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    Flow Regulators

    Precision Flow Regulators for Stable System Performance

    Boiswood’s range of flow regulators is engineered for accurate and consistent gas flow control. Designed for use in laboratory, industrial, and OEM environments, these regulators maintain a fixed flow rate regardless of pressure variations — ensuring system stability and performance.

    What Is a Flow Regulator?

    A flow regulator maintains a constant flow rate of gas, independent of pressure changes. Unlike pressure regulators, which control pressure output, flow regulators stabilise the volume of gas — making them essential for sensor calibration, controlled dispensing and precision instrumentation.
     
     

    Key Features

    • Fixed gas flow output across varying pressures
    • Compact and modular design for easy integration
    • High accuracy for sensitive applications
    • Corrosion-resistant materials for aggressive gases
    • Low internal volume to reduce contamination risk
    • Reliable shut-off mechanisms for enhanced safety

     

    Integrated Solutions with Cylinder Connectors

    To streamline installation and reduce system complexity, Boiswood offers flow regulators pre-fitted to our cylinder connectors range. This integrated solution is ideal for customers seeking:

    • Plug-and-play gas control systems
    • Reduced assembly time and cost
    • Leak-free connections with matched components
    • Enhanced safety and reliability in pressurised systems

    Explore our full range of cylinder connectors to find the right match for your application.
     
     

    Typical Applications

    Boiswood’s flow regulators are trusted across a wide range of industries and technical environments. Below are some of the most common use cases:

    Oil & Gas

    Used in upstream and downstream operations for precise gas flow control, especially in sampling systems, instrumentation panels and pressure testing setups.

    Laboratory & Research

    Ideal for gas control systems in analytical labs, chemical testing and environmental monitoring. Ensures consistent flow for sensitive instruments and calibration routines.

    OEM Instrumentation

    Integrated into custom-built equipment for medical, analytical and industrial use. Flow regulators help OEMs maintain performance standards and reduce system variability.

    Environmental Monitoring

    Used in air quality stations, gas detection systems and portable monitoring devices where stable flow is critical for accurate readings.

    Sensor Calibration & Testing

    Supports precise gas delivery to sensors during calibration and testing. Ensures repeatable results and protects sensitive components from pressure spikes.

    Analytical & Medical Devices

    Used in diagnostic equipment, gas chromatography and controlled dispensing systems. Flow regulators help maintain accuracy and safety in regulated environments.
     
     

    Need Pressure Control Too? Explore Our Pressure Regulators

    In addition to our precision flow regulators, Boiswood offers a comprehensive range of pressure regulators designed for accurate control of gas and liquid pressure across demanding applications. Whether you’re managing high-pressure systems or sensitive instrumentation, our regulators deliver stable output, durable performance and easy integration.

    We stock a wide selection of pressure regulators from trusted manufacturers, including the GO Regulator range — known for its compact design, high-pressure capabilities and excellent media compatibility.

    • Built from stock for fast turnaround
    • Wide pressure ranges available (low to high pressure)
    • Compact and corrosion-resistant designs
    • Ideal for laboratory, industrial and OEM use
    • Expert support to match regulators to your system requirements

     
     

    Speak to Our Experts

    At Boiswood, we don’t just supply components — we help you build complete, reliable systems. Our team of industry specialists is here to guide you through product selection, system integration, and technical support.
     
    Whether you’re designing a new setup or upgrading existing equipment, we’ll help you find the right flow and pressure control solutions tailored to your application.
     

     

    FAQs

    What is the difference between a flow regulator and a pressure regulator?

     

    A flow regulator maintains a constant gas flow rate regardless of pressure changes, while a pressure regulator controls the output pressure of a system. Flow regulators are ideal for applications where volume consistency is critical.

    Can flow regulators be used with liquids?

     

    Flow regulators are typically designed specifically for calibration gas applications.

    How do I choose the right flow rate for my application?

     

    The correct flow rate depends on your system’s requirements, gas type and operating conditions. Boiswood’s technical team can help you specify the right regulator based on your application.

    Are flow regulators adjustable?

     

    Most flow regulators are fixed-flow devices, meaning they are calibrated to deliver a specific flow rate. Adjustable models do exist but are less common and typically used in specialised setups.

    Can flow regulators be supplied pre-fitted to cylinder connectors?

     

    Yes, Boiswood offers flow regulators pre-fitted to our cylinder connector range for plug-and-play installation. This reduces setup time and ensures leak-free performance.

    Do flow regulators require maintenance?

     

    Flow regulators are generally low-maintenance, but periodic inspection is recommended to ensure performance, especially in systems handling aggressive gases or operating continuously.

    Why choose Boiswood?

    For your ROTAREX S70 CALIBRATION GAS FLOW REGULATOR

    World-class quality products

    Quality Products & Service Levels

    World-class quality products backed by unrivalled service levels. We only partner with the best manufacturers in industry. You can trust in our 35+ years of experience.

    Competitively priced products

    Competitive Pricing Structures

    Competitively priced products that we strive to keep consistent. We always ensure special pricing structures are considered.

    Attractive lead times

    Excellent Delivery Schedules

    Attractive lead times that are monitored and managed, ensuring customers receive on-time deliveries. We can also ship our products internationally.

    unmatched response times

    Ultra-Fast Response Times

    Tired of chasing for answers? We pride ourselves on our unmatched response times. You can rely on us to provide extremely quick answers to technical and commercial queries.

    On-going support

    Free Technical Support

    On-going support for our customers to meet any evolving technical requirements. We can help size and specify solutions for even the most bespoke applications.

    right solution for your application

    OEM & Custom Configurations

    We sit alongside design teams to specify the right solution for your application, no matter how demanding. Whether it’s out-of-the-box or a custom design, we are up for the challenge.

    ever-growing stock profile

    Tailored Stocking Profiles

    Need your products tomorrow? We’ve got you covered with our ever-growing stock profile and product portfolio. We can hold stock for you based on your consumption rates.

    in-house servicing, testing and assembly

    Servicing & Assembly Capabilities

    Official and manufacturer certified in-house servicing, testing and assembly for our core products, including custom panels and subassemblies.

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