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Howden - Axial Fans

ALPHAIR Jetstream AMF Series American Fans AXICENT Variable Pitch AXICO ANTI-STALL® Axipal® BZi® Garden City Fans Howden Donkin Fans Tunnel and Jet Fans Jetstream AX PF Fans Wind Tunnel Fans Mining Fans Tellus Fans Turbowerke VAN Series UMAF Fans VARIAX® Fans

ALPHAIR Jetstream AMF Series

Axial Fans

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ALPHAIR Jetstream AMF Series fans
Heavy-duty axial fans for main mine ventilation

These robust adjustable-pitch fans deliver up to 1 million cfm against 14 inches of total pressure.

Howden provides aftermarket services for ALPHAIR Jetstream AMF Series fans, including maintenance and repair services and consulting services to assist customers in optimizing the performance of ALPHAIR Jetstream AMF Series fans.

Key Features
  • Sizes from 76-1/2″ to 148″
  • Highly reliable and efficient
  • Easy to maintain
  • Economical price
Standard Features
  • Structural
    • ASTM A36 steel all-welded construction
    • Structural steel bracing, stitch welded to housing
    • Bolted and gasketed splits for removal of wheel and shaft assembly on horizontally installed units and splits for field welding, as required for shipment
    • Designed to meet strict vibration requirements
    • Vertical and horizontal installations
  • Shaft
    • C 1045 alloy steel shaft
    • Designed for a minimum first critical speed ratio of 1.25

American Fans

Axial Fans

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American Fans
Howden American Fan Company Axial Fans are the end product of many years of fan development

They encompass design features derived from experience, techniques borrowed from Airbus design, computer simulation, and customer input. Axial fans are available in both direct drive and belt drive

American Fan axials start with the MXP range which offers a maximum of 60,000 cfm, up to the JM range which goes up to 425,000 cfm.

AXICENT Variable Pitch Axial Fans

Axial Fans

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AXICENT Variable Pitch Axial Fans
AXICENT Variable Pitch Axial Fans provide higher pressures and volumes

Available with or without guide vanes, contra-rotating, and as truly reversible fans that provide the same flow in both the forward and reverse directions.

AXICO ANTI-STALL®

Axial Fans

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Manufacturer's Site
AXICO ANTI-STALL® fans
The only controllable pitch axial fan designed to totally eliminate stall, system surging, and increased noise levels

AXICO ANTI-STALL® fans improve on all these issues routinely encountered by normal controllable pitch axial fans under unstable conditions.

Air handling units with AXICO ANTI-STALL® fans are used principally in hospitals, offices, hotels, exhibition halls, sports arenas, shopping centers, and similar buildings.

Axipal® BZi® Axial Flow Fans

Axial Fans

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Manufacturer's Site
Axipal® BZi Axial Flow Fans
The Axipal® BZi is a range of aerofoil axial flow fans with an adjustable pitch angle blade

Their low- and medium-pressure performance makes Axipal® BZi suitable for all air movement applications with clean, dusty, or humid air at temperatures from -20 °C to 200 °C.

Garden City Fans

Axial Fans

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Manufacturer's Site
Garden City Fans
Garden City fans and blowers: Precise air management for the world’s most demanding applications

Howden has refined its Garden City range of high-temperature fans and high-temperature blowers over 130 years to become the standard by which other fans are measured.

Howden has engineered Garden City products for the world’s most extreme heat and corrosive, demanding operating environments. The diverse range of fans and blowers excels in extreme temperatures up to 2000 °F.

Howden has a large selection of high-temperature Garden City fans and can, in most cases, match a customer’s requirements from their existing product base. For applications in which the current product line is unsuitable, Howden has a team of skilled engineers who will custom design a fan to meet the exact specifications.

Accessories
  • OSHA-approved shaft, coupling, and belt drives
  • Damper and inlet control vanes
  • Inspection doors
  • Drains
  • Special seals
  • Actuators
  • Temperature sensors
  • Vibration sensors
  • Bearing lubrication systems
Custom Features
  • ​Insulated or uninsulated housing
  • ​Scroll or diffuser-type housing
  • ​Air- or water-cooled shaft
  • ​Plug units or scroll housing
  • ​Gastight and limited leakage designs
  • Customized diffuser housing designs
  • Complete fan package (fan, motor, and v-belt drive)
  • Direct drive

Howden Donkin Fans

Axial Fans

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Manufacturer's Site
Howden Donkin Fans
Howden Donkin long-cased axial flow fans perform under the toughest conditions

With airflow ranging from 980 to 5,750 cmh, there’s a Donkin HCT fan to suit your needs.

