Machine Design

High-back-pressure pump

The Gilian 5000 high-back-pressure air-sampling pump monitors worker exposure to hazardous gases, vapors, and particulates at 20 to 5,000-cc/min flow rates.

The pumps provide constant flow control up to 70-in. H20 back pressure at 1 lpm. The higher back-pressure allows for the completion of specialized sampling applications. The user-friendly device features a four-button design with lock-out and a memory-free NiMH battery.

Sensidyne Inc., 16333 Bay Vista Dr., Clearwater, FL 33760, (800) 451-9444,

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