Liquid only lance injector

A lance injector assembly for an exhaust component, the lance injector assembly comprising:

• an exhaust conduit;
• a shaft configured to extend into the exhaust conduit and dispense reductant from a hydraulically-actuated valve;
• an actuator configured to operate the hydraulically-actuated valve;
• and
• a mounting system that couples the actuator and the shaft to the exhaust conduit while preventing the actuator from directly contacting the exhaust conduit, the mounting system comprising:
• a spacer component coupled to and surrounding a portion of the shaft that is disposed outside the exhaust conduit, the spacer component coupled to the exhaust conduit,
• an inner cap component coupled to and surrounding the spacer component,
• an outer cap component disposed at an upper end of the shaft and an upper end of the spacer component at a location outside the exhaust conduit,
• mounting ring members securing the inner cap component to the outer cap component, and
• an insulating region defined by an outer surface of the shaft, inner surfaces of the spacer component, and a lower surface of the outer cap component.