Ventilation Ducts for Mines

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Galvanized Spiral Gas Drainage Tube is adopted international advanced production equipments by our company. It’s galvanized with the inner and outside. It includes jointing spiral tube and without-jointing spiral tube. It has the following advantages: smooth inner wall, little resistance, light in weight, corrosion-proof, long service life, low cost, etc, it is the ideal equipment of Gas Drainage Tube in coal mines.
The jointing spiral tube is adopted cast steel flange connection, the automatic welding technics for the connection of tube body and flange.
Comparing with riveting technics, the technics avoids the second scathe to the tube body, and also with better capability of gasproof.
Due to the techniques of riveting with the misdistribution of joints, and the improper installation is easily leading to rips of tube. Aiming to the point, our company meets track with international technics and adopts integrated welding technics to avoid the existence problems of riveting.

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