Name

Spirotherm

Legal name

Spirotherm, Inc.

Website

https://spirotherm.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

HVAC Water Quality Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Power Boiler and Heat Exchanger Manufacturing (332410)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Air Quality & Filtration Equipment (IAQ) (IMAHAKAI)

Keywords

• HVAC water treatment
• Air elimination separators
• Dirt separation equipment
• Hydronic system components
• Vacuum degassing systems

Headquarters

HQ city

Glendale Heights

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. HVAC Equipment Sales: Manufacture and sale of high efficiency air elimination and dirt separation products for residential, commercial, industrial, and institutional HVAC applications. Products include Spirovent® air eliminators and Spirotrap® dirt separators sold through direct sales network.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Spirotherm manufactures high-efficiency coalescing type air elimination products (Spirovent®) and dirt separators (Spirotrap®) for HVAC hydronic systems, using its patented Spirotube® coalescing medium. The product line spans residential (Junior series brass components, 3/4" to 2") and commercial/industrial (steel fabricated units, 2" to 36" with flows exceeding 30,000 GPM) applications, complemented by Spirovent Quad® hydraulic separators, Spirotop® automatic air vents, and the Superior S600 vacuum degasser.

Product overview

Spirotherm is a manufacturer of high efficiency air and dirt separation products for HVAC systems, operating as a wholly owned subsidiary of Spiro Enterprises, Inc. for nearly 40 years. The product portfolio centers on two core brand families: Spirovent® coalescing type air elimination products (including VSR, VHR, VDT, VHT, VDN, VHN series air separators and combination units) and Spirotrap® dirt separators (including TDT, THT, TDN, THN series). These are complemented by Spirovent Quad® VDX hydraulic separators combining all three functions, Spirotop® automatic air vents, and the Superior S600 vacuum degasser. Products span residential (Junior series brass components in 3/4"-2" sizes) through commercial/industrial applications (steel fabricated units from 2" to 36" pipe, flows exceeding 30,000 GPM). The company holds ASME Section VIII fabrication certifications and UL/NRTL electrical listings for the S600. All commercial steel flanged models are fabricated and stamped per ASME standards.

Differentiator

Problem solved

Functional benefit

Brands

• Spirovent: Coalescing type air elimination products for removing air from HVAC systems
• Spirotrap
• Spirotop
• Spirovent Quad

Products and services

• Spirovent VSR Series Air Eliminator Coalescing type air eliminator for commercial applications, designed to eliminate air from hydronic HVAC systems in pipe sizes from 2" to 36".
• Spirovent VHR Series High Velocity Air Eliminator High velocity air eliminator designed specifically for central plants and district systems where large volumes of water are being distributed, typically chilled water applications.
• Spirovent VDT Series Air/Dirt Separator Combination air/dirt separator using patented Spirotube medium to scrub air and dirt from system fluid, creating two low velocity, low turbulence separation chambers. Sealed vessel design available in sizes 2" through 36" pipe, handling flows to over 30,000 GPM.
• Spirovent VDT-M Series Air/Dirt Separator with Magnet VDT model with strong magnets positioned within the flow to capture ferrous material (magnetite). Can be cleaned without isolating the unit. Available in sizes 2" through 12" pipe.
• Spirovent VHT Series High Velocity Air/Dirt Separator High velocity version of the combination air/dirt separator designed for central plants and district systems where large volumes of water are distributed, typically chilled water applications. Available in sizes 2" through 36" pipe.
• Spirovent VDN Series Air/Dirt Separator (Removable Head) Drain model with removable head and tube bundle construction allowing access to Spirotube bundle for inspection or cleaning. Available in sizes 2" through 24" pipe.
• Spirovent VHN Series High Velocity Air/Dirt Separator (Removable Head) High velocity drain model with removable head and tube bundle construction for inspection and cleaning access. Designed for high velocity chilled water systems.
• Spirotrap TDT Series Dirt Separator Dirt separator primarily for condenser water systems, helps prevent fouling and improves chiller operation. Available in sizes 2" through 36" pipe.
• Spirotrap THT Series High Velocity Dirt Separator High velocity dirt separator designed for central plants and district systems with high velocity flow conditions. Available in sizes 2" through 36" pipe.
• Spirotrap TDN Series Dirt Separator (Removable Head) Dirt separator with removable head and tube bundle construction for inspection and cleaning access. Available in sizes 3/4" through 36" pipe.
• Spirotrap THN Series High Velocity Dirt Separator (Removable Head) High velocity dirt separator with removable head design for central plants and high velocity chilled water systems.
• Spirovent Quad VDX Series Hydraulic Separator Provides hydraulic separation combined with features of Spirovent and Spirotrap, all within a low loss header design. Available in brass (1"-2") and steel (2"-12") constructions.
• Spirotop VTP Automatic Air Vent Low profile vent valve with leak-resistant, high point vent design. Resists dirt particles which can cause ordinary vents to leak. Available in standard, solar (HT), and stainless steel (SS) versions.
• Superior S600 Vacuum Degasser Creates pressure change to temporarily place system fluid in negative pressure (vacuum) state, releasing dissolved gases from the fluid. Achies negative pressure of -14.5 PSI in the degassing vessel. Features programmable microprocessor control with touch display and real-time clock. UL 73 and CSA C22.2 No. 68 certified.
• Spirovent VDR Series Brass Combination Air/Dirt Separator Junior series brass combination air/dirt separator for residential applications, available in sizes 3/4" to 2" pipe with threaded, sweat, or press fit connections. Optional magnet version (VDR-M) available.
• Spirovent VJR Series Air Eliminator (Threaded) Junior series threaded air eliminator for residential applications, sizes 3/4" to 2". HT version available for solar systems.
• Spirovent VJS Series Air Eliminator (Sweat) Junior series sweat connection air eliminator for residential applications, sizes 3/4" to 2". HT version available for solar systems.
• Spirovent VJP Series Air Eliminator (Press Fit) Junior series press fit connection air eliminator for residential applications, sizes 3/4" to 2".
• Spirovent VJV Series Air Eliminator (Vertical) Junior series vertical configuration air eliminator for residential applications, sizes 3/4" to 1-1/4".
• Spirotrap TDN-M Series Dirt Separator with Magnet Junior series dirt separator with integrated magnet for capturing ferrous material, sizes 3/4" to 2" pipe.

