Chemical Dosing
Liquid Dynamics works extensively with Grundfos chemical dosing pumps and the Grundfos iSOLUTIONS range of products. The Grundfos systems can deliver accurate metering of chemicals with proven reliability. The system is easy to install, prime and calibrate.
SMART Digital (DDA, DDC and DDE) diaphragm dosing pumps offer modularity with fewer variants, making them a perfect pump. Simple to operate, easy to set up and with a straightforward navigation menu, SMART Digital also offers flow intelligence, which gives operational safety and precision. All this contributes to minimising life cycle costs. These intelligent dosing pumps can be applied to industrial water treatment processes that require chemical dosing such as CIP, pH adjustment, RO, filtration, as well as effluent coagulation and flocculation.
In addition to SMART Digital diaphragm pumps, Grundfos supplies motor-driven (DMX) diaphragm dosing pumps, and oscillating positive displacement pumps (DMH) for flocculation, disinfection, and pH adjustment.
Easy to install, easy to calibrate, easy to maintain and easy to integrate with existing equipment, Grundfos has the answer to your chemical dosing needs.
Grundfos Smart Digital Sets Brochure 1
Grundfos Smart Digital Sets Brochure 2
Important news about chemical dosing installations in New Zealand and Australia.
If you already have a chemical dosing installation, you should read this safety notice.
The notice became necessary after several site visits where pipework arrangement was of an inadequate design leaving the potential for chemical leakage. Leaking chemicals on the dosing pump head or pipework could be a sign of acceleration head pressure. Over time the chemicals could be forced behind the pump diaphragm, penetrating the assembly between the dosing head and the pump housing with the potential for damage to the gearbox.
Any leakage and subsequent damage to the pump must be avoided at all costs as there is risk of compromising effective dosing operation or even explosion.
Regular inspection and maintenance in accordance with the Installation and Operating Instructions is essential, especially checking that no chemicals have penetrated behind the diaphragm.
Liquid Dynamics can help
In an effort to support this safety notice Liquid Dynamics is offering a free site assessment. This free assessment will include assessment of:
- Pump Suitability and conditions
- Bulk storage of chemicals
- Bunding and controls
- Pipework and connections
- Injection point suitability and condition
- Automation and monitoring
- Redundancy and fail-safe measures
Following this assessment, Liquid Dynamics will supply a simple written report detailing any issues and recommendations for their resolution.
Don’t leave it until it’s too late. It is possible to detect leakages at an early stage.
Contact us today to schedule our site visit and assessment:
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Grundfos allows the detection of leakages at an early stage
To help detect leakage at an early stage, the SMART Digital dosing pump range is available in the FCM (Flow Control Monitor) variant which will detect changes in head pressure. Moreover, for DDA-AR 60, 120 and 200 l/h variants, the option for a diaphragm leakage sensor is available: alarms on the pump will be triggered in case of leakage, warning the operator.
For the DME 3 and 4 ranges (DME 60, 150, 375 and 940 sizes), a leakage sensor safety accessory (PN 96534443) is available that can be fitted in the drain of the DME 3 and 4 -AR and -AP versions and can be retrofitted on existing pumps. This sensor will assist in detecting leakage at an early stage. It will stop the pump if liquid is detected behind the diaphragm and generate an alarm to warn the operator.
For any and all assistance regarding chemical dosing systems, their selection, installation and effective operation and maintenance, talk to us here at Liquid Dynamics. We can answer any questions you may have.