Allegro Industries is a leading venturi blower manufacturer offering a variety of confined space safety products such as respirators, fans, blowers, pumps, air sources and SAR welding systems. The Allegro Air Source Equipment catalogue comprises high-performance ambient air pumps, breathing cold air systems, air compressors, sludge pumps and utility / dewatering pumps. The brand's ambient air pumps provide clean, breathable air for up to three full- / half-face respirator users or two hood users. These rotary vane air pumps do not require internal lubrication, hence eliminating the need for carbon monoxide monitoring systems. They feature a UL-recognised single-phase motor delivering speeds up to 1725 rpm and a brass pressure relief valve to adjust the airflow. These pumps have a maximum working pressure of 15 psi and come equipped with quick-connect OBAC fittings to connect the air hose to the outlet.
The brand also provides a varied range of confined space fans that can deliver both positive and negative airflows and are perfect for ventilation and extraction. These high-output Allegro axial fans feature a stackable design that saves workspace area, moulded-in carry handle for easy portability and bottom enclosure to ensure the safety of electrical components. They are available in air-, electric- and fuel-powered variants with a maximum operating voltage of 230 VAC on Raptor Supplies.