Spiral Pipe Applications

Spiral duct has a versatility that makes it suitable for use in an extensive range of industrial and commercial applications. At Spiral Manufacturing Co., Inc., we offer a wide range of spiral pipe products to meet the requirements of these applications.

Commercial Applications for Spiral Duct

Spiral piping, including spiral insulated pipe, is used primarily in HVAC commercial building applications. It can be found in a variety of commercial structures, including:

  • Churches
  • Clinics and hospitals
  • Community centers
  • Sports facilities
  • Restaurants
  • Schools and universities
  • Office buildings and warehouses
  • Community and entertainment facilities
  • Retail stores and malls
  • Many more
Commercial Applications For Spiral Duct

Industrial Applications for Spiral Duct

The ability of spiral pipe to endure the effect of both positive and negative pressures makes it ideal for use in numerous industrial applications, including:

  • Heating, Ventilation, Air, and Cooling (HVAC) systems
  • Removal of airborne particulates, including dust
  • Removal of environmental toxins, including chemical fumes
  • Removal of wood shavings, sawdust, and other manufacturing byproducts
  • Bulk material handling operations, including loading of hoppers and grain trucks
Industrial applications of spiral pipe

Spiral Vinyl-Coated Pipe

The strength of spiral pipe in combination with the chemical inertness of PVC make spiral vinyl-coated pipe ideal for applications involving the removal of chemical fumes and underground HVAC where strength and corrosion resistance because of minerals in backfills (such as salts) is vital.

Our vinyl-coated spiral pipe has the following characteristics:

  • UL listed
  • Galvanized steel coated with polyvinyl chloride material
  • Inside thickness of 1 mil (standard) and outside thickness of 4 mils (may be reversed for special purposes)
  • Standard external corrugations for underground applications involving 14” diameter pipe
  • Standard gauges are: 20 gauge (26” to 48”), 24 gauge (17” to 24”), 24 gauge (4” to 16”)

Spiral Insulated Pipe

Our dual-wall spiral insulated duct provides both sound attenuating and thermal insulating benefits to air distribution systems. As a highly effective dual-wall product, it possesses outer and inner spiral pipes with a layer of glass fiber insulation packed in between, effectively conserving energy and reducing noise.

Material Handling and Truck Loading

Spiral pipe is ideal for bulk material handling applications due to its low pressure loss, efficient airflow characteristics, and ability to withstand high pressure. At Spiral Manufacturing Co., Inc., we offer a comprehensive selection of trailer loading accessories, including:

  • Diverter valves
  • Ball joints
  • Air actuated gates
  • Quick disconnects


We offer an extensive line of slip-joint, seam welded fittings designed for use with spiral pipe. Standard fittings include various types of crosses, elbows, laterals, reducers, tees and other parts made from 20 gauge steel (with other optional gauges available).

For more information about the spiral vinyl-coated pipe we offer at Spiral Manufacturing Co., Inc., call us today at 763.755.7677 or send us an email at info@spiralmfg.com.

Underground PVC Standard Lateral Section