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Rail applications- Pneumatic and electric control solutions that keep rail networks moving

    Our approach

    Supporting reliable rail operations throughout the asset lifecycle

    Keeping rail services moving requires systems that can perform consistently over long service lives while meeting stringent operational, safety and environmental requirements. Whether designing new rolling stock, upgrading existing fleets or supporting long-term maintenance programs, engineers must balance vehicle availability, passenger safety, compliance and lifecycle costs. Selecting technologies designed specifically for rail environments can play an important role in achieving these objectives.

    We support customers across rail applications through engineering collaboration, application knowledge and rail-focused control technologies developed and tested to perform in demanding operating environments.

    Overview

    Air Preparation & Dryers

    Compressed air systems play an important role across numerous rolling stock functions. Effective moisture management, filtration and air quality control help support dependable performance over long service lives.

    Key Challenges

    • Removing moisture, particles and oil contamination

    • Improving compressed air quality

    • Reducing maintenance intervention

    • Supporting long-term system performance

    How we help

    Patented Adsorbent Media Tube (AMT) rail air dryers, filtration and air preparation technologies are engineered to support long-life compressed air quality management. They help protect pneumatic systems from contamination risks while supporting reliability and reduced maintenance requirements.

    Overview

    Braking Systems

    Braking systems require reliable control and monitoring components to support safe and efficient operation.

    Key Challenges

    • Maintaining braking performance over long service lives

    • Supporting operational safety requirements

    • Reducing downtime during maintenance

    • Managing performance in varying environmental conditions

    How we help

    Valves, regulators and pressure switches are designed and tested extensively for rail braking applications.

    Overview

    Internal & External Door Systems, including step systems

    Rail door and step systems play an essential role in passenger access, comfort, safety and service reliability.

    Key Challenges

    • Supporting reliable passenger access

    • Managing harsh environmental conditions

    • Delivering long operational life

    • Meeting accessibility requirements

    How we help

    Customized actuation, including curved and telescopic designs, plug-and-play step systems and control solutions designed for both interior and exterior rail door applications.

    Overview

    Modern coffee machines depend on accurate dosing, fast response and repeatable control to deliver consistent taste across every drink. Space constraints and high usage place added demands on system design.

    Key Challenges

    • Variability between servings and inconsistent extraction quality

    • Limited installation space in compact commercial machines

    • High-cycle reliability demands in self-service applications

    • Multi milk-type dispense systems require vigilant cleaning and maintenance protocols

    • Particle and heavy media causing leaks and unplanned downtime

    How we help

    We support compact, high-performance coffee system designs with fast-acting, media-separated fluid control solutions - including zero dead-volume valves for milk circuits - and engineering input to optimise consistency, reliability and ease of maintenance across the full machine lifetime.

    Overview

    Secondary Suspension System Control

    Suspension systems contribute to vehicle stability, ride quality and operational efficiency.

    Key Challenges

    • Maintaining accurate levelling performance

    • Supporting ride quality

    • Reducing maintenance requirements

    • Maximising vehicle availability

    How we help

    Levelling and suspension control valve technology developed for rail operating environments. Designed to support 8-10 years without refurbishment, this technology offers complete rail industry compliance.

    Engineering support tailored to rail applications

    Working alongside OEMs, operators and maintenance teams from design through to service

    Rail applications often involve unique operational requirements, challenging environments and long asset lifecycles. Selecting the right control technologies requires an understanding of performance objectives, maintenance strategies and compliance considerations.

    We work closely with customers to understand these requirements and support the development of practical solutions that align with project and operational goals. Our experience spans metro, intercity, high-speed, freight and permanent-way rail applications.

    Overview

    Sanding control

    Maintaining wheel-to-rail adhesion is essential for safe, efficient train operation. In wet, icy or contaminated conditions, sanding systems need to deliver the right amount of sand at the right moment to support traction, braking and reliable vehicle performance.

