Key Specifications / Features
As a trusted China trunnion ball valve supplier, we provide high-performance Double Block & Bleed valves designed to API 6D and BS 5351 standards for critical pipeline service. This 48-inch valve features a full welded body made from ASTM A182 F51 duplex stainless steel, ensuring superior strength, corrosion resistance, and structural integrity under demanding conditions. Equipped with LF2 + ENP trim, it delivers enhanced wear protection and reliable sealing. Rated for Class 900 LB pressure, the valve is engineered for high-pressure applications in oil, gas, and petrochemical systems, offering secure isolation, minimal leakage risk, and long-term operational reliability.
Valve Description:
181302084 DBB Ball Valves, Trunnion Mounted Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 48 Inch
Pressure: Class 900 LB, PN150
Bore Type: Full Bore or Reduced Bore
Body Material: ASTM A182 F51, ASTM A182 F304, ASTM A105N, ASTM A182 F55, Inconel 625, ASTM A182 F53, F316, ASTM A350 LF2
End Connection: RTJ Flanged
Face to Face: ASME B16.10
Test and Inspection: API 598, API 6D
Trim Material: ASTM A182 F304, ASTM A182 F6A, ASTM A182 F316, F51, F53, F55, A105+ENP, LF2+ENP
Structure: Full Welded
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.
