Calibration Pot – Accurate Chemical Dosing and Pump Flow Verification
A Calibration Pot is an essential accessory in chemical dosing systems, designed to ensure the accuracy and reliability of dosing pumps. It allows operators to measure and verify the actual flow rate of a dosing pump against its set point, ensuring precise chemical injection in critical industrial processes.
What is a Calibration Pot?
A Calibration Pot (also called a calibration vessel) is a graduated container, typically made from stainless steel (SS304/SS316) or clear chemical-resistant plastic, with precise volume markings. It is installed on the suction line of a dosing pump and temporarily acts as the chemical source. By measuring the volume of liquid drawn from the pot over a set time, operators can calculate the true flow rate of the pump.
Key Features
-
Accurate Measurement: Graduated markings (ml or liters) for precise volume reading. Specify tolerance levels (e.g., ±1% of full scale) to highlight precision.
- Material Certifications: Mention compliance with standards like ASTM, ASME, or ISO.
-
Robust Construction: Available in stainless steel for durability and chemical resistance.
-
Capacity Options: Typically from 1 liter to 20 liters, suitable for various dosing ranges.
-
Safe Operation: Sealed design minimizes chemical spillage and vapor release.
-
Easy Integration: Standard flanged or threaded connections for quick installation.
Why Use a Calibration Pot?
-
Pump Performance Verification – Confirms actual pump output compared to set point.
-
Process Accuracy – Ensures correct chemical dosing, preventing underdosing or overdosing.
-
System Maintenance – Helps detect pump wear, suction issues, or air leakage.
-
Operational Safety – Reduces manual handling of chemicals during calibration.
Applications
Calibration pots are widely used in industries that rely on precise chemical dosing, including:
-
Water and Wastewater Treatment : Ensures accurate dosing of coagulants and disinfectants.
-
Power Plants
-
Oil & Gas : Verifies injection rates of corrosion inhibitors and demulsifiers.
-
Food & Beverage Processing
-
Pharmaceuticals & Chemicals : Maintains precision in active ingredient dosing for batch integrity.
Calibration Pot vs. Calibration Tube
While both devices serve for pump calibration, a Calibration Pot is ideal for larger volumes and permanent installations, whereas a Calibration Tube is more suitable for quick, small-volume measurements. Choosing the right solution depends on system requirements and safety considerations.
📊 Comparison Table: Pot vs. Tube
| Feature | Calibration Pot | Calibration Tube |
|---|---|---|
| Volume Range | 1–20 liters | 50–500 ml |
| Installation Type | Permanent | Portable/Temporary |
| Material Options | SS304/SS316, PVC, Acrylic | Glass, PVC |
| Safety Features | Sealed, vapor containment | Open or semi-sealed |
| Ideal Use Case | Industrial, continuous use | Lab or quick field checks |
Conclusion
A Calibration Pot is a reliable and indispensable tool for maintaining dosing pump accuracy and ensuring smooth chemical injection processes. Whether for industrial water treatment or critical chemical applications, using a calibration pot guarantees precision, safety, and efficiency in every operation.
👉 Looking for a high-quality Calibration Pot? Contact us today for custom sizes, materials, and designs to fit your dosing system.