Howden also offers the Majax-2, Maxflo Majax BIF, and Vanax-cased axial flow fans, as well as the Majax-2 belt-driven fan.

Tunnel and Jet Axial Fans

Axial Fans

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Tunnel and Jet Fans
State-of-the-art, highly efficient fans

This range provides economy, low sound, and excellent reliability, as well as precision-engineered high performance.

Jetstream AX Axial Fans

Axial Fans

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Manufacturer's Site
Jetstream AX Axial Fans
The JetStream AX not only improves personnel working conditions underground but also expands available working places with improved airflow management.

Efficiencies of over 85% are achievable. The range of fans varies from 762mm to 1600mm in diameter. These sizes align with standard ventilation duct sizes employed in underground mines around the world.

Nonstandard fan sizes are available on request. Numerous duty combinations are available, with the ability for multi-stage configurations to achieve higher pressures.

The impeller design allows for a varying number of blades and blade angles. The impellers are dynamically balanced and fit directly onto the motor shafts.

Downstream guide vanes with full inner fairing tube and tail cone are incorporated in each fan to ensure maximum static pressure regain.

Features and Benefits:

Fan Design

The aerofoil blade design gives optimum fan performance with lower power consumption.

Full inner fairing and tail cone

A full inner fairing and tail cone in the fan casing reduces shock losses after passing through impeller and stator vanes, thus maximizing efficiency and reducing noise. For multi-stage operation, an inner fairing spacer is fitted between the stages that allows high-efficiency operation.

Large performance envelope

Adjustable pitch aerofoil blades maximize operational envelope and give reliable high-efficiency aerodynamic performance across a wide range. Blade angles are adjustable on standstill.

Flexible modular design

Modular design for each fan size gives commonality of parts and flexibility on the arrangement, components, and number of stages, thus allowing customization if needed.

Anti-stall chamber add-on option

The anti-stall chamber allows for continued safe operation during transient high-pressure events, offering a risk-free process in parallel fan arrangements. This creates a continuously rising pressure characteristic that provides high-pressure capability with a significantly increased operational range. This feature prevents fan stall whilst pressurizing flexible ventilation ducting.

PF Fans

Axial Fans

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Manufacturer's Site
PF Fans
The PF fan is a fully custom-made design to order specifications

It can be done as a single-stage fan (PFS range) with one axial impeller or a two-stage fan (PFT range) with two axial impellers. It can be either controlled via its precise and step-less hydraulic blade pitch control system with low hysteresis or using a Variable Frequency Drive with a fixed pitch PF fan.

Wind Tunnel Fans

Axial Fans

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Manufacturer's Site
Wind Tunnel Fans

Wide range of fans for Aero-Acoustic Wind Tunnels (AAWT), Acoustic Wind Tunnels (AWT), Climatic Wind Tunnels (CWT) and high altitude wind tunnel applications.

Mining Fans

Axial Fans

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Manufacturer's Site
Mining Fans
A unique design for all mine ventilation applications both in coal mines and hard rock mines

Howden can design these fans for reverse operation by counter rotation or by blade pitch regulation, and to conform to ATEX standards.

Tellus Fans

Axial Fans

For More Information:
Manufacturer's Site
Tellus Fans
A uniquely designed axial fan providing operating economy, low sound power levels, and reliability

When reliability and adaptability are paramount, the Tellus fan is the preferred choice for the most demanding environments. The Tellus fan range is configurable as an adjustable pitch axial fan upon request.

Turbowerke VAN Series

Axial Fans

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Manufacturer's Site
Turbowerke Van Series
High-efficiency standard-design axial fans

Delivering volume flow of up to 400 cms. Models are available with either fixed or adjustable blades.

UMAF Fans

Axial Fans

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Manufacturer's Site
UMAF Fans
High-efficiency standard-design axial fans

Delivering volume flow of up to 400 cms. Models are available with either fixed or adjustable blades.

