Tonkaflo pumps are multistage centrifugal pumps engineered for reverse osmosis (RO) and demanding water-treatment applications. Built for high-pressure service with flow rates up to 500 gpm, Tonkaflo pumps deliver the consistent pressure and reliability that RO systems require. As a Tonkaflo pump distributor, Purecowater supplies the full range of models, replacement pumps, and parts — and can help you match the right pump to your system.
What Are Tonkaflo Pumps?
Originally developed by Osmonics, Tonkaflo is a trusted name in multistage centrifugal pumps for high-purity and industrial water systems. Their multistage design generates the high discharge pressures needed to drive water through RO membranes efficiently, while maintaining smooth, stable flow. Tonkaflo pumps are widely used as RO feed and booster pumps across commercial, industrial, and high-purity water applications.
Tonkaflo Pump Models
- SS Series — Stainless steel components with thermoplastic (Noryl) internals. A cost-effective choice for general RO and water-treatment duty.
- AS Series — All-stainless-steel construction (304 and 316) for maximum corrosion resistance in demanding environments.
- QS Series — Vertical in-line design used primarily in medical equipment and sound-sensitive applications where quiet operation matters.
Applications
- Reverse osmosis feed and booster pumping
- Commercial and industrial water treatment
- High-purity water systems
- Medical and laboratory equipment (QS Series)
- Boiler feed and process water
Pump Curves & Sizing
Selecting the right Tonkaflo pump means matching flow rate, discharge pressure, and materials of construction to your system. Because performance varies by model and stage count, we provide Tonkaflo pump curves and sizing assistance on request to ensure your pump is correctly specified for your RO or water-treatment application. If you have an existing pump, share the model number and we can identify the correct replacement.
Tonkaflo Pump Distributor
Purecowater is a distributor and OEM partner for leading filtration and water-treatment brands, including Tonkaflo. Whether you need a new pump, a direct replacement, or help selecting the right model and materials, our team can support your project from specification through delivery.
Need a Tonkaflo pump or replacement? Request a quote with your application details or existing model number, and our team will follow up with pricing and sizing.