There are a variety of possible synonyms for the term "surge brake shuttle valve," depending on the specific context in which it is being used. In general, some possible options might include terms like hydraulic control valve, fluid regulator, pressure regulator valve, or hydraulic actuator. These terms all refer to components or devices that help to regulate the pressure or flow of fluid in a hydraulic system, which can be critical in ensuring proper performance and safety. Regardless of the specific terminology used, it is important to choose a name that accurately reflects the function and purpose of the component in question.