SoloCheck
Single Use Check Valves

SoloCheck is Alphinity’s single-use check valve, engineered for reliable one-way flow control in high-purity bioprocessing. By ensuring liquid flow in one direction only, SoloCheck safeguards processes against backflow that can contaminate product, disrupt pressure balance, or damage critical equipment such as pumps and filters.

Constructed with the same ultra-pure polypropylene body and  diaphragm used in PIXER® pumps and VannX valves, SoloCheck delivers uniform performance and system behaviour across the entire fluid path. Its gamma-stable, integration-ready geometry features a clean, straight-through flow path that opens with minimal pressure and seals tightly to prevent reverse flow, all without springs, metal parts, or complex mechanics.

Engineers value SoloCheck’s ease of use, dependable shut-off, and compatibility across a wide range of applications. Use it downstream of a PIXER® pump to prevent back pressure, pair it with a VannX valve to block crossflow, or integrate it into a tubing set or manifold wherever reverse flow protection is required.

SoloCheck provides reliable, sterile, single-use performance—protecting your process, your product, and your equipment.