PF Variable Pitch Axial Fans
12Pages

PF Variable Pitch Axial Fans Ultra-robust technology for durable, controllable performance

The outstanding aerodynamic performance of Howden PF fans has been developed by listening to customer needs, and proven in the most demanding applications. Howden Axial Fans is a global centre of excellence for the development, design and engineering of variable pitch axial fans. We have been at the forefront of the technology since the earliest days of its development, and we continue to lead the world in raising energy efficiency, improving reliability and reducing lifetime costs for our customers. A world-leading supplier of air and gas handling technology of all types, Howden was...

Reduced energy demands bring reduced operating costs and environmental advantages The Howden PF range of single and twostage adjustable pitch axial fans provides exceptional energy efficiency across a wide operating range. By using an integrated hydraulic control system to vary the blade angle while the fan is in normal operation, performance can be instantly matched to changing demands while the fan is running at a constant speed for maximum economy. Featuring a compact design that offers exceptionally fast, straightforward on-site installation, PF fans are easy to maintain, and offer...

Worldwide presence, worldwide service More than 600 Howden PF fans are already providing reliable, efficient service in applications throughout the world, each one designed to meet a unique set of circumstances and demands. North America Brussels Chesterfield Glasgow/Renfrew Belfast Kingwinsford Lille Paris/Nogent & Massy Nantes Winnipeg Montreal Medina Espoo Växjö Chalon & Meyzieu Vitrolles Madrid Cartagena Buffalo Plymouth Meeting Coswig Prague Budapest Heidenheim Nancy Hengelo & Rheden Mexico City South America 2 installations Rio de Janeiro São Paulo Santiago Port Elizabeth Map key...

We have supplied high-speed PF fans with a tip speed of 195 metres per second. We have installed fans with impeller diameters up to 4500mm. Some fans are running continually in ambient temperatures of up to 200°C and we have, where necessary, provided the capability of unimpaired operation in temperatures as high as 400°C. Howden’s global presence and wide experience brings enormous benefits. It means that every customer, in every part of the world, has access to state-of-the-art knowledge backed by leading edge research and development. A field engineer in any location has instant access...

Custom designed for precision performance Every PF fan is individually designed to provide the best aerodynamic performance across the operating range defined by the customer. We can draw on a wide choice of impeller diameters, hub sizes and drive speeds to provide the optimum configuration for the defined duty spectrum. BOILER PF fans in a typical power plant arrangement ECO Whatever the size or specification, each fan we deliver is a state-of-the-art machine that incorporates the most recent technology into a unique, compact and outstandingly reliable unit. Ammonia injection SCR...

Stringent quality control is the key to extended, problem-free operation We use a thorough and meticulous quality control system to ensure that every fan complies with every detail of the customer’s specification. Each individual component is comprehensively checked before assembly, and the completed fan is methodically spin tested throughout the full range of blade angles. Significantly, we use a weld-free construction for the rotor, removing any risk of weld cracks and thus any need for time-consuming weld inspection either at the construction stage or during the life of the fan. Our...

Every detail is the product of our constant search for perfection At Howden, continuous improvement is our way of life. From fundamental aerodynamic principles to the high-quality finishing of our fans, we are striving to always deliver better, more robust and more efficient equipment. From selecting materials to transporting and installing the finished product, we check and double-check every detail. We know that we can only stay ahead of our competitors by continuing to lead in technology, quality and service. Simple maintenance and servicing Howden PF fans are designed to give long term...

Highly accurate hydraulic control Blade pitch in the PF fans is controlled by a hydraulic cylinder built into the impeller hub, providing instantaneous movement in response to the input signal from the control unit. The signal initiates movement in a double-acting servo valve that governs the movement of the cylinder, and that movement repositions the blades from their initial position to the required angle. The new position of the blades is then transmitted back to the control system by a feedback loop, so that the system has a built-in monitoring capability that removes any possibility of...

With every fan, we deliver a lifetime commitment Customer service is at the heart of all our work. While we are happy to build a custom-designed PF fan to a given specification and ship it for installation by third party engineers, we prefer to offer advice throughout the process. Because application engineering is central to our operations and our expertise, we can usually provide valuable insight into the most effective and efficient design by considering the fan within the context of its circumstances as well as its duties. Factors like the ambient temperature range, air quality,...

Hydraulic cylinder Blade cone Blade shaft Rotating union

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 AB 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 Habsburger Straße 7 DE-73432 Aalen-Ebnat...