China Industrial Stainless Steel IBC DN80 Welded Ball Valve for Liquid Storage Tanks - China Suppliers & Factory Manufacturers, Suppliers
Product Description
Product Parameters
This is a full-port, two-way welded ball valve specifically designed for permanent installation on DN80 (3-inch) IBC container outlets. It provides a straight-through flow path for minimal pressure loss and is operated by a quarter-turn mechanism. The standard pressure rating is PN16/ANSI 150, suitable for working pressures up to 16 bar. It is designed for a wide temperature range from -30°C to +200°C, depending on the seat material. The valve is equipped with a standard ISO 5211 mounting pad for easy attachment of manual levers or automated actuators.
Production Raw Materials
The valve body, ball, and stem are precision-machined from high-grade 316 or 316L stainless steel forgings/bar stock, ensuring superior mechanical strength and exceptional corrosion resistance, particularly against chlorides and acids. The critical sealing seats are available in advanced polymers such as reinforced PTFE (RPTFE), PEEK, or metal, selected for their chemical compatibility, low friction, and durability under high-cycle operation. All wetted materials comply with FDA, EU 1935/2004, and other relevant hygienic standards.
Production Process
Manufacturing begins with high-precision CNC machining of all metallic components to achieve exact tolerances and a smooth, crevice-free surface finish. The ball is polished to a mirror finish (Ra <0.4 µm) for optimal seal performance. The welding sockets are beveled and aligned with extreme precision. The body assembly is then joined using automated Orbital TIG welding in a controlled argon atmosphere, ensuring a consistent, high-purity, and structurally sound weld. Post-weld, the assembly undergoes meticulous cleaning, electro-polishing, and passivation to restore corrosion resistance before final assembly with pre-tested seals.
Usage Scenarios
This welded ball valve is designed for applications requiring zero leakage, high flow capacity, and a permanent, maintenance-free connection. It is essential in industries such as:
Chemical & Petrochemical: For handling corrosive solvents, acids, monomers, and high-purity chemicals under pressure.
Pharmaceutical & Biotechnology: In closed, sanitary systems for transferring buffers, media, process intermediates, and water-for-injection (WFI).
Food, Beverage, & Dairy: For hygienic processing of high-viscosity products, syrups, concentrates, and sensitive ingredients.
High-Purity Semiconductor & Specialty Gas: Where absolute containment and ultra-clean surfaces are critical to process integrity.
Quality Inspection
Each valve is subjected to a stringent, multi-stage quality assurance protocol. This includes dimensional accuracy verification, visual inspection, and dye penetrant testing (DPT) of all critical welds to detect any surface imperfections. A 100% pressure test is mandatory, comprising a shell strength test and a high-sensitivity seat leakage test per API 608/ISO 17292 standards. A final functional test ensures smooth operation with precise 90-degree stops. Material certifications are verified for full traceability.
Packaging & Shipping
To protect the precision-machined surfaces and welding ends, each valve is thoroughly cleaned, dried, and all ports are sealed with protective plastic caps. It is then wrapped in VCI (Vapor Corrosion Inhibitor) anti-rust paper and sealed in an individual polyethylene bag. Valves are securely packed in custom, foam-lined corrugated cartons to prevent any movement or impact during transit. Packaging is clearly marked with part numbers, material grade, pressure rating, and a unique batch traceability code.
After-Sales Service
We provide full material traceability documentation and pressure test certificates with each valve. Our comprehensive after-sales support includes technical guidance on proper welding procedures and system integration. While designed as a permanent connection, we offer maintenance seal kits for seat and stem seal replacement to extend service life. A standard warranty covers defects in materials and workmanship, backed by responsive customer support for technical troubleshooting and operational inquiries.
