Varmine H2O Solutions

Karol Bagh, delhi

DDA SMART Digital Series Pumps (0.0007 to 8 gph)

The DDA SMART Digital dosing series represents the latest generation in Digital Dosing pumpsfrom Grundfos. Its impressive intelligence and decision making capabilities go beyond anyexisting metering pump technology in the market.

The DDA can not only inject chemicals and verify injection; it can also measure valuable datasuch as flow or pressure. The pump can then diagnose the operation status based on therelationship between the diaphragm displacement and the pressure inside the head. The pumpis so smart it can tell you if there are air bubbles inside the head. This technology goes evenfurther. Thanks to its impressive logic capabilities, the DDA can make decisions to display and/orcorrect failures such as overpressure, valve leaks or air bubbles.

Smooth and Continuous Dosing
Ensures an optimum mixing ratio at the injection point without the need for additional accessories, such as static mixers. It also provides significant reduction of pressure peaks, preventingmechanical stress on wearing parts such as diaphragm, tubing, and connections, resulting in lessmaintenance required.

Full Stroke Length at All Times
The pump always operates at full stroke length, irrespective of the capacity set; this ensures maximum volume displacement per stroke, optimum accuracy, easy priming and improved suction.Up to 3000:1 Turndown Ratio
The Digital Dosing range is designed to give you superior flexibility and accuracy even when dosingvery small volumes.

Maximum Capacity Setting
With the DDA series you decide what the maximum capacity should be. You can select any valuewithin the performance range of each model and the pump will redefine the injection speed andadjust the operation scale within that range. So you only need a few models to cover multiple applications.

Anti-Cavitation / SlowMode
The variable speed of DDA pumps facilitates a unique anti-cavitation function for high viscosityliquids. This function provides slower suction speed (50 or 25% of the maximum speed), ensuringoptimal priming and pumping of even the most difficult liquids.

Flow Monitoring
The DDA FCM pump can precisely measure and display the actual dosing flow. Via the analog 0/4-20 mA output, the actual flow signal can easily be integrated in any process control system, without needing additional measurement equipment.

Pressure Monitoring
The integrated pressure sensor measures the actual pressure of the system, which is shown in thedisplay. In case of an overpressure situation, the pump will stop injecting, generate an alarm on thedisplay, and trigger a relay. The pressure can also be monitored via the 4-20mA signal output.

AutoFlowAdapt
The DDA FCM pump can recognize pressure fluctuations on the discharge line and adapt the speedto compensate the injection, maintaining a constant feeding set point.