Buried Fully Welded Ball Valve, API 6D, A105, 8 Inch, CL300

Product Name: Buried Type Fully Welded Ball Valve
Design Standard: API 6D
Body Material: ASTM A105
Size: DN200, 8 Inch
Pressure: PN25, Class 300 LB
End Connection: BW

Fully Welded Ball Valve, also known as Welded Body Ball Valve, features a fully welded body. These valves are designed to serve as stop/shutoff valves in water and gas-supply systems, heat-power engineering, housing, communal services, and process lines in chemical, oil-refining, and pulp-and-paper production facilities. The forging materials undergo ultrasonic examination per ASME nondestructive flaw detection requirements. The welding slope on the connection face is liquid penetrant tested. The carbon steel components like the stem, fixed shaft, ball, seat, and seat ring are chemically nickel-plated per ASTM B733 and B656. Corrosion-resistant materials are available for selection, and valves can be customized per NACE MR 0175/ISO 15156 or NACE MR 0103 standards, ensuring strict quality control and suitability for sulfurization environments.

Technical Specifications

» Size Range: NPS 1/2-48 Inch (DN15-DN1200)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Materials: Carbon Steel, Stainless Steel, Duplex Steel
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other special materials
» 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
» Temperature Range: -46°C to 120°C
» Medium: Water, Gas, Oil, etc.

Product Features

» Fully Welded Body
» Three Pieces Body or Two Pieces 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
» Free from Inevitable Cast Valves Defects such as Porosity, Gas Hole