Diffuser & Aeration Equipment Companies

Litree: Pioneering Ultrafiltration for a Water-Secure World Founded in 1992, Litree has dedicated 30+ years to redefining water purification through ultrafiltration (UF) membrane technology—our core expertise and passion立升（Litree）. As a global high-tech enterprise rooted in independent innovation, we’ve evolved from a membrane R&D startup to one of the world’s leading water problem solvers, with over 146 core patents and state-of-the-art manufacturing hubs in Haikou and Suzhou, China立升（Litree）. Our signature hollow fiber UF membranes are engineered to deliver unmatched performance: 0.01μm precision removes 99.99% of bacteria, viruses, and contaminants while preserving essential minerals—striking the perfect balance between purity and health立升（Litree）. This technology powers our diverse solutions, from residential whole-house systems to large-scale municipal projects and industrial wastewater treatment, all designed for sustainability and cost-efficiency. What truly sets us apart is our commitment to making safe water accessible. We’ve completed projects serving 50,000+ residents with centralized purification systems that cut construction costs and footprint by 50% compared to traditional setups—proof that advanced technology can also be affordable. Today, our solutions reach 60+ countries, supporting 3,000+ industrial clients and millions of households worldwide. At Litree, water isn’t just our business—it’s our mission. We believe every drop matters, and we’ll keep pushing boundaries to create a future where clean, safe water is a universal right, not a privilege

Founded in 2009, formerly known as Red Circle Industries (RCI), RCI Aquatech creates custom wastewater solutions based on end users’ requirements, which allow for optimally chosen components resulting in a solution that meets or exceeds customer needs. RCI Aquatech’s wastewater treatment systems combine necessary process technologies to reach required state and federal discharge limits and comply with local regulations. Our systems focus on removal of pollutants such as heavy metals, greases, suspended solids, oils, high salt content, toxic compounds, phosphates and more. Using chemical-physical treatment (coagulation, flocculation, and sedimentation), biological treatment (aerobic and anaerobic) and wet chemical oxidation (persistent or toxic organics). Our expertise comprises the following technologies:  Filtration & softening systems  Physicochemical treatment (coagulation-flocculation)  Membrane filtration (UF & RO)  Ion exchange  Chemical oxidation  Biological treatment  Zero liquid discharge (ZLD) system

Our manufacturing plant in Guangdong, China, was established in 2007 and has served various municipal equipment manufacturers in China for nearly 20 years. We have been exporting products for almost 10 years, such as MBBRs, tube settlers, and aerators. The factory is located near Shenzhen Port, making sea freight extremely convenient.

We produce a comprehensive range of spraying solutions, encompassing everything from small-scale nozzles to large industrial spraying systems. Our diverse product line includes various types of nozzles tailored to meet the specific requirements of every application and customer need. The company was established in Milan in November 1968, focusing on distributing parts and components for fire protection systems. Over time, we expanded our offerings to include a diverse range of industrial sprayers tailored to various applications. In addition to our distribution and manufacturing of fire protection system components and industrial sprayers, we specialize in designing and producing pneumatic spray nozzles for industrial use and tank washing nozzles. Our product line also encompasses a variety of complementary accessories essential for industrial washing, including filters, spray guns, and hoses. Furthermore, we offer ejectors, blower nozzles, swivel joints, and hose clamps to provide comprehensive solutions for our customers' needs. PNR Italia is part of the Tecomec Group and oversees four other affiliated companies to form PNR Company, a consolidated reality with a significant presence on the market.

Dutair by Sjerp & Jongeneel specializes in manufacturing high-performance turbo blowers, side channel blowers, and fans for pressure and vacuum applications. Serving industries like utilities and manufacturing, they provide essential components for water treatment and industrial processes across Europe.

