Key Specifications / Features
This Double Block & Bleed valve is engineered to BS 5351 design standards, delivering reliable isolation and enhanced safety for critical pipeline systems. The carbon steel ASTM A350 LF2 body provides excellent toughness and strength, particularly suitable for low-temperature and demanding service conditions. Equipped with durable F304 stainless steel trim, the valve ensures corrosion resistance, dependable sealing, and long-term performance. With a size of DN400 and a pressure rating of PN100, it features RF flanged ends for secure, leak-tight connections. Ideal for oil, gas, and industrial applications, it supports efficient operation and maintenance. As a leading Trunnion Ball Valve Supplier in China, we offer trusted quality and professional manufacturing expertise.
Valve Description:
181302052 DBB Trunnion Ball Valve, Double Block & Bleed Ball Valve
Design Standard: API 6D, BS 5351
Sizes: 16 Inches, DN400, 400 mm
Nominal Class: Class 600 LB, PN100
Face to Face: ASME B16.10
Bore Type: Full Bore or Reduced Bore
Body Material: ASTM A350 LF2, ASTM A105N, ASTM A182 F55, F51, ASTM A182 F316, Inconel 625, ASTM A182 F53, ASTM A182 F304
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
End Connection: RF Flanged
Test and Inspection: API 598, API 6D
Structure: Full Welded
Operation: Gear
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
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.
