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.
The Hydraulic Institute (HI), the largest association of pump manufacturers and suppliers to the pump industry in North America, and the global authority on pumps and pumping systems, installed new leadership during the 2026 Annual Conference in Ponte Vedra Beach, FL who will guide the organization through 2029.
The latest data from the UK water industry’s most ambitious chemical monitoring programme suggests targeted policy, collaborative science, and source control can successfully tackle forever chemicals. UK Water Industry Research (UKWIR)’s Chemical Investigations Programme (CIP) represents the UK water industry’s most comprehensive scientific response to tackling chemical substances in the water environment.
Trial of an innovative phosphorus removal technology at a Sussex wastewater treatment plant (WwTP) has led to the purchase of two Flocell XFM20 filtration units by UK utility Southern Water. Wastewater treatment specialist WCS Environmental Engineering (WCSEE), now Marlowe Environmental Services (MES), initially hired out the equipment for use at Storrington WwTP in June 2025. Following a successful trial period, Southern Water took the decision to approve the units for permanent ongoing use.
Parker Hannifin, the global leader in motion and control technologies, is introducing the latest generation of its long-proven DFplus valves with an IO-Link Class B interface, expanding the existing IO-Link Class A offering.
In March, the pump and valve manufacturer KSB received a major order worth more than 150 million euros. Over the next few years, the company’s Energy division will produce and deliver eight main reactor coolant pumps for a nuclear power plant in Eastern Europe.
Amarinth has successfully completed the manufacture and delivery of a £1.5 million order for four bespoke API 675 chemical injection skid packages destined for Nigeria’s Soku and Gbaran LNG fields, located in the Niger Delta.
Water pumps on construction sites, in landscaping, municipal operations and at fire stations are usually powered by mains connections or generators with combustion engines. However, due to the increasing focus on emissions, noise protection and greater flexibility, mobile battery storage systems are now coming into focus as an alternative, especially as technical advances have been made in this area.
The Wilo Group establishes the Global WATER AI Academy. With this initiative, the water technology group connects science and industry worldwide and promotes applied science and innovation as well as cooperation in the fields of water and AI across industry and national borders.
With its EtaSeco type series KSB is presenting a new generation of hermetically sealed canned motor pumps that unite the highest reliability with a long service life. The pump sets have been specially developed for exacting applications in which a fail-safe, low-noise and completely leak-free operation is crucial.
Securing reliable groundwater is a growing priority for communities and industries in South Korea, especially in regions where demand for domestic and agricultural supply continues to rise. In Yeosu, known for its mountainous terrain and hard rock layers, local waterwell specialist Yeosu Jonghap Jihasu faced increasing pressure to drill deeper wells efficiently.
