What is a Dosing skid?
A chemical dosing skid is a specialized type of process skid designed to store, mix, and accurately inject chemicals into a process line or system. These are widely used in water treatment, oil & gas, and chemical industries to control parameters like pH, corrosion, scaling, or microbial growth.
It’s a pre-engineered modular unit containing all the equipment required to meter and inject precise quantities of chemicals into a system (like pipelines, cooling towers, or water treatment lines).
Main Components
Advantages
Application
A typical chemical dosing skid includes:
- Chemical storage tank – holds the chemical solution.
- Dosing pump(s) – injects the chemical at a controlled rate (diaphragm or metering type).
- Calibration column – verifies pump accuracy and allows manual calibration.
- Agitator (optional) – keeps the chemical solution homogeneous.
- Piping and valves – direct the chemical flow safely.
- Pressure relief valve – ensures overpressure protection.
- Instrumentation – flowmeters, level sensors, pressure gauges.
- Control panel (PLC) – for automation, alarms, and integration with plant SCADA.
- Base skid – robust steel frame holding the entire assembly.
- Factory-tested and ready for installation
- Accurate, consistent chemical injection
- Reduces manual handling of chemicals
- Easy maintenance and mobility
- Integrates with process control systems
- Water and wastewater treatment (chlorine, alum, antiscalant dosing)
- Oil & gas (corrosion inhibitor, demulsifier, biocide injection)
- Cooling towers (pH control, anti-fouling dosing)
- Chemical process plants (precise reagent or catalyst dosing)