Double Block & Bleed Trunnion Ball Valve, API 6D, F53, 26 IN

This double block and bleed ball valve is engineered for high-integrity isolation in critical pipeline systems. Designed with a trunnion-mounted structure and manufactured to API 6D standards, it delivers reliable shutoff, stable operation, and enhanced safety. The fully welded construction with ASTM A182 F53 duplex stainless steel body and trim provides outstanding strength, corrosion resistance, and long service life in demanding environments. Supplied in 26-inch size (DN650, 650 mm), Class 150 LB, with RF flanged connections, it ensures secure installation and leak-tight performance. As a professional DBB ball valve supplier from China, we provide precision-engineered solutions for global oil, gas, and industrial applications.
 

Valve Description:
181302014 DBB Trunnion Mounted Ball Valve, Double Block & Bleed Ball Valve
Design Standard: API 6D, BS 5351
Nominal Size: 26 Inch, DN650, 650 mm
Nominal Class: Class 150 LB, PN20
Bore Type: Full Bore or Reduced Bore
Test and Inspection: API 598, API 6D
Structure: Full Welded
Operation: Gear
Body Material: ASTM A182 F53, ASTM A182 F51, ASTM A105N, ASTM A350 LF2, ASTM A182 F304, ASTM A182 F316, F55, Inconel 625
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
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.