Quantifiable outcome

• Eliminates routine maintenance items
• +3 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Spiro Enterprises, Inc.coreOthersSpirotherm, Inc. is a wholly owned subsidiary of Spiro Enterprises, Inc., which has been developing and manufacturing products to improve water quality in the HVAC industry for almost 40 years.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Bell & Gossett (Xylem): Industry-leading hydronic component brand owned by Xylem, offering pumps, heat exchangers, valves, and air/dirt separators. Largest incumbent in the space; competes head-to-head with Spirotherm in commercial air and dirt separation specifications.
• Spirax Sarco: Global leader in steam and thermal energy management with overlap into air/gas separation and heat transfer equipment. Comparable in industrial-scale air/dirt separation technology though oriented more toward industrial steam than commercial HVAC.
• Taco Comfort Solutions: Broad HVAC hydronic component manufacturer offering pumps, valves, heat exchangers, and air/dirt separation as part of a wider portfolio. Overlaps with Spirotherm in commercial air/dirt separation but competes across a much broader product set.
• Watts Water Technologies: Large diversified manufacturer of water and plumbing products including hydronic heating components and air/dirt separation. Much broader portfolio than Spirotherm but directly comparable in air elimination and dirt separation product categories.
• Crane Fluid Systems: Manufacturer of valves, fittings, and flow control products including HVAC hydronic accessories. Competes with Spirotherm on commercial HVAC specifications through a broader component portfolio.

Emerging players

• Griswold Controls: Manufacturer of hydronic balancing valves and related flow-control equipment. Adjacent competitor in the hydronic system specification ecosystem where Spirotherm also competes for project specifications.

Direct peers

• Caleffi: Italian-headquartered manufacturer of hydronic components including air and dirt separators, balancing valves, and heat exchanger accessories. Highly comparable to Spirotherm as a direct competitor in coalescing-type air/dirt separation for hydronic HVAC systems.
• Amtrol: US manufacturer of water system products including well tanks, hydronic accessories, and air elimination equipment. Comparable to Spirotherm's residential and light commercial hydronic air separation product lines.
• Wessels Company: US manufacturer of ASME pressure vessels, air separators, and dirt separators for HVAC and hydronic systems. Directly comparable product overlap in air and dirt separation technology for commercial hydronic applications.

Regional players

• Hayward Flow Control: Manufacturer of industrial flow control products including valves and fluid handling equipment. Adjacent peer with comparable engineering specifications for fluid handling in commercial and industrial HVAC/process applications.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCoUZKIND3KhBbuWYN0o8bXw
• LinkedInlinkedin.com/company/spirotherm-inc

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Spirotherm