VARIAX® Fans

Axial Fans

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Manufacturer's Site
Variax® Fans
Axial flow fans for the power industry

Designed for situations where high volume, high pressure and precise flow control are required. They include Primary Air (PA fans), Forced Draught (FD fans), and Induced Draught (ID fans) positions and as Booster Fans in FGD and SCR boiler applications.

By facilitating blade angle adjustment during operation, the fan is more efficient and can more accurately match the required duties. The result is cost savings, energy savings, and increased lifespan for attached equipment.

Custom-built to match your requirements and with an install base of more than 3200 units, the Variax range is a reliable and proven choice across many applications.

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                      Jim Lubratt

                      President & Chief Executive Officer

                      Jim Lubratt has been president of SVL since 2006. He first joined the company as a sales engineer in 1992 and was made a partner in 2000. He holds a Bachelor of Science in mechanical engineering from Southern Methodist University and first entered the HVAC industry as a marketing engineer for a heat pump manufacturer in Texas.

                      In addition to his role at SVL, Jim is vice president of AQC Industries, LLC, a manufacturer of specialized underground ductwork systems. He is also an investor and board member for Hydromx, Inc., a manufacturer of heat transfer nanofluids, and Crotega, Inc., creators of personal and building security solutions.

                      Jim and his wife, Tracy, met in college and married in 1993. They have three children, two of whom have graduated college in Texas, while their youngest is attending Grand Canyon University in Arizona.

                      Outside of work, Jim places a priority on his faith, family, friends, and fitness. He enjoys helping people-supporting charities, time with his wife and kids, road-biking with friends and efforts to stay physically fit.

                      A message from Jim on the achievements of SVL

                      SVL started in February 1967 by Charlie Schwab and Craig Vollhaber. Schwab-Vollhaber, Inc. (as it was named at the time) steadily grew and, in 1985, welcomed Paul Lubratt as another partner, becoming Schwab-Vollhaber-Lubratt, Inc. SVL’s founders had the determination to build the most talented, customer-focused HVAC representative in the Midwest. Our original drive and passion still shape the company and culture to this day. The achievements of an organization are the results of the combined efforts of every individual. From humble beginnings, SVL founders paved the way to industry success with hard work and determination. “Today, SVL is strongly organized with great people to lead our industry forward as we are challenged with fast-paced changes to reduce our environmental impact,” says Jim. Now, 55+ years later, SVL is under the leadership of two new principals who share the same vision and drive that has propelled SVL throughout the years. Built on a foundation of integrity, Jim Lubratt, and Charlie Vollhaber strive to ensure opportunities for personal growth, improved work environment, and shared life enrichment. The achievements of our organization are the results of the combined efforts of every individual.

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                      Charlie Vollhaber

                      Executive Vice President & Officer

                      Charlie Vollhaber is a third-generation employee at SVL, as a grandson of company co-founder Craig Vollhaber and son of former CEO Todd Vollhaber. Charlie holds a Bachelor of Science in mechanical engineering and an MBA, both from the University of Minnesota. He became an outside salesman for SVL in 2013, was made a partner in 2019, and then executive vice president and officer in 2022.

                      He grew up playing sports, including football, basketball, golf, and track, and enjoys the competitive nature of the HVAC industry. “I like that no two days are ever the same as there are always questions to answer and problems to solve,” he says. “Most of all, I enjoy working with great people and coordinating together on challenging projects to achieve positive results together.”

                      Outside of work, Charlie enjoys spending time with his wife, Lesley, and their three boys. He’s also fond of golfing, traveling, and attending concerts and sporting events. One of his favorite quotes is from the book of Philippians: “Do nothing from selfish ambition or conceit, but in humility count other more significant than yourselves. Let each of you look not only to his own interests, but also to the interests of others.” Because HVAC and construction is such a team effort, he says, “this mindset helps to create positive results in a vast majority of situations.”

                      A message from Charlie on the culture of SVL

                      “At SVL, we strive to cultivate a unique culture that revolves around finding and empowering exceptional individuals. We believe in equipping our team members with the right tools and resources to succeed.

                      As we’ve grown the business, we have deliberately maintained a small firm culture, fostering an environment where collaboration thrives. We encourage open dialogue and promote a sense of comfort among our employees, allowing anyone to ask questions and seek guidance from anyone else, regardless of their level within the organization.