Cadman Cranes is a leading provider of lifting solutions in the UK with over 50 years’ experience and a reputation for quality, reliability and safety. At the very forefront of sustainability within the industry, Cadman Cranes offer responsible and collaborative turn-key solutions across all industries. From depots in Colchester and Brentwood, Cadman is ideally positioned to cover the East of England and beyond, living and breathing its mission to provide safe lifting solutions to industry and communities in a collaborate, considerate and sustainable way. Cadman has always placed great importance on delivering so much more than just crane hire. Its values are focussed on the success of its clients, its people and its community, and it takes great pride in going the extra mile on every job, no matter how big or small. Cadman Cranes add value to your hard work and offer a full-service lifting solution that goes far beyond just crane hire. It doesn’t just look for customers, it looks for partnerships based on trust, quality and safety. Services include: Contract lift services: Our complete package service is ideal for those who require a fully managed lifting solution, removing your risk and liability, and ensuring that we deal with all of the ‘heavy lifting’. Crane hire services: Cadman Cranes is the leading crane rental company in the East of England, providing crane hire across London, Essex, East Anglia, and all over the UK. With cranes available 24/7, 365 days a year, we are well positioned to keep your operations moving. Tank clearance, dredging, and grab solutions: Cadman Cranes offers innovative tank clearance solutions with our custom-designed grab attachment. The remote-controlled grab, mounted to the hooks of our mobile cranes, can reach up to 60 meters and handle a variety of materials, including sewage waste, sludge, grit, mud, and sand. This service is ideal for wastewater treatment plants, sewage facilities, digester tanks, aeration tanks, ports, and any industrial sites that require regular tank cleaning, maintenance, or dredging. Specialist lifting equipment for utility installation projects: Utilising our range of specialist lifting equipment, we have assisted on some of the most complex utility installation projects throughout the East of England, solving problems currently unimaginable by other mobile crane hire companies. Our innovative Compact Crawler Cranes, in combination with our remote-controlled telescopic hydraulic grab, have proved invaluable in providing the highest level of service and crane hire to the utilities sector. If you would like to work with Cadman Cranes or are looking to add a safe and considerate crane hire solution to your list of approved suppliers, Cadman would love to hear from you.

Spaans Babcock was established in 1897 and has been supplying equipment into the water industry since this date. The company are the world’s largest supplier of Archimedes screws having thousands of screws installed throughout the UK & tens of thousands worldwide. Additionally the company supply, install and maintain aeration equipment (surface and brush aerators), screens and screenings handling equipment, a complete range of flow isolation equipment including penstocks, flap valves and stop-boards. Over recent years the company has expanded significantly with the addition of Archimedes screw generators to its product range. This is a natural progression for the product which is perfectly suited to low head applications, they offer several advantages over alternative technologies including no requirement for fine screens, fish friendliness, non-blocking and low maintenance due to the simple & robust design. The screw generator is offered in various alternative designs to suit given site circumstances. Spaans have agreements in place with many of the UK Water companies & agencies for the design, manufacture, supply, installation and maintenance of their equipment. Centrally based in Heywood, the company offers a full range of services from supply only contracts through to development of complete bespoke packages. Project management is handled by the companies own project teams and the company has its own SHE officer to ensure compliance with the stringent UK requirements. All installation and maintenance work is handled by in house teams of engineers.

Guangzhou Haike Electronics Technology Co., Ltd. is a leading manufacturer of air and water purification systems, specializing in advanced filter technology. With a strong global presence, HOKO collaborates with Fortune 500 companies, producing high-quality smart home appliances and exporting to over 100 countries.

Esmil Group / Prodeko-Elk specializes in advanced wastewater treatment solutions, offering a range of equipment and technologies for various industries. With a focus on efficient and economical dewatering, they provide comprehensive systems for sludge treatment, membrane technologies, and aeration systems across Europe and Asia-Pacific.

Over three decades, Pollet Water Group has been thinking water. It’s our mission to improve the quality of life, the comfort of doing business and the efficiency of industrial processes through a network of specialized water treatment companies.

