Digital Dosing Pump E01A – 7.5 to 90 L/h, up to 14 bar

Overview

The digital dosing pump E01A is the compact series for laboratory, package-plant and small municipal dosing. It covers 6 models, from 7.5 L/h · 14 bar to 90 L/h · 3 bar. First, a vector motor drives the diaphragm directly. As a result, you set the flow digitally anywhere in a 1:1500 range, and the pump repeats each dose to within ±0.1–0.5 % of full scale.

In addition, the E01A runs almost pulsation-free, because the motor controls the stroke speed rather than counting strokes. Slow modes at 50 % and 25 % speed therefore handle viscous chemicals up to 800 and 1500 cP.

The A series covers small and medium chemical feeds — from 7.5 L/h at 14 bar to 90 L/h at 3 bar — with hose connections (12 × 8 mm) on all but the largest model.

How you control the digital dosing pump E01A

You set everything on the pump itself: flow rate, pressure limits, wear-part monitoring, concentration proportioning and function switching. For plant control, the E01A offers RS485/Modbus, 4–20 mA, voltage and pulse inputs. Which of these are fitted depends on the electrical version, so we specify it with you.

Moreover, a sensor measures the conductivity inside the diaphragm and raises an alarm if the diaphragm cracks. Pipe-network pressure monitoring also flags blocked or leaking lines. Finally, a quick-release base takes the pump off its mount in seconds for service.

Key features

• 6 models: 7.5 L/h · 14 bar, 15 L/h · 10 bar, 30 L/h · 8 bar, 42 L/h · 7 bar, 60 L/h · 4 bar, 90 L/h · 3 bar
• Vector-motor diaphragm drive — digital flow setting over a 1:250 to 1:1500 turn-down range, low pulsation
• Repeatability ±0.1–0.5 % FS; minimum flow 0.015 L/h
• Local operation: flow setting, pressure and wear-part monitoring, concentration proportioning, function switching
• External control: RS485/Modbus, 4–20 mA, voltage and pulse inputs (per electrical version)
• Diaphragm crack detection (LDC conductivity monitoring) and pipe-network pressure monitoring with alarms
• 50 % and 25 % slow modes for viscous liquids up to 1500 cP
• PTFE diaphragm, PP pump head, PVDF check valves, hose connection 12 × 8 mm (090-03: DN15 PVC pipe, PVC valves)
• Quick-release base; 110 – 240 V AC 50 Hz supply; rated power 120 W
• Options: pump heads in PVDF, PVC, CPVC, PP or stainless steel; EPDM, PTFE, FPM or FEPM gaskets; pressure and leakage sensors — specify when ordering

Digital dosing pump E01A — specifications by model

Performance

Materials, connections and power

Test conditions and options

¹ The supplier tested at an altitude below 100 m with pure water at 20 °C. ² A back-pressure valve on the outlet increases the pressure differential. ³ Optional flow components in other materials extend the medium temperature range — ask us.

Where to use the digital dosing pump E01A

The digital dosing pump E01A feeds coagulant, flocculant, hypochlorite, chlorine dioxide precursors, acid and caustic in water and wastewater plants. It also serves cooling-water and boiler-water treatment. In addition, mining, food, chemical and manufacturing plants use it for process dosing. For example, a pH or concentration control loop can drive the pump through its 4–20 mA or Modbus input.

Why buy dosing pumps from Hadron Group

Hadron Group designs, installs and services chemical dosing systems across South Africa and the SADC region. First, we size the pump to your duty point. Then we supply the suction and injection accessories, the spares and the chemicals it will dose. Finally, we commission it on site. Every model also carries its Hadron item code, so quotes, orders and spares always refer to the same pump.

Frequently asked questions

Which digital dosing pump E01A model do I choose?

Pick the flow and back pressure your duty point needs, with some margin. For example, choose 7.5 L/h · 14 bar for low-flow, high-pressure lines and 90 L/h · 3 bar for high-volume, low-pressure dosing. Each option carries its own item code and price.

How does the digital dosing pump E01A differ from a solenoid pump?

A solenoid pump doses in fixed strokes, so you turn it down by stroke frequency. The vector motor of the E01, however, controls the stroke speed itself. As a result, you get a far wider setting range, smoother output and precise dosing of viscous chemicals.

Can a PLC or controller drive it?

Yes. RS485/Modbus, 4–20 mA, voltage and pulse (water-meter contact) inputs are available, depending on the electrical version. In addition, the pump reports pressure, diaphragm and wear-part alarms.

Are spares and accessories available?

Yes — diaphragms, pump heads, check-valve sets and suction or injection lines. See dosing pump spares, or quote the model when you order.

Related: Digital Dosing Pump E01B · Digital Dosing Pump E01C · all dosing pumps · dosing pump spares.