Gas Valves for Boilers
We provide total control solutions for all types of domestic (combi) boilers. You can choose from different product families that combine diverse functions. Pick a Gas Valve suitable for your product in the table below and read more about our products. You can also choose a complete system that combines valve and ignition functions. With an unrivalled range of system components, we can also meet many of the needs of special market applications. Options like electric modulating regulators, high/low regulators and gas/air operator regulators and accessories are available. Contact us for more information.
Please select Automatic Ignition Complete system with Boilers Electronics System Valve
Compact      
Compact Automatic    
CVI  
CVI-m
Compact
Compact gas controls are servo-operating combination gas controls and comprise a pilotstat, an operator and a straight line servo pressure regulator or throttle. The Compact combination gas controls can provide fully automatic control of a combi boiler when used in conjunction with a Honeywell pilot burner, thermocouple and room or boiler thermostat. Compact combination gas controls comprise a standard body to which a range of sub-assemblies are factory fitted to give various system options. This makes boiler system design much easier as technical specifications and most unit dimensions are the same for all system options. Options include servo pressure regulation, throttle valve, (switchable) softlite, electrical or mechanical modulation and high-low control for the complete range of control applications.

Compact is EN 126 approved.
List of approvals

Read more about the features and technical specifications in the product handbook, available in PDF (1.016 kb).
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Compact Automatic
The Compact Automatic is used in a system context in conjunction with either a direct spark ignition (DSI), intermettent pilot (IP) of Hot Surface Ignition control module and associated devices to provide programmed safe light-up and supervision of the main burner of an appliance. Compact Automatic combination gas controls comprise a standard body to which a range of sub-assemblies are factory fitted to give various system options. This makes boiler system design much easier as technical specifications and most unit dimensions are the same for all system options. Options include servo pressure regulation, throttle valve, (switchable) softlite, electrical high-low control and electrical or mechanical modulation for the complete range of control applications. Compact Automatic combinations gas controls are available in line of low voltage versions and in three capacity ratings for total system versatility. Customer specific voltage models are also offered.  

Compact Automatic is EN 126 approved.
List of approvals

Read more about the features and technical specifications in the product handbook, available in PDF (1.768).
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CVI Gas Control
The Combined Valve and Ignition (CVI) system has been developed for appliances with an automatic ignition system. The gas controls have been designed to have the S4565/S4575/S4585 series ignition control (see boiler electronics) attached directly to the valve. The combined system then provides programmed safe light up, flame supervision and regulation of gas flow to the main burner and/of pilot burner of the appliance. The automatic gas control comprises a standard body to which a range of features can be included to give various functional options. These options include servo pressure regulation, throttle valve regulation, fully adjustable softlite, gas/air control 1:1 or amplified and electrical high-low or modulating control to fulfil the complete range of control applications.  

CVI Gas Controls is EN 126 approved.
List of approvals

Read more about the features and technical specifications in the product handbook, available in PDF (364).
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CVI-m
The Combined Valve and Ignition Modulating system (CVI-m) has specially been developed for applications in gas fired appliances with direct burner ignition that require electric modulating control of the gas input. The system has been designed to have a S4565.M series ignition control attached directly onto the valve. The combined system then provides programmed safe light up, flame supervision, regulation and modulation of Hi-Lo control of the gas flow to the main burner of the appliance. The CVI-m system comprises a modulating gas control with on/off regulating and modulating function and an ignition control with integrated power supply for the electric modulating operator. The CVI-m gas control comprises a standard body to which a range of features can be factory included to give various functional options. These functional options include: servo pressure regulation and modulating control to fulfil a range of control applications.  

CVI-m is EN 126 approved.
List of approvals  

Read more about the features and technical specifications in the product handbook, available in PDF (364 kb).
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