The duct hose,or ventilation pipe is a hollow pipe used for ventilation. It is normal to see in all the factory or industrial producing. The shape is mostly round or square. The plates, profiles and other main finished materials used in the production and installation is important. It shall comply with the current national standards for design and related products.And it should apply the factory inspection certificate, and the materials shall be checked and accepted according to the relevant current national standards when entering the site.The product category can based on the following side.
Marine duct pipes which have positive pressure duct pipes, negative pressure duct pipes and PE film duct pipes. Ventilation pipe has galvanized sheet (white iron) air pipe, stainless steel duct hose. And also has glass fiber reinforced plastic duct pipe, plastic duct pipe, composite material duct, color steel sandwich insulation board duct hose. There are more of rubberized cloth duct pipe (such as mining air duct), mining use plastic duct pipes, etc. telescopic duct pipes, flame-retardant air pipes, aluminum foil composite insulation pipes, central air-conditioning insulation hoses.
Ventilation pipes generally include: purification system return air ducts, central air-conditioning ventilation ducts, industrial air supply and exhaust ventilation ducts. There are more environmental protection system suction and exhaust ducts. And mine drainage gas pipes, mine rubberized cloth air ducts; fire flue ventilation ducts, etc.
Ventilation pipes generally have: round, rectangular, spiral, corrugated, etc..