The Suntec SL1 is an independent in-line solenoid valve developed using Suntec’s expertise in burner pumps with integrated solenoid systems. It is specifically designed for liquid fuel burner applications, where precise and immediate fuel cut-off is essential for safety and performance.

This valve operates as a direct-acting (2/2 way) solenoid valve, meaning it does not require pressure difference to function. This ensures consistent performance even at low or zero pressure conditions, making it highly reliable in burner systems.

The SL1 is commonly installed in-line within the fuel supply system, where it controls fuel flow to the burner nozzle. When energized, the valve opens to allow fuel flow; when de-energized, it immediately shuts off the flow, ensuring safe burner shutdown.

It is suitable for fuels such as domestic heating oil, kerosene, and biofuel blends (including B30 and B100 depending on model), making it compatible with modern heating systems.

Key Features

• Direct-operated in-line solenoid valve for oil burner systems

• Automatic fuel cut-off without differential pressure requirement

• Fast response for safe burner start and shutdown

• Compact and robust industrial design

• Complies with ISO 23553-1 safety standard

• Low power consumption solenoid coil

• Compatible with domestic oil, kerosene, HVO and biofuel blends

• Suitable for burner systems up to 1000 kW capacity

Applications

• Industrial oil burners

• Oil-fired boilers

• Commercial heating systems

• Industrial furnaces

• Fuel control systems

• Burner safety shut-off applications

Why Choose This Valve

• Reliable direct-operated solenoid valve for precise fuel control

• Trusted Suntec burner component technology

• Provides instant fuel cut-off for improved safety

• Works without pressure differential requirement

• Ideal for industrial burners up to 1000 kW capacity

Technical Description

The Suntec SL1 Solenoid Valve operates as a direct-acting normally closed (NC) valve, meaning it remains closed when not energized.

When the solenoid coil is powered, it generates a magnetic field that lifts the valve mechanism, allowing fuel to pass through the valve. When power is removed, the valve immediately closes, ensuring instant fuel shut-off.

Since the valve is direct operated, it does not rely on system pressure to open or close. This makes it highly reliable in varying operating conditions, including low-pressure or start-up phases of burner operation.

The valve is designed with high-quality sealing materials (FKM) and brass body construction, ensuring durability and compatibility with different fuel types used in industrial heating systems.

Technical Specifications