F&J - Model GAS-22E-D Global - Low Volume Air Sampler (240 - 240 VAC) - Brochure

The Model GAS-22E-D Global Air Sampling System is a microprocessor controlled low-volume air sampler consisting of an oil-less, carbon vane vacuum pump, with a constant airflow regulator for use where a nearly constant airflow is desirable. The regulator holds a constant pressure drop across an in-line venturi, by varying the flow through a bypass valve into the pump. This system allows the pump to work at a minimum pressure drop at all times, permitting it to run cooler, thus extending its service life. The oil-less pump requires no lubrication to maintain optimal efficiency during its service life. The pump is mounted on a sliding base plate, which can be secured within the aluminum environmental weatherhouse, model WH-3HEPA designed for desert environments.wer source. This powerful air sampler is the lightest weight low volume air sampler available.