Shimadzu Outlet Check Valve
OEM-compatible Shimadzu Outlet Check Valve designed to ensure one-way mobile phase delivery, stable pump pressure, and consistent flow performance in Shimadzu HPLC systems.
- Product Name
- Shimadzu Outlet Check Valve
- Part Number
- 228-45705-91
- OEM Part Number
- Shimadzu 228-45705-91
- Material
- Stainless Steel / Chemically Resistant Components
- Valve Type
- One-Way Outlet (Delivery) Check Valve
- Compatible Systems
- LC-20AD/AB, LC-10ADvp, LC-10ATvp, i-Series, LC-30ADSF
The Shimadzu Outlet Check Valve (228-45705-91) is a precision-engineered one-way delivery valve designed for Shimadzu HPLC pump systems, including LC-20AD/AB, LC-10ADvp, LC-10ATvp, i-Series, and LC-30ADSF. Installed downstream of the pump head, it allows mobile phase to flow only toward the analytical column while preventing reverse flow during the pump suction cycle. A properly functioning outlet check valve is essential for maintaining stable pressure, accurate flow rates, and reproducible chromatographic results. Regular replacement as part of preventive maintenance helps eliminate pressure pulsation, baseline instability, and flow inconsistencies, ensuring reliable HPLC system performance. Key Features - OEM-compatible replacement part - Precision one-way delivery valve - Prevents reverse mobile phase flow - Maintains stable pump pressure - Improves flow consistency - Chemically resistant construction - Precision stainless steel body - Easy installation and replacement - Recommended for annual preventive maintenance - Long service life Applications - Shimadzu HPLC pump maintenance - Annual preventive maintenance - Outlet check valve replacement - Pressure pulsation troubleshooting - Flow stability improvement - Baseline noise reduction - Pharmaceutical laboratories - Environmental testing - Food & Beverage analysis - Research & Quality Control laboratories