ASTM A350 LF2 Ball Valves, DN300, PN160, Fully Welded, BW

Product Name: ASTM A350 LF2 Ball Valve
Type: Fully Welded Trunnion Ball Valve
Body Material: ASTM A350 LF2
Size: DN300, 300 mm, 12 Inch
Pressure: PN160, Class 900 LB
End Connection: BW
Operation: Gear Operated
Temperature Range: -46°C to 120°C

The Fully Welded Ball Valve, also known as a Welded Body Ball Valve, features a fully welded body for enhanced strength and durability. These valves are designed for stop/shutoff service in water and gas supply systems, heat-power engineering, municipal utilities, and process pipelines in chemical, oil-refining, pulp, and paper industries. All forging materials undergo ultrasonic testing in accordance with ASME nondestructive examination requirements. The welding bevel on the connection face is inspected using liquid penetrant examination. A specified corrosion allowance is incorporated into the body wall thickness to ensure long-term reliability. The carbon-steel stem, fixed shaft, ball, seat, and seat ring are chemically nickel-plated in accordance with ASTM B733 and B656. Additional corrosion-resistant materials are available according to user needs. To meet specific service environments, valve materials can be selected in compliance with NACE MR0175/ISO 15156 or NACE MR0103. Strict quality control and inspection procedures are implemented throughout manufacturing to fully satisfy the requirements of these standards and ensure dependable performance in sour-gas environments.

Technical Specification

» Type: Full Weld Ball Valve
» Size Ranges: NPS 1/2-48 Inch (DN15-DN1200)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Materials: Cast Carbon Steel, Stainless Steel, Duplex, or Other Specials
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other specials
» Seat Materials: RPTFE, DEVLON, PEEK
» Ends Connections: Flanged RF, RTJ, Welded
» Operation: Handle, Worm Gear, Electric, Pneumatic
» Design and Manufacture: API 6D, BS 5351, ASME B16.34
» Face to Face (End to End): ASME B16.10
» Flanged Connection: ASME B16.5, ASME B16.47
» Test and Inspection: API 598, API 6D
» Butt Welded End: ASME B16.25
» Fire Safety: API 607, API 6A

Product Features

» Fully welded body construction
» Available in three-piece or two-piece body designs
» Metal-to-metal or soft-sealing options
» Full-bore or reduced-bore configurations
» Flanged ends or welded ends
» Double block and bleed capability
» Locking device for secure operation
» Single-piston or double-piston effect
» Automatic internal body-pressure relief
» Emergency sealant injection system
» Fire-safe design and anti-static device
» Anti-blowout stem design
» Body vent device
» Suitable for underground installation
» Optional extended bonnet
» Optional extended stem
» Eliminates potential body-joint leakage for improved environmental protection
» Forged-steel body provides a uniform fine-grain structure and superior toughness
» Avoids inherent casting defects such as porosity and gas holes