Flexible Impeller Pumps

Flexible Impeller Pumps stand out for their distinctive design and strong technical performance. Also referred to as Flexible Vane Pumps, they incorporate a high-quality rubber impeller with integrated vanes inside the pump housing. This configuration enables efficient handling of both low-viscosity and high-viscosity fluids, as well as liquids containing suspended solids.

With a straightforward design and minimal moving components, these pumps are easy to maintain, helping to reduce downtime and simplify servicing.

All Tapflo Flexible Impeller Pumps can be fitted with food-grade mechanical seals and impellers for enhanced hygienic standards. Some key benefits of using Flexible Impeller Pumps are:

• Flexible Impeller Pumps are highly customisable and can be tailored to suit specific operational requirements
• Ideal for shear-sensitive viscous products and those with solids in suspension
• Reversible operation
• Self-priming capabilities
• Suitable for emptying sumps, tanks, drums, and IBCs
• Delivers pulsation-free flow for filling, dosing, and filtration applications
• While these pumps are not ATEX-rated a standard, ATEX-rated motors are available on request

Yes, Flexible Impeller pumps are self-priming, meaning they can create their own suction without the need for additional liquid or air.

Yes, Flexible Impeller pumps can run dry up to 6m, which means they can operate momentarily without the presence of liquid through the pump.

Common industries and applications of Flexible Impeller pumps:

• Oneological
• Food
• Chemical
• Cosmetics
• Pharmaceutical

• What media will be pumped? Consider the chemical composition of the media you will be pumping – is it chemically neutral or corrosive, shear sensitive etc.
• What is the viscosity of the media you intend to pump? Consider viscosity limitations, shear sensitivity etc.
• Do you need to pump fluids containing solids?
• Is your environment or fluid explosive?
• Do you require CIP/SIP?
• Do you require self-priming capabilities?
• Will  your pump be stationary or do you need it to be portable?

• NBR: Excellent resistance to Oils & fats, FDA-approved
• CR: Ideal for chemical and mechanical resistance
• EPDM: Used for hot liquids and CIP, FDA-approved, ideal for acids and alkalis
• NR: Best mechanical resistance, ideal for room temperature water-based fluids
• VMQ: Used for high temperatures with low mechanical resistance

Some materials offer an ATEX option on request for explosive applications and environments.

Some Flexible Impeller Pumps are suitable for food and beverage applications, including breweries and wineries. We may recommend a different range for more complex hygienic applications.