If your location has a compressor available then this Allegro 9508 Air Driven Centrifugal Blower should fit your needs. It has an aluminum fan for those explosion proof requirements and also has a steel base.
Centrifugal Blower - Air-Driven Blower Allegro 9508 This air-driven centrifugal blower model by allegro industry requires 30 CFM at 40 psi. It uses an aluminum fan for explosion-proof requirements and includes a steel base, polyethylene housing, 2-stage filter, regulator, and lubricator. If used in hazardous environments, use statically conductive ducting.
CONSTRUCTION: 8”(20.3cm) flange on intake and exhaust ports Tough “safety orange” polyethylene construction One piece housing with integrated handle Powder coated 16 gauge steel base and handles Aluminum blower wheel with aluminum hub Steel zinc plated grill Equipped with four rubber feet AIR MOTOR: Galvanized plumbing Brass ball valve Self-sealing vanes take-up their own wear, for constant output Four vane design for more precise inching control and for stalled start-up operation
Filtration: Zinc manifold, ABS cover, nylon guard, polycarbonate bowl, with a 40 micron sintered polyethylene coalescing filter element and 0-1 60 psi (0-11.03 bar) pressure gauge Lubricator: Zinc manifold, ABS cover, polycarbonate bowl with fill port for easy servicing FAN: Aluminum wheel with aluminum hub
weight 53 lbs. free air 1800 1 90 degree bend 1350 2 90 degree bends 900
*Click on downloads for spec sheet and parts book on this Allegro 9508 Air Driven Centrifugal Blower