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.
An Italian pump manufacturer has ordered Vesconite Hilube line shaft bushings following a successful efficiency test conducted at its pump’s Best Efficiency Point (BEP). The manufacturer incorporated Vesconite Hilube bushings into one of its submersible pump designs and tested a pump continuously for 40 hours at its most efficient operating point.
Uniwater continues to build its position in the growing European market for water infrastructure. As part of the group’s investment in the DACH region (Germany, Austria and Switzerland), Erik Meurling has been recruited as Head of Expansion.
ARI-Armaturen USA highlights the ZETRIX series of metal-seated process valves. Engineered for durability, safety, and zero-leakage performance, ZETRIX is the ideal solution for demanding service conditions involving temperature extremes, pressure swings, and severe mechanical stress.
With its innovative product generation, valve specialist GEMÜ is bringing onto the market significant innovations geared towards the requirements of modern process automation. Through LEAP, which stands for “Lean. Effective. Agile. Platformized.”, GEMÜ is presenting a range of ground-breaking products that impress due to their modular design and versatility and are based on state-of-the-art manufacturing methods.
With its application-specific seals and materials, Freudenberg Sealing Technologies enables high and sustainable yields in hydroelectric power generation.
DAB Pumps has redefined circulator performance with its redesigned Evoplus electronic wet rotor range, engineered to meet the diverse demands of heating, hot water and air conditioning systems in both residential and commercial properties. More than 800,000 Evoplus units have been installed since 2013 across 82 different countries, with its level of reliability earning it a place among the most dependable products in the market. This success has driven DAB to improve the range even further, optimising the product’s looks, usability and ruggedness.
In construction and building yards, efficiency is considered a decisive factor when selecting a dewatering pump. However, practical experience shows that those who focus exclusively on efficiency may end up paying more in the long run.
Flender announces the appointment of Tommy Rahbek Nielsen as President of its Business Segment Wind, effective September 1, 2025. Tommy Rahbek Nielsen will succeed Aarnout Kant, who will continue to spearhead strategic global projects within the company and maintain his role as General Manager Americas, reporting directly to the Group CEO.
Niklas Ruf and Jana Spiller from Germany received the prestigious Stockholm Junior Water Prize 2025 for their work on developing a scalable flood warning system for small streams. H.R.H. Crown Princess Victoria of Sweden presented the winners with their award during a ceremony at Stockholm City Hall as part of World Water Week in Stockholm.
Armstrong Industrial, the newly launched industrial division of Armstrong Fluid Technology, will offer energy efficient fluid flow and pump solutions to help customers achieve their set sustainability goals while optimising uptime and performance.
