Key Specifications / Features
This DBB Trunnion-Mounted Ball Valve is engineered in accordance with API 6D requirements, providing secure double isolation and reliable bleed capability for critical pipeline applications. Featuring a robust ASTM A182 F55 body with A182 F6A trim, it offers excellent mechanical strength, corrosion resistance, and long-term durability in demanding service conditions. The valve is supplied in 10 inch (DN250) size with a Class 300 LB pressure rating and RF flanged ends for dependable, leak-tight installation. Designed for stable performance and safety, it is ideal for oil, gas, and process systems. As a leading Trunnion-Mounted Ball Valve Provider in China, we deliver consistent quality and tailored solutions.
Valve Description:
181302028 DBB Trunnion Mounted Ball Valve, Double Block and Bleed Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 10 Inch, DN250
Nominal Class: Class 300 LB, PN50
Bore Type: Full Bore or Reduced Bore
Structure: Full Welded
Face to Face: ASME B16.10
Operation: Gear
Test and Inspection: API 598, API 6D
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Body Material: ASTM A182 F55, ASTM A182 F53, ASTM A182 F51, ASTM A182 F316, ASTM A182 F304, ASTM A350 LF2, ASTM A105N, Inconel 625
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
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.
