Fully Welded Trunnion Ball Valves, CS, SS, 2-48 Inches, BW

Product Name: Fully Welded Trunnion Ball Valves, Extended Body
Body Material: Forged Carbon Steel, Stainless Steel
Size: 2-48 Inch (DN50-DN1200)
Pressure: Class 150-2500 LB (PN10-PN420)
End Connection: BW
Operation: Gear
Temperature Range: -46°C to 120°C
Medium: Water, Gas, Oil, etc

Fully Welded Ball Valves, also known as Welded Body Ball Valves, feature a fully welded body construction. These valves are designed for use as stop/shutoff valves in water and gas supply systems, heat-power engineering applications, municipal and utility services, and process lines in chemical and oil-refining plants, as well as pulp-and-paper production facilities. All forging materials are subjected to ultrasonic examination in accordance with ASME nondestructive flaw-detection requirements. The welding bevel on the connection face undergoes liquid penetrant testing, and a specified corrosion allowance is incorporated into the body wall thickness. The carbon-steel stem, fixed shaft, ball, seat, and seat ring are treated with chemical nickel plating in accordance with ASTM B733 and ASTM B656. Additionally, a range of corrosion-resistant materials is available for customer selection. Depending on service requirements, valve materials can be specified to comply with NACE MR0175/ISO 15156 or NACE MR0103. Strict quality control and inspection are applied throughout manufacturing to ensure full compliance with these standards and reliable performance in sour-service 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
» Two-Piece or Three-Piece Body Design
» Metal-to-Metal or Soft Sealing
» Full Bore or Reduced Bore
» Flanged or Welded Ends
» Double Block and Bleed (DBB)
» Locking Device
» Single or Double Piston Effect
» Automatic Internal Body Pressure Relief
» Emergency Sealant Injection System
» Fire-Safe Design with Anti-Static Device
» Blowout-Proof Stem Design
» Body Vent Device
» Suitable for Underground Installation
» Optional Extended Bonnet
» Optional Extended Stem
» Eliminates Potential Body Joint Leaks for Environmental Safety
» Forged Steel Body Ensures Uniform Fine Grain Structure and Toughness
» Free from Typical Casting Defects Such as Porosity or Gas Holes