28 Inch DBB Trunnion Ball Valve, API 6D, F55, CL600 LB, RF

This 28-inch (DN700) DBB Trunnion Ball Valve is manufactured in accordance with API 6D and BS 5351 standards, ensuring reliable isolation and double block and bleed performance in critical pipeline systems. The valve features a high-strength ASTM A182 F55 super duplex stainless steel body, offering exceptional resistance to corrosion, pitting, and harsh service environments. The F304 stainless steel trim provides dependable sealing and durability. Rated at Class 600 LB, it is built for high-pressure applications across oil, gas, and petrochemical industries. Its full welded construction enhances structural integrity and eliminates potential leakage paths, while RF flanged ends ensure secure and standardized installation. As a leading DBB Trunnion Ball Valve Factory in China, we deliver robust, precision-engineered valve solutions for demanding operations.
 

Valve Description:
181302057 DBB Trunnion Mounted Ball Valves
Design Standard: API 6D, BS 5351
Structure: Full Welded
Bore Type: Full Bore or Reduced Bore
Sizes: 28 Inch, DN700, 700 mm
Nominal Class: Class 600 LB, PN100
Body Material: ASTM A182 F55, ASTM A182 F53, ASTM A182 F51, ASTM A105N, ASTM A182 F316, ASTM A350 LF2, Inconel 625, ASTM A182 F304
Trim Material: ASTM A182 F6A, F304, F316, F51, F53, F55, A105+ENP, LF2+ENP
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Test and Inspection: API 598, API 6D
Face to Face: ASME B16.10
Operation: Gear
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.