Fully Welded Trunnion Ball Valves, API 6D, BW Ends, Custom

Product Name: Fully Welded Trunnion Mounted Ball Valve, Extended Body
Design Standard: API 6D
Material: Customized
Size: Customized
Pressure: Customized
End Connection: Butt Weld
Operation: Gearbox
Temperature Range: -46°C to 120°C
Medium: Water, Gas, Oil, etc

The Fully Welded Ball Valve, also known as the Welded Body Ball Valve, is designed with a fully welded body. This type of valve is primarily used as a stop/shutoff valve in water and gas-supply systems, as well as in heat-power engineering, housing and communal services, chemical and oil-refining plants, and pulp-and-paper production facilities. The forging materials undergo ultrasonic examination in accordance with ASME nondestructive flaw detection requirements. The welding slope on the connection face is subjected to liquid penetration examination. A certain corrosion allowance is left for the body wall thickness to ensure durability. The carbon steel stem, fixed shaft, ball, seat, and seat ring are chemically nickel-plated according to ASTM B733 and B656 standards. Additionally, various corrosion-resistant materials are available for user selection. Based on customer requirements, valve materials can be selected according to NACE MR 0175/ISO 15156 or NACE MR 0103, with strict quality control and inspection during manufacturing to fully meet the standards and service conditions in sulfurization 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, BS5351, 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
» Three-Piece Body or Two-Piece Body
» Metal-to-Metal Sealing or Soft Sealing
» Full Bore or Reduced Bore
» Flange End or Welding End
» Double Block and Bleed
» Locking Device
» Single Piston Effect, Double Piston Effect
» Automatic Internal Relief of Body Pressure
» Emergency Sealant Injection System
» Fire Safe Design, Anti-static Device
» Anti-Blowout Stem Design
» Body Vent Device
» Suitable for Underground Use
» Optional Extended Bonnet
» Optional Extended Stem
» Ensure No Potential Body Joint Leak for Environmental Concern
» Forged Steel Body Assures Uniform Fine Grain Structure and Toughness Free from Inevitable Cast Valves Defects Such as Porosity and Gas Holes