Which type of fuel booster pump is known to require a pressure relief valve?

The type of fuel booster pump known to require a pressure relief valve is the sliding vane pump. Sliding vane pumps operate by utilizing vanes that slide in and out of a rotor, creating a series of chambers to move the fuel. Because of their design and operation, pressure can build up within the system if there is a blockage or if the flow is restricted. To prevent damage to the pump and the fuel system, a pressure relief valve is integrated into the system. This valve allows excess pressure to be released safely, thus protecting the pump from potential overpressure conditions.

Additionally, the sliding vane pump's operational dynamics necessitate this safety feature, as maintaining a consistent flow while managing pressure is critical to prevent cavitation and ensure the longevity of the pump. In contrast, other types of pumps such as centrifugal and gear type pumps may manage pressure differently through their design and operation characteristics, and while they may have certain protective measures, they do not universally require a separate pressure relief valve in the same way as sliding vane pumps.