DBB Trunnion Ball Valve, BS 5351, DN900, PN420, RTJ Flanged

This 36-inch (DN900) double block and bleed (DBB) trunnion-mounted ball valve is engineered to meet API 6D and BS 5351 standards, providing exceptional performance in high-pressure, large-diameter pipeline systems. Constructed with a robust ASTM A350 LF2 body and A105+ENP trim, it ensures superior strength, corrosion resistance, and long-term reliability. Rated at Class 2500 LB with PN420 pressure capability, the valve features RTJ flanged ends for secure, leak-proof connections. Designed for precise flow control, safe isolation, and efficient operation in oil, gas, and industrial applications, this valve exemplifies durability and performance. As a leading DBB trunnion ball valve manufacturer in China, we deliver premium, high-quality valves for critical systems.
 

Valve Description:
181302123 DBB Trunnion Mounted Ball Valve
Design Standard: API 6D, BS 5351
Structure: Full Welded
Body Material: ASTM A350 LF2, Inconel 625, ASTM A182 F53, ASTM A182 F316, ASTM A182 F51, ASTM A182 F304, ASTM A105N, ASTM A182 F55
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
Sizes: 36 Inch, DN900, 900 mm
Pressure: Class 2500 LB, PN420
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Face to Face: ASME B16.10
Test and Inspection: API 598, API 6D
Operation: Gear
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.