Gas Interlock Systems, Kits & Panels
Gas interlock systems help ensure that gas appliances cannot be used unless mechanical ventilation is operating correctly, supporting safe working conditions and reducing risk. They play a crucial role in protecting commercial kitchens, school food technology rooms, laboratories and small catering operations.
At BES, we stock a wide selection of interlock kits, gas proving systems, control panels and accessories from trusted manufacturers, including Flamefast, Gas-Minder and Intelligas, with solutions suitable for new installations, upgrades and replacements. Have a look at our full range and get the equipment or part you need in a hurry, with fast delivery on qualifying orders.
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Helping You Find The Right Gas Interlock System Or Proving Solution
We pride ourselves on stocking a wide range of natural gas & LPG products and fittings, with our range of gas interlock systems including:
Interlock Kits
Interlock kits provide the primary gas/ventilation link. Options such as the Flamefast VentGuard Plus Interlock System, Gas-Minder 4 Interlock System Pack – ISP-3, and the Flamefast GasGuard Gas Proving & Interlock System are widely used across commercial catering, school classrooms and industrial training spaces. The Intelligas EGIP range provides all-in-one packages, including models with pre-matched gas valves from ¾" to 2", simplifying specification for new installations.
Gas Proving Kits
Gas proving systems confirm that downstream pipework holds pressure before gas is enabled. Products frequently specified in laboratories, school environments and teaching kitchens, such as the Intelligas Gas Proving Kit, Cooksafe PGCS003 Ventilation & Gas Proving System and Labsafe PGLS001 Gas Pressure Proving System are top choices in the range.
Interlock Panels
Standalone panels such as the Intelligas 100S Gas Interlock Panel and Intelligas KVM-SF Kitchen Ventilation Controller are ideal when only the control electronics need replacing or when integrating into bespoke mechanical/ventilation designs.
Safety Panels
The Intelligas Boiler Room Gas Safety System centralises safety control in plant rooms, offering local shut-off, ventilation links and status indication for multi-boiler or multi-appliance setups.
Fan Speed Controllers
Our Fan Speed Controller regulates the speed of the fan motor and can be used with most single-phase industrial extractor fans.
What Is a Gas Interlock System?
A gas interlock system links the ventilation system, usually mechanical extraction fans, to the gas supply feeding cooking appliances or laboratory equipment. The system monitors fan operation, airflow or differential pressure. If the extraction is not running, the interlock prevents the gas valve from opening, ensuring appliances cannot be used without adequate ventilation.
Many modern systems also provide gas proving, confirming pipework integrity before use, emergency shut-off functionality, visual status indicators for staff and engineers and compatibility with gas safety shut-off valves. This combination of controls helps maintain safe working conditions where gas appliances and mechanical ventilation must operate together.
Common Applications
Gas interlock and proving systems are used in a wide range of commercial and educational settings, such as small cafés and coffee shops, commercial kitchens, schools and laboratories, and boiler rooms.
Regulations & Installation
Selecting the correct system depends on ventilation type, appliance load, and safety requirements. For detailed regulatory responsibilities, installers should consult relevant UK standards, local authority requirements and building services guidance, and always refer to the manufacturer’s installation instructions. Gas interlock systems and gas proving panels must be installed, tested and commissioned by a qualified engineer.
Why Shop Gas/Vent Interlock Products At BES
Make BES your one-stop shop for all your natural gas needs! Apart from our range of gas interlock systems, we are proud to offer a comprehensive range of gas solenoid valves and accessories for interlock systems and gas solenoid valves, such as fan current sensors, CO2 detectors, knock off switches, indicator lights and fan pressure switches. Our range of gas solenoid valves includes electrically actuated solenoid valves, safety shut-off valves and emergency gas control valves. Before heading to checkout, view our range of natural gas & LPG products and fittings here.
Need Help?
If you’re unsure which system suits your installation, our technical team can help you identify suitable interlock kits, panels and accessories.
With an extensive inventory of over 15,000 products, fast dispatch, free delivery on qualifying orders, and an Excellent rating from Reviews.co.uk, shopping online with us just makes sense.
FAQs
What is a gas interlock system and how does it work?
A gas interlock system monitors extraction ventilation and prevents gas flow if fans are not running. This helps maintain safe working conditions in commercial environments.
Do I need an interlock system for a commercial kitchen?
Interlock systems are widely used in commercial catering and other ventilated gas environments. Installers should refer to UK guidance and applicable standards for specific requirements.
Which interlock kit is best for a small café?
Compact systems such as Gas-Minder or Flamefast VentGuard often meet the needs of smaller commercial kitchens with single extract fans.
What is the difference between interlocking and gas proving?
Interlocking confirms fan operation; proving checks the integrity of downstream pipework before allowing gas flow.
Can I install an interlock system myself?
No. Interlock and proving systems should only be installed and commissioned by a qualified gas engineer.
How do I troubleshoot a panel fault?
Check airflow sensors, fan current sensors, emergency stop circuits and wiring. Refer to the product manual for specific diagnostic codes.
Are Intelligas, Flamefast and Gas-Minder systems compatible with standard gas safety shut-off valves?
Many systems are designed to operate with commonly used solenoid gas valves; check individual product listings for compatibility.
