Preventing leaks

Preventing leaks during an analysis ensures adequate flow pressure in the system and the integrity of the sample.

Leaks can occur at any tubing connection, gasket, or seal, but they are most common at tubing connections. Low-pressure leaks (on the intake side of the solvent manager’s pump) cause solvent loss and air introduction during the intake cycle. Leaks at high-pressure fittings (downstream of the check valves) can release solvent but do not introduce air.

To prevent leaks, follow Waters’ recommendations for the proper tightening of system fittings. Note that different techniques apply to re-tightening fittings and installing them for the first time.

Contents

• Installation recommendations for fittings