Every stroke of an AODD pump delivers a discrete pulse of fluid. This is not a defect — it is the fundamental operating principle of any positive displacement pump. But...
Injecta Electromechanical Pumps
Motor-Driven Diaphragm Dosing Pump
Geared for Higher Flow, Built for Continuous Duty
A motor-driven diaphragm pump replaces the solenoid coil with a geared electric motor turning an eccentric cam. The cam drives a connecting rod against a PTFE diaphragm, with a spring returning it on the suction stroke — the same reciprocating principle as a solenoid pump, but built to sustain far higher flow rates and continuous industrial duty cycles. The mechanism sits in an oil-bath aluminium housing for smooth, low-wear operation. Flow is set by adjusting stroke length manually, or automatically via a 4–20 mA signal or inverter for proportional dosing. Industrial and water treatment plants across Malaysia specify these pumps where flow requirements outgrow a solenoid pump's range.
Motor-driven eccentric cam — a geared electric motor replaces the solenoid coil, in an oil-bath housing for continuous duty
PTFE diaphragm, spring return — no seals in contact with the chemical, rated for long service life
Higher flow, higher pressure — flow rates up to 2,300 l/h, well beyond typical solenoid pump range
Manual or proportional dosing — stroke length dial for constant flow, or 4–20 mA/inverter servo control for automated dosing
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All Motor-Driven Diaphragm Dosing Pumps
Electromechanical Dosing Pump
Taurus TM Series
TM 02 / 04 / 06 · TM 06 High-Flow (H/Q)
Eccentric-cam diaphragm pump with spring return, housed in an oil-bath aluminium casing. Flow rates up to 1,200 l/h at pressures to 16 bar. Manual stroke adjustment, or remote control via 4–20 mA signal or inverter.
Electromechanical Dosing Pump
Taurus TM07 Series
TM07 A · B · C · D
Compact direct-diaphragm pump in a spring-return, polypropylene-cased design. Flow rates from 10 to 120 l/h at pressures up to 5 bar, available in single- or three-phase motor.
Mechanical Diaphragm Pump
TMP1 / TMP2 Series
TMP1 · TMP2
Compact, robust multi-reagent pumps with a variable eccentric system that minimises pulsation and shock. Rated for continuous duty and safe dry-running. TMP1 up to 530 l/h at 12 bar; TMP2 up to 2,300 l/h at 10 bar.
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Latest Resources
Why Voltage and Frequency Affect the Dosing Rate of a Motor-Driven Dosing Pump — And What To Do When They Don’t Match
In a wastewater treatment plant, a motor-driven dosing pump is commissioned, calibrated, and signed off. Six months later, the effluent discharge readings are inconsistent. The process team increases the chemical...
Why the Point of Chemical Injection Affects Dosing Accuracy More Than the Pump Specification
A dosing pump specified to ±1% accuracy can deliver poor process results if the injection point is wrong. The pump delivers the correct volume. The chemical does not reach the...
Why Stroke Rate Matters More Than You Think When Dosing Viscous Chemicals
Most engineers size a metering pump based on two things: the required flow rate and the discharge pressure. These are the right starting points. But for viscous chemicals, there is...
When Chemical Compatibility Charts Are Not Enough: The Case for System-Level Chemical Validation
Chemical compatibility charts give you a starting point. They do not tell you whether your specific system will fail. The chart says EPDM is compatible with 30% sulphuric acid —...