Energy-efficient dust control

Aerodyne, a division of Abanaki Corp., says its new Vacu-Valve Armadillo closed-construction airlock valve provides positive seal under hoppers, cyclones, and dust collectors. The company says it requires no controls, lubrication, power source, or maintenance, allowing it to operate for about one-sixth the cost of a rotary airlock valve. The Armadillo’s duckbill valve design allows free-flowing continuous discharge, automatically adjusting to the desired vacuum.

Self-retracting lifeline

DBI-Sala says its Ultra-Lok RSQ SRL with Rescue is a first-of-its-kind self-retracting lifeline, offering dual-mode operation that provides both fall arrest and rescue/descent modes. In the fall arrest mode, a speed-sensing brake automatically stops the fall, reducing the forces exerted on the user to safe levels of 900 pounds or less. If a fall occurs while in the rescue/descent mode, the device will arrest the fall and automatically lower the worker safely to the ground or next level. A 50-foot lifeline provides the worker with mobility.