Key Specifications / Features
The DBB (Double Block & Bleed) Ball Valve is designed for reliable isolation and safe bleeding in demanding pipeline systems. Constructed with a BS 5351-compliant, carbon steel ASTM A105N body and A182 F6A trim, it delivers excellent strength and corrosion resistance. This 10-inch (250 mm), Class 150 LB, PN20 valve features trunnion-mounted design and RF flanged ends for secure, precise operation under high-pressure conditions. Engineered for durability and smooth control, it is ideal for oil, gas, and industrial applications. As a leading DBB Ball Valve factory from China, we provide high-quality, dependable valves tailored to global standards.
Valve Description:
181302007 Trunnion-Mounted Ball Valve, Double Block&Bleed(DBB) Ball Valve
Design Standard: BS 5351, API 6D
Structure: Full Welded
Nominal Size: 10 Inch, DN250, 250mm
Nominal Class: Class 150 LB, PN20
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Bore Type: Full Bore or Reduced Bore
Body Material: ASTM A105N, ASTM A350 LF2, ASTM A182 F304, F316, F51, F53, F55, Inconel 625
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
End Connection: RF Flanged
Operation: Gear
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 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.
