RALX Platform
Industrial-grade rotary valves valves achieving 99% sealing efficiency with our Graphite Sealing System. Standardized designs with fixed BOMs for cement, mining, and bulk material handling.
Spare Parts & Aftermarket
Genuine OEM spare parts for all Oswar Rotocorp products
Rotors · Liners · Bearings · Seals · Gearboxes · Drive Components
Browse RALX Catalog by Series
Blow-Through Controlled Flow Rotary Valve
Blow-Through duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
Hygienic Controlled Flow Rotary Valve
Hygienic duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
Abrasive Controlled Flow Rotary Valve
Abrasive duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
High Temperature Controlled Flow Rotary Valve
High Temperature duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
Heavy Duty Controlled Flow Rotary Valve
Heavy Duty duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
Standard Controlled Flow Rotary Valve
Standard duty rotary valves valve designed for controlled flow applications. Features robust construction, low leakage, and reliable performance.
Blow-Through Feeder Systems Rotary Valve
Blow-Through duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
Hygienic Feeder Systems Rotary Valve
Hygienic duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
Abrasive Feeder Systems Rotary Valve
Abrasive duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
High Temperature Feeder Systems Rotary Valve
High Temperature duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
Heavy Duty Feeder Systems Rotary Valve
Heavy Duty duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
Standard Feeder Systems Rotary Valve
Standard duty rotary valves valve designed for feeder systems applications. Features robust construction, low leakage, and reliable performance.
Blow-Through Bulk Material Handling Rotary Valve
Blow-Through duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
Hygienic Bulk Material Handling Rotary Valve
Hygienic duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
Abrasive Bulk Material Handling Rotary Valve
Abrasive duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
High Temperature Bulk Material Handling Rotary Valve
High Temperature duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
Heavy Duty Bulk Material Handling Rotary Valve
Heavy Duty duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
Standard Bulk Material Handling Rotary Valve
Standard duty rotary valves valve designed for bulk material handling applications. Features robust construction, low leakage, and reliable performance.
Blow-Through Powder Handling Rotary Valve
Blow-Through duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
Hygienic Powder Handling Rotary Valve
Hygienic duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
Abrasive Powder Handling Rotary Valve
Abrasive duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
High Temperature Powder Handling Rotary Valve
High Temperature duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
Heavy Duty Powder Handling Rotary Valve
Heavy Duty duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
Standard Powder Handling Rotary Valve
Standard duty rotary valves valve designed for powder handling applications. Features robust construction, low leakage, and reliable performance.
Rotor Assembly
Complete rotor assembly with blades for rotary valves - available for all sizes
Motorized Flap Gate
Motor-driven flap gate for precise and controlled material discharge
Pneumatic Flap Gate
Pneumatically actuated flap gate for automated material flow control
Counterweight Flap Gate
Counterweight-balanced flap gate for smooth and reliable material discharge control
Diverter Valve for Gravity Conveying
Robust diverter valve optimized for gravity-fed material flow applications
Diverter Valve for Pneumatic Conveying
High-performance diverter valve designed specifically for pneumatic conveying systems
Pin MLPB Slide Gate Valve
Pin MLPB (Multi-Layer Pin Bearing) slide gate valve for heavy-duty applications
Pneumatic Slide Gate Valve
Pneumatically actuated slide gate valve for fast and reliable operation
Motorized Slide Gate Valve
Electric motor-driven slide gate valve for automated operation and remote control
Manual Slide Gate Valve
Manually operated slide gate valve for reliable material isolation and flow control
RALX-HD 300
Heavy-duty rotary airlock valve, 300mm size, designed for cement and abrasive material handling.
RALX-HD 600
Heavy-duty rotary airlock valve, 600mm size, for high-capacity applications.
Our Complete Product Line
Engineered flow control solutions across four product families, designed for demanding industrial environments.
Rotary Valves
Precision air lock & feeding systems for pressure isolation and controlled volumetric discharge.
Available Series
Slide Gate Valves
On/off shut-off and flow control for gravity-based bulk material discharge in industrial systems.
Diverter Valves
Two-way flow switching for conveying lines, silo routing, and multi-destination material distribution.
Flap / Gravity Gates
Passive and controlled backflow prevention for dust collectors, silos, and low-pressure conveying systems.
Rotary Valves
Precision Air Lock and Feeding Systems
Oswar Rotocorp Rotary Valves are engineered to control bulk solids while maintaining pressure differential between process zones for long service life and stable process performance.
Core Functions
Powder Handling
Engineered for fine and dust-intensive materials where pressure stability and clean operation are critical.
Industries
Pharma | Food | Chemicals | Paints | Glass | Ceramics
Recommended Series
Bulk Material Handling
Built for coarse, heavy, and abrasive solids operating in high-load industrial environments.
Industries
Cement | Mining | Power | Steel | Lime
Recommended Series
Feeder Systems
Controlled and repeatable feed for process balance, dosing accuracy, and downstream stability.
Industries
Ethanol | Sugar | Fertilizer | Ceramics | Glass
Recommended Series
Controlled Flow Systems
Used where pressure integrity and air-sealing directly impact plant performance and emissions.
Industries
Cement | Power | Steel | Chemicals | Mining
Recommended Series
Series Library
RALX Series Overview
Standard Series
Reliable continuous-duty performance for moderate conditions and general industrial applications.
- Balanced rotor design
- Stable volumetric feeding
- Low-maintenance layout
Heavy Duty Series
Reinforced construction for high-load environments and dense material transfer.
- High torque capability
- Reinforced shafts
- Extended bearing protection
High Temperature Series
Designed for elevated thermal duty with stable sealing and bearing protection.
- Thermal expansion management
- Heat-resistant sealing
- Outboard protection options
Abrasive Series
Wear-focused internals for minerals and high-friction solids.
- Replaceable liners
- Hardened rotor tips
- Wear-resistant geometry
Hygienic Series
Sanitary and clean-process configuration for regulated powder applications.
- Stainless contact surfaces
- Smooth internal finish
- Cleanability-oriented design
Blow-Through Series
Built for pneumatic transfer lines requiring pressure-consistent throughput.
- Reduced air leakage
- Stable conveying support
- Pressure-friendly discharge
Flow Control Portfolio
Beyond Rotary Valves
Slide Gate Valves
Positive shut-off and isolation for silo discharge and hopper flow control with manual, motorized, pneumatic, and pin-based options.
Diverter Valves
Controlled routing of solids streams between multiple downstream paths for process flexibility.
Flap / Gravity Gates
Simple and robust gravity-based or actuated isolation in transfer chutes and gravity lines.
Spare Parts
Lifecycle-focused genuine replacement components to maintain sealing efficiency and extend equipment life.
Some portfolio categories may not yet be fully listed as catalog SKUs on the website. We have mapped this missing content here and can configure selections through engineering support.
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Our engineering team can design RALX units for your specific requirements.