Shimadzu High Pressure Valve Rotor for Shimadzu LC-2030, LC-2030 Plus, LC-2050

The Shimadzu 228-56098-00 is a precision High Pressure Valve Rotor designed for the injection valves of Shimadzu's i-Series (Integrated HPLC) systems. It is a critical wear component responsible for switching flow paths during sample injection while maintaining a leak-tight seal under high-pressure conditions. As the primary moving part in the injection valve, the rotor is subject to friction and eventual wear, which can lead to baseline noise or cross-port leaks. The rotor features precision-machined grooves that align with the ports on the stator. Its "High Pressure" designation ensures that the material does not deform under the high backpressures generated by modern sub-2µm or 3µm particle columns used in these integrated systems.

Used, in great condition.