Hydra-Cell Pro Metering Pumps

High-Pressure Seal-Less Diaphragm Metering Pumps for Precise Dosing

A metering pump is designed to transfer a precise, controlled volume of fluid. Performance is commonly evaluated against API Standard 675, which defines requirements for linearity, repeatability and steady-state accuracy of controlled-volume positive-displacement pumps.

We specialize in the Wanner Hydra-Cell Pro (P Series and MT8) seal-less metering pumps. These hydraulically balanced diaphragm pumps deliver accurate dosing at high pressures while eliminating packing and mechanical seals. The result is reliable performance on viscous, abrasive and otherwise difficult fluids.

Available Models at a Glance

Use the navigation menu above for detailed pages on each model. Flow and pressure values are approximate maximums; actual performance depends on fluid properties and system conditions.

Why Choose Hydra-Cell Pro (P Series) Metering Pumps?

Unlike conventional solenoid-driven metering pumps, the Hydra-Cell Pro P Series uses one or more hydraulically balanced diaphragms driven by a motor and gearbox. Flow rate is controlled by pump shaft speed (typically via a variable-frequency drive), giving excellent turndown and precise control.

Key advantages include:

• Seal-less design — no packing or mechanical seals to leak or maintain
• API 675 performance (linearity, repeatability and accuracy)
• Ability to handle viscous, abrasive and difficult fluids (isocyanates, polyols, catalysts, acids, deionized water, etc.)
• High continuous-duty pressure capability (up to 3,500 PSI on selected models)
• Broad flow coverage from fractions of a gallon per hour to over 1,300 GPH

How to Select a Metering Pump

Begin with the required flow rate (and any turndown range) and the system pressure. If the duty falls within the capability of a lower-cost solenoid style pump, that may be the most economical choice. When higher pressure, difficult fluids, continuous duty or greater control precision is required, the Hydra-Cell Pro P Series is typically the preferred solution.

We also supply related accessories including calibration cylinders and level sensors to support accurate system setup and monitoring.