Double diaphragm pumps operate using an oscillating positive displacement principle. The pump consists of two main fluid housings and a central air control section. Inside each housing, a flexible diaphragm is mounted vertically and connected to a shared shaft. As compressed air enters and exits the air chambers, the diaphragms move in a coordinated push pull motion.
Svanehoj, an ITT company, is further expanding its expertise in gas solutions with the acquisition of Germany-based Köhler & Hörter GmbH (KOHO Kompressorsysteme, or KOHO), a family-owned company specializing in high-quality compressors for a wide range of industries, including shipbuilding. The acquisition closed on 1 October 2025.
It has previously been announced that CRI-MAN S.p.A., (“CRI-MAN”), would become part of Atlas Copco Group. This acquisition has now been finalized. Italian pump manufacturer CRI-MAN was founded in 2000 and is located in Correggio, Italy. As part of the acquisition 85 employees have joined Atlas Copco Group.
EBARA CORPORATION has launched the new model DKE anti-clog submersible wastewater pump (hereafter “the Pump”) for global markets outside Japan (50 Hz power supply regions), with sales starting in August 2025. The Pump features an anti-clog design that prevents foreign matter from blocking the impeller and helps realize high operating efficiency. Following initial release in the United States in 2023, the sales are now being expanded to Europe, China, Southeast Asia, the Middle East and other regions.
The British Pump Manufacturers Association (BPMA) is encouraging businesses and engineering professionals across all industry sectors to prioritise working with BPMA member companies when specifying or sourcing pumps and pump-related systems. Whether for manufacturing, processing, infrastructure, or utility applications, selecting the right products—and the right partners—is key to achieving safe, efficient, and sustainable operations.
KOOT, founded by an Oxford University alumnus, announced its global launch as a trusted partner and industry-first platform in the pump and motor sector, spanning engineering design, research, development, and precision manufacturing. The company also proudly revealed that it has been honoured with the European PIA Supplier Award, recognizing its outstanding contributions to engineering innovation.
Across the UK, hundreds of organisations could face emergency call-outs or even closure if their pump systems aren’t checked before winter. The UK is set to face more extreme weather before the end of the year, with plummeting temperatures, storms and heavy rainfall – conditions that can cause pumps to freeze, blockages to form and energy efficiency to drop.
The trusted EMW series of heavy-duty slurry pumps has been expanded with the introduction of two new, bigger sizes, significantly increasing the performance range of the product family.
Through the expansion of its location in Bundamba, Queensland, KSB Australia Pty Ltd is responding to the growing demand in the wastewater market. The new buildings offer a significantly larger warehouse capacity for water and waste water products, which will shorten delivery times and increase the reliability of supply for customers.
The Wilo Group has been awarded the platinum medal by EcoVadis for the fourth time in a row. The rating agency also graded the multinational water technology group’s commitment to sustainability as “outstanding” for the second time. Only 1 per cent of companies audited by EcoVadis – now numbering more than 150,000 – achieve the platinum rating.
Dravske elektrarne Maribor d.o.o. (DEM), Slovenia’s largest renewable energy producer, has awarded international technology group ANDRITZ a contract for the complete refurbishment and modernization of the Formin hydropower plant.
