Leave Your Message
High-integrity, fully welded solutions engineered for abrasive slurries, mineral acids, and high-pressure mining pipelines.
The mining and mineral processing industry operates under some of the most demanding conditions imaginable — abrasive slurries, corrosive mineral acids, high differential pressures, extreme temperatures, and continuous 24/7 operational cycles. Conventional bolted-body ball valves, while adequate for standard applications, frequently fail in these environments due to body joint leakage, gasket degradation, and structural fatigue caused by vibration and pressure cycling.
Fully welded ball valves eliminate the bolted body joint entirely. By welding the valve body into a single monolithic structure, these valves achieve superior structural integrity, zero external leakage at the body joint, and dramatically extended service life — even when buried underground or submerged in process slurry environments. This makes them the preferred choice for critical flow control points in mining operations worldwide.
From copper and gold ore processing to iron ore beneficiation, coal washing plants, phosphate slurry pipelines, and lithium brine extraction, fully welded ball valves are being specified at an accelerating rate as mining operators prioritize operational reliability, environmental compliance, and total cost of ownership over initial procurement cost.
The fully welded one-piece body structure eliminates all external leakage paths at body joints, meeting the strictest environmental regulations for hazardous mineral processing fluids and slurries.
Hardened metal seats and specially coated ball surfaces resist the continuous abrasive wear caused by mineral slurries, ore particles, and process chemicals — maintaining bubble-tight shut-off throughout the valve's lifecycle.
With no external body bolts or gaskets to corrode or loosen, fully welded ball valves are ideal for buried pipeline installations in mine drainage systems, tailings pipelines, and underground water management networks.
From cryogenic LNG applications in mineral cooling processes to high-temperature hydrometallurgical leaching circuits, fully welded valves maintain structural integrity and sealing performance across extreme temperature ranges.
The robust welded construction requires far fewer maintenance interventions than conventional valves, reducing unplanned downtime in continuous mining operations where every hour of lost production carries significant cost.
Compatible with pneumatic, electric, and hydraulic actuators for remote operation and integration with digital mine management systems — supporting the industry's transition to automated and autonomous mining operations.
The global energy transition is driving unprecedented demand for lithium, cobalt, nickel, copper, and rare earth elements. New mine projects across Africa, South America, and Australia are specifying fully welded ball valves as standard for all critical pipeline isolation points, driving strong market growth through 2030 and beyond.
As ore grades decline globally, mineral processors are investing heavily in hydrometallurgical techniques including heap leaching, solvent extraction, and electrowinning. These processes involve highly corrosive acids and high-temperature solutions that demand the superior chemical resistance and leak-free performance of fully welded valve technology.
Stricter environmental regulations worldwide are forcing mining companies to invest in sophisticated tailings management systems and water recycling infrastructure. Fully welded ball valves are the valve of choice for these high-abrasion, high-solids slurry pipeline systems where zero leakage is both an operational and regulatory requirement.
The rapid adoption of autonomous haulage, remote drilling, and digital twin technologies in modern mines is accelerating the specification of smart, actuated valves capable of integration with SCADA and distributed control systems. Fully welded ball valves with intelligent electric actuators are central to this digital transformation of mine process control.
Mining operators are increasingly evaluating valve procurement on total cost of ownership rather than initial purchase price. The longer service life, reduced maintenance requirements, and elimination of fugitive emissions associated with fully welded valves deliver compelling TCO advantages over conventional bolted-body alternatives, particularly in remote or underground installations.
Ongoing development of tungsten carbide coatings, Stellite-faced seats, duplex stainless steel bodies, and high-chrome iron trim options is expanding the application envelope of fully welded ball valves into increasingly aggressive mining process streams that were previously considered beyond the capability of standard valve technology.
Fully welded ball valves serve critical functions across every stage of the mining value chain — from raw ore extraction to refined metal production.
Slurry Transport Pipelines: Long-distance slurry pipelines transporting ore concentrates from mine sites to processing plants or ports represent one of the most demanding valve applications in the industry. Fully welded trunnion-mounted ball valves with hardened metal seats and abrasion-resistant body linings provide the structural integrity and sealing reliability required for continuous slurry service at elevated pressures, often exceeding 100 bar in high-head pipeline systems.
Heap Leach Pad Distribution Systems: In copper, gold, and uranium heap leaching operations, acid distribution networks require valves capable of handling concentrated sulfuric acid, cyanide solutions, and other aggressive lixiviants at varying flow rates and pressures. Fully welded ball valves in duplex stainless steel or with PTFE-lined interiors provide the chemical resistance and bubble-tight shut-off required for precise leach solution distribution and collection.
Flotation Circuit Isolation: Flotation cells and associated pipework in copper, zinc, lead, and molybdenum concentrators require reliable isolation valves capable of handling fine particle slurries with high solids content. Fully welded ball valves with cavity-free designs prevent solids buildup in the valve body, maintaining reliable operation throughout extended production campaigns.
