VARIAX® Axial Flow Fans
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VARIAX Axial Flow Fans ® Continually setting new standards

The VARIAX variable pitch axial fan combines one of the highest efficiency levels available today with an exceptionally flexible, customer focused design, manufacturing and aftermarket service. ® The VARIAX® is designed and engineered by Howden Axial Fans, part of Howden’s Heavy Fans and Heaters Division, and Howden’s centre of excellence for variable pitch axial flow fan technology. For around 60 years, we have been pushing the boundaries of both quality and performance, researching both the design of VARIAX® fans and their applications. We have accumulated an enormous reservoir of...

Serving the world – the VARIAX® advantage The benefits of a global presence Howden is, in both geographical reach and culture, a global company. Every part of the organisation, in every country and across all products and markets, has access to truly international resources and world-class research and development. The experience we build in one area is applied and shared across all divisions. One of the most important advantages this brings is our ability to pass on the benefits of our global sourcing policy. With more than 3200 units sold worldwide, the VARIAX® fan is the proven, reliable...

Built on experience The principle of adjusting the pitch of the blade to govern aerodynamic performance is the proven route to optimum efficiency, enabling the fan performance to be accurately matched to its duties in real time while allowing the drive motor to run constantly at its recommended speed and power consumption. VARIAX® fans in a typical power plant arrangement Tri-sector Air-preheater The right choice for all applications VARIAX® fans are found in a wide spectrum of situations where high volumes, high pressures and precise flow control are required, and where reliability and...

Single stage All VARIAX® fans are designed to work within an operational temperature range up to 200˚C/392˚F. They are available in single and two-stage versions to suit a wide range of pressures and volumes. Guide vanes Designed for pressures of 300Pa/1 InWG to 15,000Pa/60 InWG at volumes between 25m 3 and 1600m 3 per second /50,000 ACFM and 3,400,000 ACFM. Designed for pressures 1500Pa/6 InWG to 30,000Pa/120 InWG at volumes between 15m 3 and 1600m 3 per second /32,000 ACFM and 3,400,000 ACFM. In two-stage VARIAX® fans, the inlet box is also mounted on rollers and tracks to allow access to...

Continual improvement Quality assurance VARIAX® fans meet all major industry standards, and all of the equipment we supply is backed by an absolute commitment to customer satisfaction. Our quality assurance procedures are underpinned by ISO 9001 accreditation, our environmental standards are certified to ISO 14001, and we have a health and safety programme certified to OHSAS 18001 criteria covering all VARIAX® staff. The VARIAX® fan is the subject of continual research and development, and the interchangeability of parts makes it possible to retrofit, adapt and upgrade with ease. Test...

At the heart of your operations Howden people live to improve our products and services and for over 160 years our world has revolved around our customers. This dedication means our air and gas handling equipment adds maximum value to your operations. We have innovation in our hearts and every day we focus on providing you with the best solutions for your vital operations. Howden Axial Fans ApS Howden Axial Fans GmbH Industrivej 23 DK-4700 Næstved Denmark Tel: +45 5577 6262 Fax: +45 5572 3343 Email: howdenaxialfans @howden.com ©Howden Group Limited. All rights reserved. 2017. Howden and the...