Key Specifications / Features
This Double Block & Bleed (DBB) ball valve is engineered for high-pressure isolation applications, combining safety, reliability, and efficiency in one unit. Fully welded and trunnion mounted, it is built to API 6D and BS 5351 standards, ensuring superior performance under demanding industrial conditions. Constructed from stainless steel ASTM A182 F55, the valve offers excellent corrosion resistance, strength, and durability. With a 10-inch size, Class 2500 LB rating, and RTJ flanged ends, it delivers secure sealing, leak-proof operation, and smooth integration into piping systems. As a leading DBB Ball Valve Manufacturer from China, we provide premium valves designed for long-term reliability, safety, and precision control.
Valve Description:
181302112 DBB Ball Valves, Trunnion Mounted Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 10 Inches, DN250
Pressure: Class 2500 LB, PN420
Body Material: ASTM A182 F55, ASTM A182 F51, ASTM A182 F304, ASTM A105N, ASTM A182 F316, ASTM A350 LF2, Inconel 625, ASTM A182 F53
Bore Type: Full Bore or Reduced Bore
Trim Material: ASTM A182 F304, ASTM A182 F6A, ASTM A182 F316, F51, F53, F55, A105+ENP, LF2+ENP
Structure: Full Welded
Face to Face: ASME B16.10
Test and Inspection: API 598, API 6D
End Connection: RTJ Flanged
Operation: Gear
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
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 Inch - 48 Inch (DN15 - DN1200)
Pressure Range: Class 150 LB - 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.
