Water and wastewater treatment facilities operate in some of the most demanding fluid transfer environments. Pumps are required to handle clean water, wastewater, sludge, slurry, chemical additives, abrasive particles, corrosive liquids, and high-solid-content fluids while maintaining continuous operation. Selecting the right pumping technology directly affects plant efficiency, operating costs, and long-term reliability.
An Air Operated Double Diaphragm Pump (AODD Pump) has become one of the most widely used pumping solutions in municipal water treatment plants, industrial wastewater facilities, desalination plants, mining operations, and environmental engineering projects. Unlike conventional centrifugal pumps, AODD pumps are capable of self-priming, running dry without damage, and safely handling solids, making them ideal for applications where reliability is critical.
OVELL AODD Pumps provide exceptional performance for transferring sludge, sewage, wastewater, chemical dosing solutions, lime slurry, activated carbon, ferric chloride, sodium hypochlorite, polymer solutions, acids, alkalis, and other challenging process fluids. Their seal-less diaphragm design eliminates leakage risks while reducing maintenance requirements and minimizing plant downtime.
One of the greatest advantages of air operated diaphragm pumps is their ability to automatically adjust to changing flow conditions without requiring complex electronic controls. Whether transferring highly viscous sludge, abrasive slurry, or corrosive wastewater, OVELL pumps maintain stable flow while protecting operators and surrounding equipment.
Water treatment facilities also benefit from the explosion-proof operation of pneumatic diaphragm pumps. Since the pumps are powered entirely by compressed air, they can safely operate in hazardous environments without electrical ignition risks. This makes them an excellent solution for chemical storage areas, wastewater collection systems, and industrial processing plants.
With corrosion-resistant materials such as PP, PVDF, Aluminum, Stainless Steel 316, Cast Iron, PTFE, Santoprene, EPDM, and Viton, OVELL AODD Pumps offer excellent chemical compatibility across a wide range of water treatment applications.
Whether handling clean water or highly contaminated industrial wastewater, OVELL delivers reliable pumping performance with lower maintenance costs, longer service life, and improved operational efficiency.
Water treatment systems involve multiple pumping stages, each presenting unique challenges. From raw water intake to sludge disposal, pumps must reliably transfer fluids with varying viscosities, chemical compositions, and solid contents. OVELL Air Operated Double Diaphragm Pumps are engineered to perform efficiently throughout every stage of the treatment process.
AODD pumps are commonly used to transfer raw water from rivers, lakes, reservoirs, and storage tanks. Their excellent suction lift and self-priming capability eliminate the need for complicated priming systems while ensuring dependable operation.
Chemical dosing is one of the most important processes in water treatment. OVELL diaphragm pumps safely transfer chemicals including:
The leak-free diaphragm design minimizes operator exposure while improving dosing accuracy and reducing maintenance.

Activated sludge, thickened sludge, digested sludge, and dewatered sludge often contain high concentrations of suspended solids that rapidly wear conventional pumps.
OVELL AODD Pumps easily handle abrasive sludge with excellent solids-passing capability while maintaining stable flow under fluctuating operating conditions.
Municipal and industrial wastewater frequently contains sand, grit, fibers, suspended solids, grease, and debris. OVELL diaphragm pumps transport these challenging fluids without clogging while reducing maintenance downtime.
Filter presses require stable pressure during sludge dewatering. Air operated diaphragm pumps naturally adjust flow according to pressure changes, making them one of the preferred pumping technologies for filter press systems.

Construction sites, mines, tunnels, and wastewater treatment plants often require continuous dewatering. OVELL pumps deliver reliable self-priming performance even under harsh working conditions and can safely operate when intermittently dry.
Modern industrial facilities increasingly recycle wastewater to reduce operating costs and environmental impact. OVELL pumps support recycling processes by transferring reclaimed water, process water, and treatment chemicals with exceptional reliability.

OVELL has developed a comprehensive range of Air Operated Double Diaphragm Pumps specifically designed for demanding industrial applications.
Key advantages include:
Available pump materials include Aluminum, Stainless Steel 316, Cast Iron, Polypropylene (PP), PVDF, and a wide selection of diaphragm materials including PTFE, Santoprene, EPDM, Buna-N, and Viton to suit virtually every water treatment application.
From municipal wastewater treatment plants to industrial process water systems, mining operations, food processing facilities, pharmaceutical plants, semiconductor manufacturing, battery production, and chemical processing industries, OVELL AODD Pumps provide dependable fluid transfer solutions that maximize productivity while minimizing maintenance costs.
