Riello burner solenoid valves are primarily categorized based on fuel type and structural design into two main groups: gas solenoid valves and oil solenoid valves, which are further subdivided into various series and models.
I. Gas Burner Solenoid Valves and Valve Trains
Riello gas burners are typically equipped with valve trains or individual valves from internationally renowned brands (such as Dungs from Germany, Parker, etc.). These are classified based on their function and opening mechanism:
• By configuration and structure:
• Individual valves: Standalone solenoid valves that control the flow of gas (e.g., safety solenoid valves [VS] or regulating solenoid valves [VR]).
• Multifunctional valve trains (e.g., Dungs MB-DLE series): These integrate a filter, pressure regulator, main safety valve, and slow-opening/fast-opening bypass valve into a single unit. They are commonly used in small to medium-sized gas burners (e.g., MB-DLE 405, 410, 412).
• Dual solenoid valve assemblies (e.g., Dungs DMV-D / DMV-DLE series): These contain two independent automatic shut-off valves within a compact housing. They are typically used for medium to high-capacity gas burners (e.g., DMV-D 507, 512, 520).
• By opening characteristics:
• Fast-opening/fast-closing type (e.g., D series): These open or close fully and instantaneously.
• Slow-opening type (e.g., DLE series): These feature a slow-opening, "soft-start" function, which prevents excessive gas pressure surges during ignition. II. Solenoid Valves for Liquid Fuel (Light/Heavy Oil) Burners
In liquid fuel burners (such as the Riello 40 series, RL series, etc.), solenoid valves are typically installed either on the oil pump or within the fuel supply piping.
Categorized by installation location and function: • Oil pump-mounted solenoid valves/coils: These are installed directly on the oil pump (e.g., Suntec oil pumps or those designed specifically for the Riello 40/RG series) and are responsible for controlling fuel shut-off and return flow.
• Multi-stage fuel solenoid valves: Used for single-stage or two-stage firing control (for instance, in a two-stage light oil burner, the solenoid valves for the first and second nozzles open in sequence to facilitate load adjustment).
• Standalone/independent fuel solenoid valves (e.g., Parker solenoid valves): Models such as the Parker 121Z2323 are used in high-capacity light oil burners, including the RL70, RL100, and RL130 series.
Riello burner solenoid valves are primarily categorized based on fuel type and structural design into two main groups: gas solenoid valves and oil solenoid valves, which are further subdivided into various series and models.
I. Gas Burner Solenoid Valves and Valve Trains
Riello gas burners are typically equipped with valve trains or individual valves from internationally renowned brands (such as Dungs from Germany, Parker, etc.). These are classified based on their function and opening mechanism:
• By configuration and structure:
• Individual valves: Standalone solenoid valves that control the flow of gas (e.g., safety solenoid valves [VS] or regulating solenoid valves [VR]).
• Multifunctional valve trains (e.g., Dungs MB-DLE series): These integrate a filter, pressure regulator, main safety valve, and slow-opening/fast-opening bypass valve into a single unit. They are commonly used in small to medium-sized gas burners (e.g., MB-DLE 405, 410, 412).
• Dual solenoid valve assemblies (e.g., Dungs DMV-D / DMV-DLE series): These contain two independent automatic shut-off valves within a compact housing. They are typically used for medium to high-capacity gas burners (e.g., DMV-D 507, 512, 520).
• By opening characteristics:
• Fast-opening/fast-closing type (e.g., D series): These open or close fully and instantaneously.
• Slow-opening type (e.g., DLE series): These feature a slow-opening, "soft-start" function, which prevents excessive gas pressure surges during ignition. II. Solenoid Valves for Liquid Fuel (Light/Heavy Oil) Burners
In liquid fuel burners (such as the Riello 40 series, RL series, etc.), solenoid valves are typically installed either on the oil pump or within the fuel supply piping.
Categorized by installation location and function: • Oil pump-mounted solenoid valves/coils: These are installed directly on the oil pump (e.g., Suntec oil pumps or those designed specifically for the Riello 40/RG series) and are responsible for controlling fuel shut-off and return flow.
• Multi-stage fuel solenoid valves: Used for single-stage or two-stage firing control (for instance, in a two-stage light oil burner, the solenoid valves for the first and second nozzles open in sequence to facilitate load adjustment).
• Standalone/independent fuel solenoid valves (e.g., Parker solenoid valves): Models such as the Parker 121Z2323 are used in high-capacity light oil burners, including the RL70, RL100, and RL130 series.