    Key Challenges

    • Delivering sand precisely when and where it is needed

    • Maintaining traction and braking performance in wet, icy or contaminated conditions

    • Reducing downtime, maintenance intervention and lifecycle costs

    • Optimising pneumatic performance, including air flow and filtration, across the vehicle lifecycle

    How we help

    We support sanding applications with rail-certified pneumatic control technologies designed for demanding rolling stock environments. Proportional air flow control can help manage energy use, while suitable filtration helps protect the wider sanding unit and extend system life.

    Overview

    Coupling and nose systems

    Efficient train operation depends on coupling and nose systems that work reliably every time. From automatic coupling and uncoupling to nose cone deployment, these systems must perform consistently in conditions exposed to vibration, weather and contamination.

    Key Challenges

    • Delivering dependable coupling and uncoupling performance

    • Ensuring reliable nose cone deployment and protection

    • Withstanding vibration, weather exposure and contamination

    • Reducing maintenance intervention, service disruption and long-term reliability risks

    How we help

    We provide rail-certified pneumatic actuation and control solutions for coupling and nose system applications. Designed for demanding rail environments, our technologies help support system availability, safe fleet performance and reduced maintenance requirements throughout the vehicle lifecycle.

    Overview

    Horn control

    Train horn systems play an important role in rail safety, providing clear audible warnings for trackside personnel, road users and pedestrians. Reliable pneumatic control helps ensure consistent horn operation, fast response and dependable performance in varied operating conditions.

    Key Challenges

    • Delivering reliable horn actuation across different operating environments

    • Maintaining consistent sound output and response times

    • Reducing air consumption, system complexity and maintenance demand

    • Supporting long service life while meeting rail safety and operational requirements

    How we help

    We support horn control applications with pneumatic valves, pressure control and air management technologies engineered for dependable rail operation. Our robust, rail-proven components help optimize pneumatic performance, improve reliability and reduce long-term maintenance requirements.

    Overview

    HVAC control

    Passenger comfort depends on stable cabin conditions, particularly when trains travel through tunnels and experience rapid pressure changes. HVAC pressure control systems need to respond quickly and reliably to reduce passenger discomfort while supporting vehicle integrity and operational performance.

    Key Challenges

    • Responding rapidly to tunnel-related pressure changes

    • Minimizing passenger discomfort while supporting vehicle integrity

    • Ensuring reliable vent opening and closing in demanding rail environments

    • Reducing maintenance requirements across the vehicle lifecycle

    How we help

    We supply rail-certified pneumatic control systems and actuators for pressure relief vent operation. These technologies enable fast, reliable vent control during tunnel transitions, helping improve passenger comfort, maintain operational reliability and reduce lifecycle maintenance requirements.

    Overview

    Freight control systems

    Freight operators need control systems that perform day after day across long routes, varied applications and challenging environmental conditions. Reliable pneumatic control helps maximize uptime, support safe operation and reduce the maintenance burden across extensive rail networks.

    Key Challenges

    • Maximizing fleet availability and operational reliability

    • Withstanding vibration, contamination and extreme weather conditions

    • Reducing maintenance costs, service interruptions and lifecycle risk

    • Supporting safe operation across varied freight applications while extending component service life

    How we help

    We support modern freight operations with rail-certified pneumatic control solutions, including pressure control, air management and valve technologies. Our solutions help operators improve reliability, reduce downtime and optimize total cost of ownership throughout the vehicle lifecycle.

    Rail Products

    • Rail Actuators
    • Rail Valves
    • Rail Air Preparation
    • Rail Pressure Sensors
    • Rail Fittings, Tubing & Accessories
    See our rail expertise in action.

    Learn how we support manufacturers, operators and maintenance teams across a wide range of rolling stock applications and operating environments.

