gear), Pneumatic Actuator, Motor Actuator
DESIGN FEATURES:
• Renewable solid wedges.
• Integral seats.
• High-Tensile bronze alloy stem.
• Stems are rotating/rising design.
• Each valve is shell and seat pressure tested per industry standard MSS SP-80.
