About Spirotherm

Spirotherm, Inc. manufacturers the industry leading high-efficiency Spirovent® coalescing type air elimination products and its extended line of Spirotrap® dirt separators. Eliminating air and dirt does away with many maintenance items that have been considered routine, saves energy, and improves overall system performance and heat transfer. Spirotherm has been developing and manufacturing products to improve water quality in the HVAC industry for almost 40 years. Sizes range from 3/4” to 36” pipe, flows to over 30,000 GPM for residential, commercial, industrial, and institutional applications.

Product Line

Spirotherm has a complete product mix  for air elimination and dirt separator in the HVAC industry. The product lines can be divided in many categories.

Combination Air/Dirt 

The Spirovent® Dirt and Drain Air Eliminator / Dirt Separator uses the patented Spirotube® medium to “scrub” the air and dirt from the system fluid and creates two low velocity, low turbulence separation chambers.

Product Summary:

  • 1″ through 36″ Pipe Size
  • Patented Spirotube® Element
  • Element Fills the Entire Vessel
  • Two Cost Effective Full Flow Applications – One Vessel
  • Flow Rates to over 30,000 GPM
  • Unsurpassed Efficiency

Air Elimination 

The Spirovent® Air Eliminators, using our patented Spirotube® coalescing medium, “scrub” the air from the system fluid and allows it to break free in a low velocity, low turbulence removal chamber.

Product Summary:

  • Patented Dry Vent Head Design
  • Patented Spirotube® Elements
  • Elements Fill the Entire Vessel
  • 3/4″ through 36″ Pipe Size
  • Flow Rates to over 30,000 GPM
  • Unsurpassed Efficiency

Dirt Separator 

The Spirotrap® Dirt Separator, primarily applied in open condenser water systems, uses the patented Spirotube® medium to create a low velocity, low turbulence dirt separation chamber. Dirt and sediment is then able to break free of the flow path and fall to the bottom for blow down using the factory supplied ball valve.  Simple to install with a straight in-line full flow design, it eliminates the need for high maintenance side stream filters.

Product Summary

  • 3/4″ through 36″ Pipe Size
  • Patented Spirotube® Element
  • Element Fills the Entire Vessel
  • Cost Effective Full Flow Applications
  • Flow Rates to over 30,000 GPM
  • Unsurpassed Efficiency

Hydraulic Separators

The Spirovent Quad VDX combines the features and benefits of the industry leading Spirovent® air eliminator and Spirotrap® dirt separator with a center chamber between the four nozzles.  Used primarily as a hydraulic separator in a low loss header design, it is available in brass from 1″ through 2″ and steel through 12″ as standard products.  Larger custom sizes can be reviewed per application.

Product Summary

  • 1″ through 12″ Pipe Size
  • Patented Spirotube® Element
  • Element Fills the Entire Vessel
  • Two Full Flow Applications—One Vessel
  • Plus:  Hydraulic Separator
  • Plus:  Low Loss Header

Automatic Air Valve 

The Spirotop VTP has a unique “dry” vent design that helps prevent the system fluid from reaching the sping actuated Viton® seat and seal assembly, which is the cause of most conventional air vent failures.  The all brass, stainless, and non ferrous construction is rated at 150 psig at 270°F as standard and carries a 20 year limited warranty.  For special applications, both high temperature and high pressure options are available.

Product Summary

  • Patented Dry Vent Design
  • All Brass, Stainless, Non Ferrous
  • 1/2″ Commercial Connection
  • 150 psig at 270°F Standard
  • 20 Year Limited Warranty
  • Cost Effective Retrofit

Spirotherm Engineering Services

Upon request our local representative personnel and / or factory regional staff will visit the site to confirm design objectives and review any installation and application constraints that may be present. All options and design parameters will be reviewed and the most cost-effective solution offered. From custom designed dimensions to units in parallel, to multiple unit application options, Spirotherm has a well documented history and solid references for unique systems.

To learn more about Spirotherm and its products, click here.