How is the fluid ported in and out of a radial piston pump?

In a radial piston pump, fluid is ported in and out through check valves located in the pistons. This design allows for efficient control of the fluid flow, as the check valves prevent backflow, ensuring that fluid enters the piston chamber during the suction stroke and is expelled during the discharge stroke. Each piston in a radial piston pump has its own check valve that opens and closes in response to the motion of the piston, allowing fluid to be drawn in and pushed out in a controlled manner. This mechanism is crucial for maintaining pressure and ensuring the pump operates effectively across its intended range of applications.

Mechanical seals are typically used to prevent leaks between rotating and stationary components, but they do not function as a flow control mechanism in this context. Flexible connectors could be part of the system, but they are not the primary method for fluid movement in a radial piston pump. A fixed orifice provides a constant flow restriction but does not facilitate directional control or the necessary check dynamics for the pumping action. Hence, check valves in the pistons are fundamental to the operational efficiency and reliability of radial piston pumps.