Dewatering & Mine Water Management: Underground mine dewatering systems must operate reliably in wet, corrosive environments with minimal maintenance access. Fully welded ball valves installed in buried or submerged configurations provide years of maintenance-free operation in these critical safety-related systems, preventing dangerous water ingress into working areas.
High-Pressure Grinding (HPGR) & Mill Feed Systems: Modern high-pressure grinding circuits operate at elevated pressures and require precise flow control of dense ore slurries. Fully welded ball valves with metal-to-metal seating and reinforced body construction withstand the pressure surges and vibration inherent in these grinding circuit applications.
Lithium Brine Extraction: The rapidly expanding lithium brine extraction industry in South America's lithium triangle presents unique valve challenges — highly saline, corrosive brine solutions at elevated temperatures in remote, environmentally sensitive locations. Fully welded ball valves in super duplex stainless steel or titanium alloys provide the corrosion resistance and environmental sealing performance required for these critical applications.
With over 30 years of manufacturing experience, SLVCN is a professional designer and manufacturer of high-performance forged steel ball valves for critical industrial applications. We specialize in extreme working conditions including high pressure, high temperature, and cryogenic environments, providing safe and reliable flow control solutions for global industrial projects where operational reliability is non-negotiable.
Today, SLVCN serves customers in more than 100 countries and regions, supplying valves to EPC contractors, engineering companies, and end users across Europe, the Middle East, Southeast Asia, and the Americas. Backed by strong engineering expertise, advanced manufacturing, and rigorous quality control, SLVCN is committed to delivering safe, durable, and truly engineered valve solutions for the world's most demanding industrial projects — including the full spectrum of mining and mineral processing applications.
Contact UsOur core product range covers forged trunnion-mounted and floating ball valves, top-entry and side-entry ball valves, fully welded ball valves, metal seated ball valves, cryogenic ball valves, high-pressure ball valves up to Class 2500 (PN420) and customized higher pressure ratings, as well as high-temperature service valves. Compared with conventional cast valves, SLVCN forged valves feature higher material density, superior mechanical strength, improved resistance to pressure fluctuations and thermal shock, and significantly longer service life under severe service conditions.
Designed for High Pressure, High Temperature, and Cryogenic Applications, SLVCN valves are widely used in long-distance oil & gas transmission pipelines, LNG storage and regasification terminals, offshore platforms and deepwater projects, power plants, refineries, compressor stations, high-pressure chemical processing units, and mining & mineral processing facilities worldwide. Whether handling flammable media, corrosive fluids, sour service media (H₂S), ultra-low temperatures, or extreme differential pressures, our valves ensure stable operation, bubble-tight shut-off, and maximum system safety in accordance with international sealing and performance standards.
Safety and reliability are embedded in every design. Our forged ball valves are equipped with Double Block and Bleed (DBB) structures, anti-blowout stems, fire-safe designs in accordance with API 607 / API 6FA, anti-static devices, emergency sealing systems, and pressure-balanced seating structures suitable for high differential pressure operation.
Valves can be designed with SPE or DPE seat configurations based on application requirements. For sour service environments, materials and sealing systems comply with NACE MR0175 / ISO 15156 requirements. In mining applications specifically, our valves can be configured with extended bonnets for insulation, cavity relief valves for thermal expansion management, and special stem sealing systems for abrasive media service.
The fully welded body construction also provides inherent fire safety advantages — with no external body gaskets to burn through in a fire event, the valve maintains its pressure containment integrity even under fire exposure conditions, a critical safety requirement for mining operations handling flammable or explosive process media.
To ensure consistent quality, each valve undergoes a complete series of inspections and performance tests in accordance with API 6D, API 598, and ISO 5208, including shell test, seat leakage test (Rate A / zero visible leakage), fire-safe test, cryogenic test, operational torque test, dimensional inspection, and PMI material verification. SLVCN operates dedicated cryogenic testing facilities to validate valve performance at ultra-low temperatures down to −196°C.
SLVCN is certified to ISO 9001, CE, and API standards, and our products comply with API 6D, ASME B16.34, DIN, ANSI, and JIS specifications. We provide extensive customization capabilities covering sizes from 1/2" to 36", full bore or reduced bore, special materials including A105, LF2, F11, F22, F51, Inconel, various soft and metal seat designs, and intelligent actuation with pneumatic, electric, and gear operators.
Today, SLVCN serves customers in more than 100 countries and regions, supplying valves to EPC contractors, engineering companies, and end users across Europe, the Middle East, Southeast Asia, and the Americas. Backed by strong engineering expertise, advanced manufacturing, and rigorous quality control, SLVCN is committed to delivering safe, durable, and truly engineered valve solutions for the world's most demanding industrial projects — including mining operations on every continent.
Explore our extended range of high-performance ball valves designed for the full spectrum of mining pipeline and process control applications.
+86 18913944686
