TNP | ANSI | Magnetic Drive Pumps

Capacity

<159m³/hr

Head

<101 Metres

ETFE Lined Mag Drive

ANSI Standard Dimensions

When you need to replace an ANSI Mag drive pump and don't wan't the time or cost hassle of changing pipework to fit an ISO pump, the TNP series of non-metallic ETFE lined magnetically driven sealless pumps are available from stock in the UK and can be a far more cost-effective solution.

Capable of flowrates up to 159m³/hr and heads to 101m. With temperature ranges from -85°C to +121°C, these ANSI mag drive interchangeable pumps will help you to minimise downtime and keep your process plant running effectively. The TNP range incorporates a ductile iron casing that is lined with a fluoropolymer. This combination of materials allow for the mechanical strength of metal with the corrosion resistance of a non-metallic lining. The TNP designs use a non-rotating shaft that allows for ease and maintenance and improved performance over standard rotating shaft designs.

The rear containment shell, with its dual laminate of a fluoropolymer is then reinforced with a vinyl ester composite for high burst pressure resistance. The unique, no-weld impeller design has eliminated the weld associated with other designs and thus allows for a more chemical impervious arrier. The outer magnetic assemblies are designed for protection against corrosive environments.

The TNP range design provides sealless operation and chemical containment. The rare earth magnets allows for superior no-slip performance. All wetted parts are made from ETFE fluoropolymers to handle a wide range of corrosive fluids and solvents.

THE CREST PUMPS LIFETIME GUARANTEE

No matter how old your pump becomes, in the unlikely scenario that you have a problem, our engineers will be on hand to diagnose the issue and help you get up and running again.

That’s why, with Crest Pumps you’ll never need to worry about unplanned downtime again.

Talk to us now to discuss your chemical pump requirements or book a free site audit to see how much time and money you could save!

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Reliability Redefined

Built to outlast and outperform

Upfront costs are just the beginning—did you know energy and maintenance make up most of a pump’s lifetime cost? A Life Cycle Cost (LCC) analysis breaks down these expenses, showing how small changes can lead to big savings in efficiency, running costs, and carbon footprint.

Compare 2 pumps lifecycle cost now!

Stop replacing pumps and start investing in performance.

TNP

1. Drain - Our casing drain is a standard feature that allows for easy and safe removal of chemicals in the casing if required.

2. Casing - The top discharge ANSI configurations allows for maximum pump interchangeability. Our unique ETFE roto-moulding process promotes equal delivery of liner material throughout casing for improved corrosion resistance and longer life.

3. Shaft Support - One piece construction that is easily removed.

4. Mouth ring - Easily removable for quick field replacement. The unique design allows for handling of a variety of chemicals and specific heat parameter. Available in SiC.

5. Impeller/Inner magnet - Our unique ETFE injection moulding process allows us to ensure high quality, stronger, and more chemically resistant impellers. Our process has eliminated welding that can contribute to premature impeller failure.

6. Main Bushing - Our large, one piece, high performance bushing is grooved to allow for field and particle flow through the pump.

7. Shaft - This non-rotating design allows for ease and installation and maintenance. This shaft is oversized to handle a variety of pump requirements.

8. O-ring - Available in VITON Teflon encapsulated VITON or EPDM.

9. Rear containment shell - Our shell is an injection moulded fluoropolymer with a composite encapsulation. This design offers some of the industries strongest containment shell burst pressure resistance.

10. Rear Casing Support

11. Outer magnet - Our rare earth magnets make it possible to run the pump at rated torque throughout the temperature range without having to use special motors or starters. Our magnets are fully encapsulated for superior protection from corrosion.

12. Bracket - Designed to mate with several motor sizes. In a close - couple configuration, the driver will accept either a NEMA C-face or an IEC motor.

Frequently Asked Questions

What are magnetic drive pumps used for?

Magnetic drive pumps are used in a wide variety of applications, including chemical processing, water treatment, and metal finishing. They are designed to provide a reliable and efficient solution for transferring corrosive and hazardous liquids. The pumps are constructed with a non-metallic construction, making them ideal for use in highly corrosive and hazardous environments.

How do magnetic drive pumps work?

Magnetic drive pumps are centrifugal pumps that use a magnetic coupling to transmit power from the motor to the impeller. The drive magnet is mounted on the motor shaft that will connect by magnetic force to driven magnets contained within the pump. This type of pump is ideal for applications where leakage or contamination of the pumped fluid is a concern, as there is no mechanical seal or shaft seal to fail.

Which chemicals are your pumps suitable for?

We have specialised in corrosion resistant pumps since 1973 so can almost certainly find you a solution to your application. Our chemical resistance table shows just some of the liquids we have experience pumping, but please talk to us to find the best chemical pumping solution for you.

Best practices for maintaining a magnetic drive pump?

Check the pump regularly for signs of wear and tear.
Ensure the pump is properly lubricated.
Check the bearings for any signs of wear or damage.
Ensure that the pump is properly aligned with the drive motor.
Check the temperature of the pump and ensure it does not exceed the recommended levels.
Ensure that the pump is running at the correct speed.

Are these pumps fully corrosion and acid resistant?

Our range of magnetically driven acid pumps are fully corrosion and acid resistant against harsh applications such as Sulphuric Acid or Hydrochloric Acid.

We offer a range of durable and robust materials to tailor the pump to your exact businesses specifications and needs. Such as PVDF, Polypropylene, ETFE, PTFE, PVC and 316 Stainless Steel for the front and rear housing. Using the correct and most robust materials Reduce downtime and maintenance costs to your business.

For rare acid applications, we can also provide specialist O-ring materials and ceramic front and read rings.