Established in 1870, AE Yates is a progressive civil engineering contractor with an enviable track record of successfully delivering technically demanding high quality works to the complete satisfaction of a wide variety of public and private customers. An Integrated Construction Company A E Yates has grown to be an integrated construction company with a turnover of £50m, employing over 170 managerial, professional, technical and operational staff. Our company headquarters, based in Bolton, are strategically located to serve and communicate with clients throughout the United Kingdom with immediate access to road, rail and air transport facilities. We also have an operating base in Sheffield. AE Yates Group The group companies add value for customers not just in their specialism. When working together they can offer an integrated service through resource sharing and joint management of activities. Operational interfaces are removed eliminating potential co-ordination, management and programming issues for customers. AE Yates Civil Engineering Ltd AE Yates Directional Drilling Combined Soil Stabilisation Side Grip Piling SPI Piling Tritech Ground Engineering AE Yates Haulage Equipment and Skills Investment in the development of highly skilled operational teams up to date equipment has reinforced and enhanced our capability in all areas of operations. We own and operate an extensive fleet of general civil engineering and specialist plant and equipment. Experienced and Dedicated We are a highly experienced and respected civil engineering contractor operating to an Integrated Management System which is fully accredited to IS 9001:2015, ISO14001:2015 and ISO45001:2018 by BSI. We are fully committed to meeting the required standards of quality, customer care, environmental awareness, safety, health, time and cost demanded by our clients. We are fully supportive of the UK industry’s drive towards Continuous Improvement, Best Value and Constructing Excellence.

Established in 1864, Aerzen are an International market leader supplying Roots type blowers, screw blowers, screw compressors and Turbo blowers for water and waste water applications. Aerzen have extensive experience in aeration, RGF filter scour and digester/landfill gas positive displacement to the Water Industry. To this end they currently hold Supply Frameworks with many UK Water providers and have supplied all other UK and Irish Water Companies over many years.

Air Technology Systems (ATS) have been designing and supplying ventilation and odour control solutions to the water industry for over 20 years. Working closely with the main contractors/M&E Contractors in the industry, we have installed our systems into all major water companies. Our Range of services include: Surveys of existing ventilation and odour control systems. Upgrades, maintenance and modification of existing systems. The design, supply, installation and commissioning of new ventilation and odour control systems. We have our own experienced installation teams. We have our own NIC EIC registered electrical engineers. We work collaboratively with the client to ensure that the system design is optimised and meets the primary objectives e.g TOTEX, Level of performance etc. VENTILATION Our ventilation solutions are a combination of traditional and propriety techniques, including our innovative JETFLO system which maximises the ventilation efficiency and can reduce the overall extract volume, excellent for reducing condensation and ensuring fresh air is delivered where needed, this not only reduces energy consumption, but can reduce the size and cost of odour control units. ODOUR CONTROL Our unique alliance with Europe’s largest manufacturers of specialist odour control products, CMI Europe Environment, is a major strength. We can offer all proven odour control technologies, from carbon filtration and catalytic dry scrubbers, through to bio filtration and chemical scrubbing. Solutions often require a combination of these techniques. All equipment on the odour control plinth is sourced from CMI EE’s state of the art facility and is pre-assembled for inspection prior to dispatch. This provides us with a unique level of quality control. Our specialist rope access division allows us to gain access to places where mechanical scaffold/access is going to be either very difficult or cost prohibitive. Our wide range of expertise design and project management experience, combined with close collaboration with the client is the reason we have an excellent reputation in the industry.

Founded in 1987 Alpha Plus Limited have been providing quality pipework, fabrication and installation of pipework, structures and mechanical plant for the utility, waste management, industrial / commercial and manufacturing sectors. Alpha Plus is committed to providing clients with innovative, cost effective, high quality solutions. We work closely with clients providing design, fabrication and installation to a high quality using approved standards and up to date technologies. We provide a wide range of services with a wealth of experience in the following areas: Pipework. Installation. Structural. Design and project management. Site Maintenance. Alpha Plus has successfully completed numerous contracts, varying in size from £10,000 to £3M+ , usually as lead mechanical installer of varying values in the following areas. Potable Water The installation of new and refurbishment of existing filters (RGF, DAF, GAC & RO), chemical dosing equipment and LP Block/Leopold flooring. Works include manufacture and installation of: Filter internals. Aeration and process pipework. Access steelwork. Launders. Weir plates. Installation of pumps, blowers and associated mechanical packages, trough plates, media and penstocks. Wastewater Installation of various designs of deep beds filters, submerged aeration filters, sequencing batch reactors, digesters, activated sludge plant, tertiary filters, centrifuges, screens, classifiers. Works include manufacture and installation of: Filter internals. Aeration and process pipework. Access steelwork. Launders. Weir plates. Installation of pumps, blowers and associated mechanical packages, trough plates, media and penstocks. Waste to Energy/Power Generation Installation of biogas CHP systems, waste incineration plants, electrostatic precipitator installations, gas scrubber installations, digester heating/circulation and internals. Works include manufacture and installation of: High pressure super heated/saturated and low pressure steam. Natural gas. Fuel oil. Compressed/instrument air. Chemical dosing pipework. Access and support structures. Pipe bridges. Large bore ducting up to 2000mm (mild steel and stainless). Ash transfer systems. GRP acid/alkaline pipework. Installation of pumps, driers, scrubber vessels, tanks and associated mechanical packages.

