Key Specifications / Features
This 8-inch (DN200 / 200 mm) DBB ball valve is designed for high-reliability pipeline applications, combining safety, durability, and precision. Its ASTM A182 F51 stainless steel body with A105+ENP trim ensures excellent corrosion resistance and long-term performance in demanding environments. Rated Class 150 LB (PN20), featuring RF flanged ends and a full-welded construction, the valve provides secure sealing and leak-free operation. The gear-operated mechanism allows smooth and controlled actuation, even under high-pressure conditions. Engineered to meet API 6D standards, it delivers robust performance and operational safety. As a leading China DBB ball valve manufacturer, we offer reliable, high-quality solutions.
Valve Description:
181302006 Trunnion-Mounted Ball Valve, Double Block&Bleed(DBB) Ball Valve
Design Standard: API 6D, BS 5351
Structure: Full Welded
Nominal Size: 8 Inch, DN200, 200mm
Nominal Class: Class 150 LB
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
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
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.
