Description
Engineering Application & Overview
Grundfos DDA, DDC, DMH, and DMX Series dosing pumps are precision-metering diaphragm pumps engineered for accurate, reliable injection of chemicals into process streams. The DDA and DDC are intelligent digital dosing pumps featuring FlowControl technology — real-time flow verification via integrated pressure sensing — ensuring dose accuracy even against back-pressure fluctuations, a critical requirement in water treatment chemical dosing at PT Air Batam Hulu and industrial process control. The DMH series handles corrosive and viscous chemicals with PVDF/SS wetted components up to 16 bar. The DMX is a mechanically actuated economical option for straightforward chlorine or pH-correction dosing. Applications: water treatment chemical injection (chlorine, coagulant, pH adjustment), boiler water conditioning in industrial plants, cooling tower biocide dosing, and bilge water chemical treatment on vessels at Batam shipyards.
Technical Specifications Table
| Parameter | Specification |
|---|---|
| Series | DDA, DDC (digital); DMH, DMX (mechanical) |
| Pump Type | Diaphragm metering / dosing pump |
| Flow Rate Range | 0.4 – 940 L/hr (model-dependent) |
| Max Back Pressure | Up to 16 bar |
| Wetted Materials | PVDF, SS 316L, EPDM, Viton (variant-dependent) |
| Frequency | 50 Hz / 60 Hz |
| Voltage | 1 x 100–240 V (universal) |
| DDA/DDC Control | FlowControl, 4–20 mA, pulse input, PROFIBUS |
| DMX Control | Manual stroke adjustment |
| Accuracy (DDA/DDC) | ±1% of setpoint |
| Diaphragm Material | PTFE-coated EPDM |
| IP Rating | IP65 (DDA/DDC/DMH) / IP54 (DMX) |
The PT HHM Batam Authorized Advantage
Chemical dosing accuracy is non-negotiable in water treatment and industrial process control. PT HHM Engineering Solutions, as Batam’s only Authorized Grundfos Dealer, ensures every DDA/DDC/DMH/DMX dosing pump is correctly calibrated and configured to your chemical and system requirements before delivery. Genuine Grundfos diaphragm and valve ball spares are stocked in Batam for rapid replacement. Contact: +62 778 489 3282.
Reviews
There are no reviews yet.