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Inverter Drive Flexible Impeller Pump
Inverter Drive Flexible Impeller Pump
See Technical Data |
Model Max Capacity (m³/hr) Max Pressure (m)
INV-BS 22.5 32

FAQs

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How does an Inverter Drive Flexible Impeller Pump work?

This pump operates by the rotation of the internal shaft, which causes the flexible impeller to bend against the casing, pushing fluids and solids out of the discharge port.
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What is the difference between a Centrifugal and a Flexible Impeller Pump?

A Centrifugal Pump is a Rotodynamic pump that passes energy from the motor to the liquid, which forces the fluid out of the discharge port. The Impeller Pump is a Positive Displacement Pump that traps small amounts of liquid and forces it from the suction to the discharge port.
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How does this differ from other products on the Tapflo website?

The INV-BS series is a cost-effective alternative to the INV range. It features simplified controls with speed adjustment from 175 to 1400 rpm, a reversing switch for bi-directional flow, and a compact 2-wheel trolley design. Unlike the INV series, it does not include dry-run protection.
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What applications are suitable for this pump?

Oenology, Chemical, Pharmaceutical, Cosmetic, Food & Beverage.
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Are these pumps self-priming?

Yes, they can self-prime up to 6m suction lift from dry.
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Can this pump run dry?

No. Running dry can damage the impeller or mechanical seal. Unlike the INV series, the INV-BS range does not include dry-run protection, so the pump must always be operated with liquid present.
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Is this pump suitable for abrasive or hazardous chemicals?

Suitability depends on the application and material selection. With impellers available in NR, NBR, Neoprene, EPDM, and Silicone, and pump heads in stainless steel 304L or 316L, the INV-BS can handle a wide range of fluids including some chemical and cosmetic products. For highly abrasive or aggressive hazardous chemicals, material compatibility should be checked case by case to ensure safe and reliable operation.

Inverter Drive Flexible Impeller Pump

Tapflo UK is proud to be a partner of Liverani, a leading Italian manufacturer, supplying us with highest-quality Flexible Impeller Pumps and Liquid Ring Pumps.

Our Inverter Drive Self-Priming Flexible Impeller Pump, has been designed as a simplified and more cost-effective alternative to the INV Series. The INV-BS excels in the transfer of sensitive and delicate fluids, including viscous substances and suspended solids, with solids passage up to 10mm for the MINOR range and up to 25mm for the MAJOR range. Features either the close-coupled MINOR 40 or MAJOR 60 pumps, fitted with forced ventilated motors onto a 2-wheel trolley system. All flow control is located on the control panel, as opposed to our INV series, this pump doesn't offer dry run protection.

Typical applications for our Inverter Drive Self-Priming Flexible Impeller Pump:

  • Oenological
  • Food
  • Chemical
  • Cosmetics
  • Pharmaceutical
Overview

Our INV-BS Self Priming Flexible Impeller Pump Series is characterised by featuring either the close-coupled MINOR 40 or MAJOR 60 pump units fitted with forced ventilated motors onto a 2-wheel trolley system. All flow control is located on the control panel, and dry run protection isn’t featured.

The speed adjustment range has been limited to 175 – 1400 rpm due to the absence of a gearbox, as opposed to a minimum speed of 50 rpm capable with the INV series.

The INV-BS is a cost-effective alternative to the INV series, which you can find here: VA & INV Self Priming Flexible Impeller Pumps.

Due to the 4 kW inverter drive system, the feeding supply for both models needs to be 400V three-phase. Manual or Spring Loaded By-Passes are also available on request.

Features & Benefits
  • Delivers pulsation-free pumping, ideal for shear-sensitive liquids
  • Solids passage up to 25mm (model dependant)
  • Self-priming up to 6m (no need for a non-return valve)
  • With a reversing switch integrated on the panel, these pumps offer bi-directional flow
  • Multiple mounting options for the pump head (can also be rotated)
  • Comprehensive connection options available including DIN, BSP, Triclover, SMS, RJT, Friederich, Garolla, and Macron
  • Spring loaded by-passes available for the MINOR 40 range, and manual by-passes are available for the MAJOR 60 range
  • Pump heads constructed from Stainless Steel 304L, Stainless Steel 316L available on request
Specifications
Max Capacity (m³/hr) 22.5m³/hr
Max Pressure (m) 32m
Max Temperature (°C) 100°C
Max Viscosity (cP) Up to 50,000 cP
Outlet Sizes 1″ BSP F to
2½” RJT