Underground mine and tunnel ventilation products

Couplings

Snap-Roc Coupling System

Manufactured with soft ends this coupling system comes with snap hooks one end and D rings on the other end. All fittings are attached to the tubing during the manufacturing process. Each Length of Tubing comes complete with an exhaust end with spigot to insert into the intake end of the next section. This provides a more efficient seal with less air leakage and much faster installation then traditional End Ring and Multi-clip coupling systems. 

Zip-Roc Coupling System

Zipper couplings are available for mine and tunneling applications. Manufactured with soft ends this coupling system makes for quick installations while reducing coupling losses at the tubing connection points.

Custom zipper coupling available for mine and tunneling applications.

Ring End with Clip

The vent tubing is manufactured with spring steel rings at each end. The ring end of one tube is inserted into the ring end of the next length of tubing being installed. The rings are then pulled back leaving 3” between rings for installation of the Multi-Clips. Recommended spacing of Multi-Clips is 20” to 24” around perimeter of tubing (ie) - 6 multi-clips for 42” to 48” diameter tubing.

Steel V-Lock Coupler

Used for connecting lengths of steel ducting together. Available in round or oval. Comes in a wide range of diameters.