Double Block & Bleed Ball Valve, BS 5351, A182 F51, 4 IN, RF

Key Specifications / Features

Model No. : 181302004

This 4-inch (DN100) Double Block & Bleed Ball Valve is manufactured to BS 5351 standards, featuring a high-strength ASTM A182 F51 duplex stainless steel body and trim for superior corrosion resistance and mechanical performance. Rated at Class 150 LB, it is equipped with RF flanged ends and a fully welded construction to ensure leak-tight sealing and long-term reliability. The lever-operated design allows smooth, precise control and safe isolation in critical pipeline systems. As a leading Double Block & Bleed ball valve provider in China, we deliver dependable, high-quality solutions for global industries.
 

Detail Information

Valve Description:
181302004 DBB Trunnion Mounted Ball Valve
Design Standard: BS 5351, API 6D
Structure: Full Welded
Nominal Size: 4 Inch, DN100, 100mm
Nominal Class: Class 150 LB, PN20
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Body Material: ASTM A105N, ASTM A350 LF2, F304, F316, ASTM A182 F51, F53, F55, Inconel 625
Trim Material: ASTM A182 F6A, ASTM A182 F304, ASTM A182 F316, F51, F53, F55, A105+ENP, LF2+ENP
Test and Inspection: API 598, API 6D
Bore Type: Full Bore or Reduced Bore
Operation: Lever
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 - Class 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.
 

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Founded in 2013, Bosseal Valve is a professional valve manufacturing company in Suzhou, China. We mainly supply Industrial Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug VaIves, and Strainers designed and manufactured according to API, ASME, ISO, DIN, BS, EN standards.
 
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