Closed Systems Introduction

Through leaks, spills, and ventilation, an “open” solvent system will release chemical exhaust directly into the laboratory environment. This introduction may be reduced by adding several key components to the typical instrument. Our mission is to create a safer, healthier and cleaner workplace by providing unique, effective and price sensitive solutions to fluid handling problems in the laboratory.

         Reference above diagram:

         1A - A properly sealed solvent reservoir with secure fluid connections.
         1B - A ventilation control valve at the solvent reservoir to displace vacuum while minimizing evaporation.
         2A - A properly sealed solvent waste container with secure fluid connections.
         2B - An exhaust filter at the waste container to capture escaping fumes.

1A Details - SOLVENT RESERVOIR FLUID CONNECTIONS
For a closed-system solvent reservoir, the container first requires a bottle cap with ports to fit the specific tubing sizes removing solvent from the bottle. Vaplock solvent caps provide versatile, leak-resistant connections where mobile phase tubing may be attached securely.

1B Details - SOLVENT RESERVOIR VENTILATION CONTROL
In reservoirs where fluid is actively removed and no new solvent or gas pressure is simultaneously added, to complete the closed system the container requires a device to control solvent evaporation. With use of an automatic control valve, air may still enter the bottle as a pump moves the liquid phase out to the instrument. Vaplock solutions for closed-system solvent delivery includes both standalone vent control valves and built-in valve cap options.

2A Details - WASTE CONTAINER FLUID CONNECTIONS
Containers to collect solvent waste vary in size and in the specific means required to convert them to closed system. By selecting an appropriate container, waste may be sealed effectively, allowing effluent tubing to drain into the container without leaks or venting, forcing exhaust fumes through a single aperture where solvent vapors may be captured before entering the laboratory. Vaplock waste collection manifolds and kits are designed to conform to a wide range of common laboratory and industrial containers, with versatile connection types and a uniquely modular system allowing reconfiguration and addition of new manifold components as required.

2B Details - WASTE CONTAINER VENTILATION CONTROL
As solvents draining to waste may volatilize rapidly, the waste container can be the most significant generator of hazardous chemical vapor in an HPLC system. Available in several cartridge formats, Vaplock exhaust filters mitigate health hazards and reduce harmful chemical emissions and odors from laboratory waste containers. Developed and tested specifically for HPLC organic solvents, they may be used in conjunction with Vaplock breakthrough color indicators to determine longevity and establish a replacement schedule.