Key Specifications / Features
This DBB trunnion mounted ball valve is manufactured in accordance with API 6D, featuring a corrosion-resistant ASTM A182 F304 stainless steel body and trim for reliable performance in demanding applications. With a large 40-inch size and Class 300 LB pressure rating, it is designed for high-capacity and high-pressure pipeline systems. The fully welded construction enhances structural strength and minimizes external leakage, while RF flanged ends ensure secure and easy installation. Gear operation provides smooth, precise control with reduced operating torque. As a leading trunnion mounted ball valve supplier in China, we deliver durable, high-quality DBB valve solutions for oil, gas, and industrial services.
Valve Description:
181302040 DBB Trunnion Mounted Ball Valve, Double Block & Bleed Ball Valve
Design Standard: API 6D, BS 5351
Structure: Full Welded
Size: 40 Inch
Nominal Class: Class 300 LB
Bore Type: Full Bore or Reduced Bore
End Connection: RF Flanged
Operation: Gear
Body Material: ASTM A182 F304, ASTM A105N or ASTM A350 LF2
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
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.
