Metering Pump · Electromagnetic
DFD · Electromagnetic Diaphragm Metering Pump
Manual stroke-frequency control, from 1 spm up to the model maximum, whether the pump is running or stopped. Digital frequency display and five flow segments. NX, GX and X housings have a level-switch input. Default head PP, PTFE, PVDF or SS316; PVC is order code PVT. Seal FKM, with EPDM, PTFE or AFLAS on order.
- Flow range: 1–55 L/h
- Max pressure: 20 bar
- Pump head: PP / PTFE / PVDF / SS316
- Supply: 220 V 50 Hz
No price on site — inquiry only.
Specifications
| Parameter | Value |
|---|---|
| Max flow | 55 L/h |
| Max back pressure | 20 bar |
| Materials | PP / PTFE / PVDF / SS316 / PVC |
| Control | manual |
| Explosion-proof | — |
| Power | 220 V 50 Hz |
Max flow and max back pressure are the opposite ends of this series. Each model row pairs the flow with the back pressure of that size.
Suction, viscosity and temperature
Suction lift, inlet pressure, viscosity, liquid temperature and ambient temperature belong on the inquiry, together with the medium and concentration.
Model specifications
| Model | Flow (L/h) | Pressure (bar) | Pump speed (SPM) | Power (W) |
|---|---|---|---|---|
| DFD-01-07-M | 1 | 7 | 120 | 30 |
| DFD-02-07-M | 2 | 7 | 120 | 30 |
| DFD-03-07-M | 3 | 7 | 120 | 30 |
| DFD-06-05-M | 6 | 5 | 180 | 40 |
| DFD-09-03-M | 9 | 3 | 180 | 40 |
| DFD-09-07-NX | 9 | 7 | 160 | 40 |
| DFD-12-07-NX | 12 | 7 | 160 | 40 |
| DFD-15-04-NX | 15 | 4 | 200 | 40 |
| DFD-20-03-NX | 20 | 3 | 200 | 40 |
| DFD-25-02-NX | 25 | 2 | 200 | 40 |
| DFD-02-20-HX | 2 | 20 | 180 | 40 |
| DFD-05-12-HX | 5 | 12 | 180 | 40 |
| DFD-06-07-HX | 6 | 7 | 180 | 40 |
| DFD-10-05-HX | 10 | 5 | 200 | 40 |
| DFD-06-16-GX | 6 | 16 | 200 | 60 |
| DFD-23-05-GX | 23 | 5 | 200 | 60 |
| DFD-33-03-GX | 33 | 3 | 200 | 60 |
| DFD-55-0.1-GX | 55 | 0.1 | 240 | 60 |
| DFD-02-16-X | 2 | 16 | 120 | 65 |
| DFD-06-07-X | 6 | 7 | 120 | 65 |
| DFD-09-07-X | 9 | 7 | 120 | 65 |
| DFD-12-07-X | 12 | 7 | 120 | 65 |
| DFD-15-03-X | 15 | 3 | 120 | 65 |
| DFD-20-03-X | 20 | 3 | 160 | 65 |
| DFD-30-03-X | 30 | 3 | 160 | 65 |
| DFD-50-02-X | 50 | 2 | 240 | 65 |
Materials
Materials science →PP
Heads, tanks, frames
About 0–80 °C.
PTFE
Diaphragm face, liner, seats, tape
Process face often −20–150 °C. Limited by the backing, not the skin.
PVDF
Preferred plastic head for oxidizers
About −20–120 °C. Caustic service much lower.
SS316
Heads, plungers, clean-water hardware
Wide mechanically. Chloride SCC risk rises with heat.
PVC
Pump head, valves, day tanks
About 0–50 °C. Softens above that.
Temperature windows below describe the listed materials. Liquid temperature for the pump still depends on the head, the chemical and the pressure, and is confirmed on the quote.
Documents
Main drawings ship with the quote. CAD is not published on the site.
Recommended spares
- Quote this spare
PTFE diaphragm, EM / DX
AT-DIA-EM-PTFE · 12 months / 8,000 h
- Quote this spare
PVDF check-valve kit
AT-VLV-PVDF · 12 months
FAQ
Why are there no prices?
This is an inquiry catalog. Duty, materials and certificates change the offer. Engineering replies within one business day.
What flow and pressure does this model cover?
Series ends: up to 55 L/h and up to 20 bar. Those ends are separate. Where a model table is shown, each row pairs flow with that size's back pressure. The duty is confirmed on the quote.
Which wet-end materials are listed?
PP / PTFE / PVDF / SS316 / PVC. Confirm medium, concentration and temperature on the quote.
Which certificates do you hold?
Certificates are confirmed on the quote. They are not listed on this site. EAC is arranged per order.
How do I inquire this model?
Open Get a Quote, keep the model number, and send duty and country. Engineering replies within one business day.
