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...
Injecta Electromechanical Pumps
Motor-Driven Piston Dosing Pump
Piston-Precision Dosing at High Pressure
The piston version of the Taurus platform uses the same geared-motor and eccentric-cam mechanism as the diaphragm range, but drives an SS316 or ceramic piston directly against an SS316 or PVC pump head instead of a flexible diaphragm. The rigid piston stroke gives tighter dosing accuracy and lets the pump hold up to 20 bar across its full flow range, well beyond typical diaphragm pressure ratings. As with the rest of the Taurus range, the mechanism runs in an oil-bath aluminium housing for smooth, low-wear continuous operation. Flow is set by adjusting stroke length manually, or automatically via a 4–20 mA signal, inverter, or the optional electric actuator for proportional dosing. A 12VDC-powered variant is also available for solar or battery-fed installations. These pumps are specified across Malaysia wherever a process needs precise, high-pressure chemical injection.
Motor-driven eccentric cam — a geared electric motor drives the piston stroke, in an oil-bath housing for continuous duty
SS316 or ceramic piston — paired with an SS316 or PVC pump head for chemical compatibility
Pressure up to 20 bar — rigid piston stroke holds pressure across the full flow range, TP15 and TP25 series
Manual or proportional dosing — stroke length dial for constant flow, or 4–20 mA/inverter/electric-actuator control for automated dosing
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All Motor-Driven Piston Dosing Pumps
Electromechanical Piston Pump
Taurus TP15 Series
TP 15 006 · 011 · 017 · 025 · 030 · 038 · 048 · 054 · 064
15 mm stroke piston pump with 6–64 mm piston diameters. Flow rates from 1.5 to 304 l/h at pressures up to 20 bar. SS316 or ceramic piston, SS316 or PVC head. 12VDC version available.
Electromechanical Piston Pump
Taurus TP25 Series
TP 25 0025 · 0030 · 038 · 048 · 054 · 064 · 076 · 089
25 mm stroke piston pump with 25–89 mm piston diameters. Flow rates from 40 to 1000 l/h at pressures up to 20 bar. Built for higher-volume, high-pressure dosing duty.
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Latest Resources
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...
The Relationship Between Stroke Rate and Pulsation — And Why It Matters Downstream
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...
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 —...
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...