BioLogic LP Valves

Bio-Rad offers three valve options for the BioLogic LP system: a buffer selection and automated sample loading valve, a manual sample injection valve, and a fraction collection/column bypass valve.

Buffer Selection and Automated Sample Loading Valve

The optional SV-5 buffer select valve expands the preparative purification capabilities of the BioLogic LP system, allowing it to selectively control up to five buffers and to automatically inject large-volume samples. The SV-5 valve attaches directly to the BioLogic rack and is controlled by the BioLogic LP system.

Manual Sample Injection Valve

The MV-6 injection valve has six ports with female luer fittings. It accommodates user-made loops of any volume. The MV-6 valve mounts directly on the BioLogic rack and the Econo gradient pump rack.

Fraction Collection/Column Bypass Valve

The optional SV-3 diverter/bypass valve is a two-position solenoid valve controlled through the BioLogic LP system, Econo gradient pump, or Model EP-1 Econo pump. When connected to the BioLogic LP system, the SV-3 valve directs effluent flow from the column to a bypass position, or from the fraction collector to a waste position.

The function of the valve is determined by the mini-DIN connection on the rear of the instrument and by the plumbing of the valve. When connected to either the Econo pump or the Econo gradient pump, the SV-3 valve functions only as a fraction collector diverter valve. The SV-3 valve connects directly to the BioLogic rack and the Econo gradient pump rack.