Key Specifications / Features
This 48-inch Full Welded DBB Trunnion Ball Valve is designed for high-pressure, large-diameter pipeline systems, providing reliable isolation and leak-proof performance. Constructed to API 6D standards, it features a durable ASTM A182 F51 body with F304 trim, ensuring excellent corrosion resistance and long service life. The valve’s double ball design, combined with RF flanged ends and gear operation, allows smooth, precise control even in demanding applications. Rated Class 300 LB, DN1200, it is ideal for oil, gas, and chemical industries requiring high-performance, robust flow control solutions. As a leading DBB Trunnion Ball Valves supplier in China, we deliver quality and reliability for critical pipeline systems.
Valve Description:
181302042 DBB Trunnion Ball Valve, Double Block & Bleed Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 48 Inches, DN1200
Nominal Class: Class 300 LB, PN50
Body Material: ASTM A182 F51, ASTM A182 F316, ASTM A350 LF2, Inconel 625, ASTM A105N, ASTM A182 F53, ASTM A182 F304, F55
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
Structure: Full Welded
Test and Inspection: API 598, API 6D
Face to Face: ASME B16.10
Bore Type: Full Bore or Reduced Bore
Operation: Gear
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
End Connection: RF 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 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.