Based in Clevedon, near Bristol, North Somerset, AUMA Actuators Limited is the UK subsidiary of the global AUMA Reister GmbH and Co., the world’s largest manufacturer of electric valve actuators, operating on every continent, with 2,300 employees in 30 locations. AUMA Actuators Limited is the UK arm of global manufacturer AUMA Reister GmbH, manufacturing daily over 500 electric actuators for valves, penstocks and dampers. A trusted supplier to the UK water and wastewater industry, AUMA holds supply and maintenance frameworks with all major UK water companies. With a UK-based team of experts and a £2.5 million inventory held locally, AUMA ensures rapid response and fast-track call-off for urgent project requirements. AUMA provides electric actuators – including variable speed, explosion-proof and underwater variants – plus gearboxes for flow control across water and wastewater networks, backed by comprehensive service, maintenance, and support tailored to the specific needs of the UK water sector. Key Products • SQ and SA part and multi-turn actuators for Class A and B operation, torques from 10 Nm to 32,000 Nm extendable to 675,000 Nm with optional gearboxes. • SQR and SAR modulating actuators provide Class C control up to 1500 starts/hr. Torques from 15 Nm to 2,400 Nm depending on model chosen. • SQV and SAV variable speed actuators provide accurate close control of valve position and flow rate, with soft-open and soft-close ability that protect ageing assets while retaining speed of operation and emergency functions. Tripping torques from 10 Nm to 1000 Nm. Modulating versions SQRV and SARV are also available • Profox – compact actuators for part- and multi-turn applications – easy to set up, reliable and tough, for torque ranges up to 600 Nm (part turn) and 100 Nm (multi-turn) For explosive atmospheres, AUMA actuators are available with full ATEX certification. Please ask us for details. AUMA equipment is built for the digital world. Full Fieldbus integration, the ability to integrate and consolidate other plant signals and bidirectional control makes AUMA an ideal project partner, while the modular approach and versatile configuration of AUMA equipment makes it ideal when you are considering automation of existing assets.

Bramley Engineering ltd was established in Ivinghoe in 1981 by John & Davina Bramley following John’s apprenticeship and early career in South Africa. Now based in Leighton Buzzard and run since 2007 by Graham and Emma Bramley the company remains a family run business encompassing a hardworking, fun, and fair working ethos that benefits our customers, suppliers, and staff. Over the last 40 years the company has evolved to ensure it meets health and safety requirements, is up to date with legislation and has safe working practices. We became ISO registered in 2004 following a large project for the nuclear power sector, we have continued to develop our systems as demands and in-house practices have required it. Bramley Engineering manufactures many forms of lifting equipment including overhead cranes, gantries, monorails, jib cranes and davits. We specialise in bespoke lifting solutions and have over the years provided solutions for many varied situations. Using the latest in CAD technology Graham continues to improve and adapt his knowledge to the needs of the customer. Our customers are many and varied and include the water industry for whom we have been working for twenty-five years, construction companies both large and small and the rail sector. In 2018 we won a contract to provide a grid system of 18 cranes in Lincoln for Siemens rail, this project saw us win our first award for ‘working as one’ with the customer. This award was greatly appreciated as not only did it show the customers appreciation it reminded us that our working practices and ethos are in line with ‘lifting your expectations’. We are members of the Lifting Equipment Engineers Association (LEEA) whose knowledge and expertise are always on hand should we require assistance. They audit us annually and ensure we are up to date with latest legislation and that our working practices meet the needs of our customers. As well as the cranes and lifting solutions we provide LOLER examinations and sell all ‘below the hook’ lifting accessories. We have an online system that keeps records of all the equipment we have examined. Our customers can always have access to their certificates ensuring they are compliant with health and safety requirements. We hold stock of web and round slings, shackles and chain slings and welcome customers to visit our premises to discuss their needs. Bramley Engineering always welcome new and exciting challenges with both existing and new customers.  We relish the chance to expand our bespoke lifting portfolio and to use our extensive knowledge and innovative outlook to help others find their perfect lifting solution.  We are always striving to lift expectations.

