Fully Welded Trunnion Ball Valve, API 6D, ASTM A105, 40 Inch

Product Name: Fully Welded Trunnion Mounted Ball Valve
Design Standard: API 6D
Body Material: ASTM A105
Size: 40 Inch, DN1000
Pressure: PN25, Class 300 LB
End Connection: Butt Welded

The Fully Welded Ball Valve, also known as the Welded Body Ball Valve, is designed for use as a stop/shutoff valve in various industries, including water and gas supply systems, heat-power engineering, housing and communal services, and chemical and oil-refining plants, as well as pulp-and-paper production facilities. The fully welded body enhances the valve’s integrity and durability in demanding applications.

The materials used in the valve's construction undergo rigorous quality control. The forging materials are subjected to ultrasonic examination in line with ASME nondestructive flaw detection requirements, and the welding slopes on the connection face undergo liquid penetration examination. The body wall thickness includes a corrosion allowance, ensuring the valve can withstand challenging environments. The carbon steel stem, fixed shaft, ball, seat, and seat ring are chemically nickel-plated according to ASTM B733 and B656 standards, and corrosion-resistant materials are available for user selection. Valve materials can also be tailored to meet NACE MR 0175/ISO 15156 or NACE MR 0103 standards for sulfurization environments, ensuring full compliance with industry specifications.

Technical Specifications

» Size Range: NPS 1/2-48 Inch (DN15-DN1200)
» Temperature Range: -46°C to 120°C
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Medium: Water, Gas, Oil, etc.
» Materials: Forged Carbon Steel, Forged Stainless 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

Product Features

» Fully Welded Body: Enhances durability and leak-proof performance.
» Three-Piece or Two-Piece Body Design: Offers flexibility based on operational needs.
» Metal-to-Metal Sealing or Soft Sealing: Provides options for various sealing needs.
» Full Bore or Reduced Bore: Available for different flow capacity requirements.
» Flanged End or Welding End: Versatile connection options.
» Double Block and Bleed: Ensures safe isolation of the valve.
» Locking Device: Prevents unauthorized valve operation.
» Single or Double Piston Effect: Available based on performance requirements.
» Automatic Internal Relief of Body Pressure: Ensures safe operation by relieving excess pressure.
» Emergency Sealant Injection System: Provides emergency sealing in case of leakage.
» Fire-Safe Design and Anti-Static Device: Meets fire safety standards and reduces static risk.
» Anti-Blowout Stem Design: Prevents stem blowouts for enhanced safety.
» Body Vent Device: Allows for safe venting of the valve body.
» Suitable for Underground Use: Designed for installation in harsh environments.
» Optional Extended Bonnet and Stem: Provides additional flexibility for different applications.
» Leak-Proof Body Joint: Ensures no potential leaks, meeting environmental protection concerns.
» Forged Steel Body: Assures uniform fine grain structure and toughness, free from cast valve defects like porosity and gas holes.