Simple ingenious design coupled with Swiss engineered parts makes DPP gear pumps the most accurate, long-life continuous flow pumps available on the market; ideally suited for food and beverage, inkjet printing, sterilization and medical applications.
The Extreme Series gear pump is designed for high stress loads. It can easily pump difficult fluids from pigmented inks to strawberry smoothies.
The Optima Series gear pumps are your first choice in any application in which a constant delivery volume is required at high pressure in a compact area.
Silencer LD extends the successful Silencer series gear pump to light duty applications requiring a more compact size.
The Silencer Series gear pumps were designed from scratch to be everything a gear pump should be: durable, leak-free, reliable, chemically inert and quiet.
The DPP gear pump series ranges from cost-optimized Silencers, utilized at high-temperature ranges, to the Extreme Series that also works with challenging fluids such as pigmented ink at high pressure levels.
Each gear pump is engineered to deliver the same flow rate from pump-to-pump.
Each pump is made from materials that are resistant to a wide range of aggressive chemicals. Our clients can be assured their pumps will operate reliably and precisely in even the most severe environments.
All pumps can be cleaned quickly, easily and thoroughly without having to be removed, thus ensuring increased productivity and reduced costs.
With their excellent delivery accuracy and reliability, the Silencer, Extreme and Optima Series precision gear pumps are perfect for use in the following applications.
Diagnostic and Medical equipment covers a wide range of products and Diener Precision Pumps are ideal for all of them. Our gear pumps are typically used for waste and bulk fluid transfer applications, whereas our metering/dosing pumps are used where ultra-low (micro-dosing) is required.
Diener Precision gear pumps are the ideal choice for cooling systems, whether they be water, water/glycol, di-electric, or freon-based.
Diener pumps are the go-to solution for sterilization systems, whether they be for surgical equipment cleaning or disinfection spray systems to combat the spread of the Covid-19 virus.
Pulse-free pressure delivery, able to pump all types of dye and solvent-based inks, magnetically-coupled drives, precision performance electronic control; these are the features that make Diener Precision Pumps the preferred choice in continuous inkjet printers.
Diener Precision Pumps complete line of “flow-thru” design pumps are ideal for beverage transfer and dispensing. This feature allows very quick clean-in-place flexibility and is certified to the National Sanitary Foundation (NSF/ANSI 169).
Repeatable pump-to-pump performance and micro-dosing is achieved via extremely small manufacturing tolerances, making for a better dialysis treatment and an enhanced patient experience.
A gear pump contains two-or-more gears that rotate, carrying small pockets of fluid between the gear teeth. These pockets are squeezed as the gears mesh, forcing the fluid out.
DPP gear pumps are typically fitted with BLDC, conventional DC and AC motors.
In general, DPP pumps last so long servicing is not required. If performance does drop, it is more cost effective to replace the pump head than to service it.
This depends on the application (flows, pressures, fluid cleanliness, duty-cycle, etc…) Our engineering team is experienced in life-enhancing designs and takes this into consideration with each application. In many applications, our pumps out last the life of the instrument.
The wetted materials are chosen to be compatible with your fluids. DPP uses inert materials wherever possible to resist a wider range of fluids.
All design, development and prototyping is performed at our R&D facility in California, USA.
Our manufacturing is performed at our facility in Switzerland to the highest Swiss quality and workmanship.
External gear pumps are the most common type of rotary positive displacement pump. They consist of a driving gear, connected to a motor, and a driven gear. As the gears rotate, the mesh interface opens, and the expanding internal volume allows external pressure (often atmospheric) to push fluid into the pump. The rotating gears trap fluid between the gear teeth and the cavity wall. This fluid is transported along the cavity wall to the outlet where it is “squeezed” out of the pump when the gear mesh interlocks. Clearances within the pump can allow fluid to circulate back to the inlet, highlighting the need for precision design and manufacturing to achieve high efficiency and accuracy.
External gear pumps vary widely by industry and application, with flow rates ranging from 0.02 L/min to 50 L/min and pressures up to 500 bar. For pumps with flow rates < 5 L/min, the primary categories are direct drive vs. magnetically coupled. Magnetically coupled gear pumps eliminate the shaft seal, which is typically the life-limiting component of the pump. In doing so, the manufacturer must use high-precision components for effective hydrodynamic bearings and to minimize variation in the magnetic coupling. The types of gears can also vary, with spur gears being the simplest to manufacture, but helical gears delivering superior noise and vibration performance.
Our engineers and technical experts are eager to design a pump to your requirements.