Carlow Concrete is a market leader in water retaining precast concrete structures in both the United Kingdom and Ireland. Production at our state of the art plant in the South East of Ireland is carried out using the most modern and innovative methods and equipment, for the quality production of our products ensuring the highest standards of quality and specification compliance are achieved every time. As part of the Burren Precast Concrete Group, the company has the resources and infrastructure to meet the high demands of our customers in relation to quality of service and product. Our organisation benefits from a team with combined expertise of over 100 years in the precast industry. The company has the technical expertise, the flexibility in production methods and the resources to Interpret, Design, Manufacture and Assemble to the highest standards to meet the requirements of its customers, bringing modern methods of construction through the benefits of off-site construction, building information modelling (BIM) and highly experienced installation teams. Our expansive range of products are devised specifically for both water and wastewater projects and are unrivaled in terms of design, quality and ease of installation. Our solutions offer international, national and customer specification compliances and meet all water companies’ asset standards throughout the UK & Ireland. Site installations typically achieve 25% to 50% reduction in programme with fewer people and plant requirements, meaning substantial savings to both preliminary and direct costs. Stormwater attenuation. Flood alleviation. Service reservoirs. Precast filter bed wall and tile system. Activated sludge plant. Final/primary settlement tanks. Retaining walls.

With over 35 years experience and knowledge of manufacturing variable speed electrical control systems, Drive Systems Ltd provide fixed and variable speed drives, control panels and will commission and install both the mechanical equipment and electrical supplies, as required. Drive Systems Limited is a wholly owned independent company founded in 1986 by its present directors to promote the use of packaged inverter drive systems into a wide range of industrial applications so that they could benefit from the flexibility of control and the large potential energy savings that this, then, emerging new technology could provide. Many areas of industry, from pet food manufacturers to woodworking machine makers and from the nuclear industry to the water companies became valued customers and benefited from bespoke packaged drive systems tailored to their specific application. The water companies soon became the source of the majority of the companies workload, with inverter based drive systems being developed for wet well submersible pump systems, rectangular bacteria bed distributors (both rope hauled and independently driven) and for circular filter bed distributor drives. This latter drive system, enjoying patent protection of its principles of operation, has been a huge success and over 2000 systems have been supplied into all of the UK`s Water Companies, as well as to numerous overseas locations. Drive Systems has recognised the need, not only to provide products and packaged control systems, but also to provide an installation and commissioning service which ensures optimised performance from the existing plant. Drive Systems site programme includes installation of both mechanical and electrical equipment on prepared foundations. The service is not complete without the inter connection of all items of equipment, including cables, cable trays and ducts, as required. Lighting, heating, ventilation are a natural extension of this work. Drive Systems can provide Fixed and variable speed drives for pumps and fans Control panels and cabinets designed for specific applications Percolating circular filter bed drives and control Percolating rectangular filter bed drives and control Complete installation both mechanical: cabling and electrical supplies Commissioning and test Servicing and repairs

ELIQUO HYDROK works with all major UK and Ireland water companies, providing practical water engineering solutions. As a specialist engineering firm with head office in Indian Queens, ELIQUO HYDROK operates at the forefront of innovative and sustainable water treatment technologies. We support the entire UK water sector, supplying every water company. Part of ELIQUO WATER GROUP, the extensive portfolio includes solutions for wastewater management, wastewater treatment, clean water treatment and surface water management; Mecana PCMF, aeration technologies, CSO screens, flow controls, storm tank flushing and Raw Water Intake Screens. Plus, a sludge treatment portfolio that helps reduce costs, improve efficiency, and meet environmental compliance requirements – through systems like ELOVAC® for vacuum degassing, and other integrated technologies in biogas, digestion, dewatering and drying. With established teams in Cornwall, Wolverhampton and Wombwell, ELIQUO HYDROK are well-equipped to support operations – from start to finish; with design, manufacture, management and install capabilities – across the UK and Ireland. This wealth of in-house expertise is backed by a forward-thinking mindset to help customers achieve their long-term goals sustainably; to deliver results in AMP 8 and beyond.