What type of feedwater regulator is equipped with a fuel shutoff feature?

The feedwater regulator that is equipped with a fuel shutoff feature is the float type. This type of regulator operates based on the level of water in the boiler. As the water level rises or falls, a float connected to the regulator adjusts the flow of feedwater accordingly.

The fuel shutoff feature is particularly important in ensuring safety and efficiency. When the water level drops below a certain point, the float mechanism triggers a shutoff valve for the fuel, preventing the boiler from operating without sufficient water. This helps to avoid overheating or damaging the boiler, which can happen if it is allowed to run dry.

In contrast to the float type, the pressure type operates based solely on the pressure within the boiler, while the electronic type relies on sensors and control systems for operational adjustments. The manual type requires human intervention to control the feedwater flow, lacking automatic safety measures like a fuel shutoff feature. Thus, the float type's integration of an automatic fuel shutoff with its water level management makes it a crucial component for safe boiler operation.