**FREIGHT IS INCLUDED IN THE PRICE ON THIS ITEM**
Hazardous Location Duct is specialized to conduct static charges away from the airflow. Static buildup could create a spark that would compromise safety in explosive environments.Super Vacuum Haz Lo spiral ducting Spec. sheet
This duct comes with a built-in, easy to carry bag and can be attached to other duct as an extension by simply tightening the belted cuff. This quick and easy process doubles the length of the duct without use of adapters that take up space, get lost, and take up time to install.
The duct consists of graphite fibers that conduct any charge that could build-up as a result of the airflow. Airflow through the standard duct builds up static charges much in the same way as walking across carpet does.
The special clip on the end of the duct must be connected to a grounding post that carries the charge back to earth ground usually this is accomplished through the ground plug of the electric motor.
Spiral Duct Specs:
Material Single ply neoprene impregnated polyester -UL94-V-O Flame Retardancy, NFPA701, California T-19.
Structure Class 1 Steel Spring Wire Helix (ASTM 227).
Wearstrips Heavy duty vinyl with self adhesive neoprene backing, APX 25-27 oz Sq/Yd. Abrasion Resistance of 18,000 cycles from H-22 wheel with 1000 gram load (FSTM 191 Method 5306).
Conductivity Rated to 100,000 ohms or less per square inch.
Length 20 ft custom sizes available.
Grounding Product should be grounded on each end, with a solid means of connection. Grounding this product on one only will still provide a safe positive means of discharging static build-up.