Material Gates, Seal Valves & Hydraulic Cylinders
Blast Furnace Top charging systems require reliable, positive gas sealing and precise material flow controls to operate efficiently under hot, pressurized, and dust-laden conditions. Excellors designs and manufactures complete high-end mechanical components for blast furnace seal valve and material gate assemblies.
Our manufacturing range includes Upper Material Gates (UMG), Upper Seal Valves (USV), Lower Material Gates (LMG), and Lower Seal Valves (LSV). These assemblies feature water-cooled seats, heat-resistant sealing rings, and heavy steel fabrication to prevent gas blowback and secure seal integrity.
We also supply high-performance Screen Exciters and customized heavy-duty Hydraulic Cylinders, engineered to withstand the extreme thermal stresses and vibrations found in hot metallurgical workshops.
Key Technical Specifications
- Upper Material Gate (UMG): Controls raw material feeding rate into the holding hopper.
- Upper Seal Valve (USV): Isolates the hopper from ambient atmosphere before pressurization.
- Lower Seal Valve (LSV): Maintains a positive pressure barrier between hopper and blast furnace throat.
- Hydraulic Cylinders: High-temperature sealing packs, heavy-wall steel cylinders, custom stroke lengths.
- Screen Exciters: Sturdy mechanical exciters designed to drive heavy sorting/screening machinery.
Services & Refurbishment
Field Erection & Commissioning: We provide full onsite installation support, hydraulic system integration, and calibration services for seal valves and gate linkages.
Refurbishment: We offer complete refurbishing services, replacing worn gate plates, valve seat rings, bushings, and seal kits to restore original performance.