    Helping rail operators and OEMs achieve their operational goals

    Rail systems operate under constant pressure to improve availability, maintain safe operation and manage lifecycle costs. Our rail solutions are designed to address some of the most common challenges faced by operators, manufacturers and maintenance teams throughout the asset lifecycle.
    Improve rolling stock availability
    Support consistent system performance with technologies designed for long-term operation in rail environments.
    Reduce maintenance requirements
    Solutions engineered for extended service intervals can help support maintenance planning and reduce operational disruption.
    Support passenger safety
    Technologies used in braking, door, suspension and pantograph systems help support safe operation across the network.
    Simplify integration and compliance
    Application expertise and configurable solutions help streamline specification, installation and lifecycle management.

    Rail engineering support

    Speak to a technical rail specialist about your rolling stock project, fleet upgrade or in-service application challenge.

    Whether you have a detailed specification or an early-stage question, our rail engineers can help you scope the requirement.

    Solutions designed for challenging rail environments
    Rail systems operate in a wide variety of environmental and operational conditions. Technologies used throughout the network must support dependable performance across the asset lifecycle. Our technologies are developed and tested for the demands of rail applications, including compliance with recognised rail standards such as EN 61373 Category 1 Class A and B vibration resistance and EN 45545-2 fire and smoke requirements.
    Supporting rail projects worldwide
    For almost five decades, we have worked with rail manufacturers, operators and maintenance teams to address application challenges across a wide range of rolling stock systems.

    Years of global rail expertise

    Countries with local sales & service

    Products designed for -40°C to +80°C

    Custom rail manifolds for simplified pneumatic control
    Rolling stock pneumatic systems often combine multiple valves, regulators and connection points within limited installation space. Integrating these functions into application-specific manifold assemblies can reduce system complexity, minimize potential leak paths and support more efficient maintenance across braking, door, suspension and pantograph systems.

    Discover how our manifold solutions can streamline your rail systems

    The whitepaper explores the engineering principles and real-world applications of manifold systems, showcasing how they enhance reliability, reduce costs, and optimize rail performance.

    Lifecycle support

    Support that helps keep fleets moving

    Keeping rail fleets available does not stop at initial specification. Rolling stock can remain in service for decades, and maintaining performance across that period depends on reliable access to parts, practical engineering input and clear options as assets age.

    • REDUCE RISK.

      Approved spare parts.

      Genuine replacement parts approved for rail use, supplied with the documentation maintenance teams need to specify and fit with confidence. Using approved parts helps protect system performance and avoid unplanned removals

    • FIRST-TIME FIX.

      Technical support.

      Direct access to engineers who work in rail every day. Practical input on selection, cross-referencing and diagnostics helps identify the right solution first time and reduces time spent investigating in the depot.

    • EXTEND ASSET LIFE.

      Retrofit and upgrades.

      Options for refurbishment and modernization programs, from direct replacements through to improved-performance alternatives. Upgrading in-service systems can raise reliability and reduce maintenance demand without a full redesign

    • PLAN AHEAD.

      Obsolescence management.

      Support for ageing fleets where original components are approaching end of life, including form-fit-function alternatives and long-term availability planning that helps avoid unplanned redesign.

    • LOCAL DELIVERY.

      Global service network.

      Local sales and service support in 50 countries, backed by rail engineering and manufacturing capability. Parts, technical advice and documentation are available close to the project or the depot.

    Case Studies & Applications

    Cutting pressure drop by 20%: a new three-stage filtration system for high-power locomotives

    Today and tomorrow: Four ways to put OEMs at the centre of the rail revolution

    A New Rail Dryer System and Expert Support for European train operator (1)

    The ATM rail dryer: keeping compressed air on track

    Learn more about our Rail solutions

    Resources

    • Rail Product CAD Models
    • Rail Product Overview Brochure (PDF)
    • AMT Dryer Brochure (PDF)
    • Custom Rail Door Systems (PDF)
    • Rail Suspension Control (PDF)
    • Rail Freight Overview Brochure (PDF)
    • 21D Pressure Switch Brochure (PDF)
    • Locomotive Air Filtration Brochure
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    Norgren Ltd, Wall Island, Birmingham Road, Lichfield, WS14 0QP, United Kingdom

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            Norgren Ltd, Wall Island, Birmingham Road, Lichfield, WS14 0QP, United Kingdom
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