                      We foster a workshop-like atmosphere where everyone’s contribution is valued. Presenting your work to another individual or a group of teammates provides a platform for collaboration, where ideas are shared, dissected, and improved collectively. We firmly believe in the power of mentoring and provide various avenues for both formal and informal guidance. Whether it’s through structured training programs or casual conversations, we encourage team members to discuss a wide range of topics, from work-related successes or issues to everyday personal life topics.

                      In summary, our culture is built on the foundation of attracting exceptional individuals, empowering them with the necessary tools, and fostering a collaborative environment where mentorship and growth thrive. We are committed to creating an atmosphere where every team member feels supported, valued, and encouraged to reach their fullest potential.”

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                      Al Gramse

                      Vice President of SVL Service Corporation

                      Al Gramse has been in the HVAC industry for over 30 years. He began as a service technician.  Then over his career worked in technical support, building automation, then service manager prior to his current role.

                      How did Al end up in the HVAC industry?  “After high school, I took a couple years to figure out what I wanted to do.   Where I was working at the time, a grumpy old coworker, who I didn’t get along with, walked up to me and said ‘What are you doing here?  Go back to school.’”  I said, “For what?”  He said “There’s a tech school down the street.  Go down there and pick something that interests you”. Then he walked away.  That weird interaction, with someone I didn’t get along with, sent me down a 30-year path in the HVAC industry.   Never underestimate the potential of a little encouragement.   Even if it is from a strange source.

                      Al has been with SVL for 15 years and is the head of our SVL Service division. “The people here are some of the best in the industry,” Al says. “A bunch of team-oriented, knowledgeable, go-getters.” His personal mantra is “figure it out,” “Do a little fact-finding on your own. Use your own brain before you use someone else’s. But know when to ask for help.” he prescribes. “It’s amazing what you can accomplish on your own if you dig in a little bit.”

                      Outside of work, Al has lots of outdoor hobbies, including hunting, fishing, and motorcycling, though his favorite pastime is simply hanging out with family.

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                      Jennifer Roach

                      Director of Marketing, Events & Administration

                      More than just a creative director, Jen brings 30 years of marketing and leadership magic to SVL. Her journey began in the trenches of graphic design, quickly evolving into crafting eye-catching campaigns for iconic brands like Target, Gabberts, Gander Mountain and Camping World. As a seasoned director and agency veteran, she honed her skills with recreational vehicle giant Parts Unlimited before leading creative teams at HOM Furniture and, ultimately, landing at SVL during a crucial growth phase.

                      Jen thrives on "servant-leadership," empowering her team and fostering a culture of trust and mutual respect. "It unlocks their potential, fuels creativity, and leads to work we're all proud of," she says. "I want my team to care, collaborate, and push boundaries together."

                      When not shaping impactful campaigns, Jen enjoys weekend adventures with her husband, Scott, and son, Crew. Their lives are a tapestry of shared passions, from bike rides and baking experiments to cheering on Simley High School wrestlers. And with her recently built forever home in Cottage Grove, her free time now includes a new, thrilling chapter: weekend renovation warrior!

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                      Mike Ruff

                      Vice President of Information Technology

                      Mike Ruff, the Vice President of Information Technology at SVL Inc., is a seasoned professional with an impressive 24-year tenure in the IT industry. His journey in the field is marked by extensive experience and expertise in various domains, including serving as a Cloud Architect focusing on Azure Software as a Service (SaaS), Infrastructure as a Service (IaaS), and both B2B and B2C solutions. Mike’s skills extend to being a Security Architect, where he has honed his knowledge in safeguarding digital assets, and he is also proficient in the Microsoft 365 stack, virtualization, routing, switching, and wireless technologies.

                      Beyond his professional roles, Mike is deeply passionate about technology in all its forms, which is evident in his career and personal hobbies. His love for technology is not just limited to his work but also spills over into his leisure activities. In the summertime, Mike enjoys the thrill of riding his motorcycle, embracing the freedom and adventure it brings. When winter arrives, he switches gears to snowboarding, seeking the excitement and challenge of the snowy slopes. These hobbies reflect Mike’s dynamic personality and continuous pursuit of technically engaging and physically exhilarating activities.

                      Mike Ruff's blend of professional expertise and personal passions make him a unique and valuable asset to SVL Inc., embodying a perfect synergy of technical acumen and a zest for life's adventurous aspects.

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