AODD Air-Operated Diaphragm Pumps WK - Series
For difficult conditions – Always reliable
The air operated diaphragm pumps of the WK series achieve high flow rates and
are individually configurable due to their flexible modular design. There are different
choices of connection and equipment options available.
The housings are made of aluminium or stainless steel. By optimizing the size of the
internal cross section we achieve lower wear/abrasion and a longer lifetime.
All KELLER-AODD pumps are equipped with modern composite diaphragms and
have a closed surface on the fluid side. The short stroke increases the lifetime of the
diaphragm and reduces the pulsation of the pump.
The integrated and maintenance-free air valve is protected from external conditions
being installed inside the center section of the pump. By regulating air pressure and
air volume the flow rate can be controlled continuously.
These AODD pumps range in size from ½” to 2” covering a performance range from 75l/min to 700l/m
Chemicals and pharmaceuticals
Wastewater and water
and many more
Can work against closed valve
Easy to maintain
Dry running possible
ATEX Version available
Continuously adjustable via the air volume
High chemical resistance
Ideal for permanent load
The solid construction of the Solid Series is ideal for dispensing tasks in the process industry and in machine and plant engineering. The solid polyethylene (PE) manufactured pumps are due to the superior abrasion resistance particularly for pumping abrasive fluids with solid particles. In particularly harsh chemicals housing and membranes are made of PTFE for use.
The solid construction of the Solid Series is ideal for dispensing tasks in the process industry and in machine and plant engineering. The solid polyethylene (PE) manufactured pumps results in superior abrasion resistance particularly for pumping abrasive fluids with solid particles. When pumping particularly harsh chemicals housing and membranes are made of PTFE.
By operating with compressed air without the need for electrical components, this provides for more flexible use. For use in potentially explosive atmospheres there are ATEX variants with conductive enclosures to choose from. By combining with optional accessories such as stroke sensors, diaphragm rupture monitoring and fluid pressure relief systems, the pneumatic diaphragm pumps of the Solid Series are equipped for almost any task. The integrated and maintenance free air control system is protected from external influences by being installed inside the pump. Through the regulation of air pressure and air flow the flow rate can be adjusted continuously. Even under adverse conditions, the pumps of the Solid Series deliver reliable and consistent output.
The air operated diaphragm pumps in sizes 1/4 "to 3" cover a power range from 10 l / min to 800 l / min.