The Proportional Solenoid is a type of electromagnetic device that can control the flow or pressure of a fluid in a piston pump. It is commonly used in hydraulic systems to achieve precise and variable control over the pump's operation. The Assembly consists of parts like Seal-O-Ring-Stor, Solenoid Coil, and Solenoid Ring.Attributes:• Allows for the adjustment of the pump's output flow rate• Manufactured to precise specifications and are built for durability and reliabilityApplications:The Proportional Solenoid used in the Piston Pump acts as a valve, regulating the fluid flow into and out of the piston chamber, which affects the pump's performance.