Gilian Dual Port High/Low Flow Manifold for use with GilAir Plus
Enabling Simultaneous High and Low Flow Personal Sampling Methods
Simultaneous samples usings the GilAir Plus
Reduces air sampling time and costs
Increases worker comfort
Monitoring worker exposures to airborne particulates, gases, and vapors often requires Industrial Hygiene and Occupational Health & Safety professionals to take multiple air samples from the environment of one worker. Such sampling may require a worker wearing multiple air sampling pumps or returning to sample on a different day. Setting up and deploying multiple air sampling pumps or returning to sample on a different day can be expensive, inconvenient, and uncomfortable.
The Gilian Dual Port High/Low Flow Manifold enables connection of two different sampling media thus eliminating the need for multiple sampling pumps. Two manifold adjustments enable the setting of separate flow rates for each media connection. A single tube connects the Gilian Dual Port High/Low Flow Manifold to the GilAir Plus providing an efficient method for obtaining two samples from a worker during a single shift.
The Dual Port High/Low Flow Manifold capitalizes on the unique high-flow constant pressure capabilities of GilAir Plus. High-flow constant pressure, one of four sampling modes available on GilAir Plus, maintains a constant negative pressure in the sampling train between the pump and manifold. In constant pressure sampling, adjusting the flow rate of either media connection will not affect the other. Similarly, sample media loading on one side does not affect the second side.
The Dual Port High/Low Flow Manifold is designed for use in applications for sampling of heavy metals or asbestos fibers using two filter cassettes at the same flow rate or simultaneous sampling using a filter cassette and sorbent tube. In addition, sampling methods that do not create significant backpressure changes from start to finish may be accomplished using this manifold accessory.
Refer to the Dual Port High/Low Flow Manifold and GilAir Plus user manuals and the technical paper, GilAir Plus QuadModeSM Split Sampling in the High-Flow Mode for additional information.