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V-Belt Drive Flexible Impeller Pump
V-Belt Drive Flexible Impeller Pump
See Technical Data |
Model Max Capacity (m³/hr) Max Pressure (m)
GR Series 43.8 24

FAQs

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How does a V-Belt Drive Flexible Impeller Pump work?

The pump works by rotating a flexible impeller inside the casing. As the vanes bend, they trap and move liquid and solids from the suction side to the discharge side, creating smooth, pulsation-free flow.
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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. Whereas, 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 GR Series features a V-belt drive that separates the motor from the pump head. This design allows the belt to slip when handling viscous or solids-laden fluids, protecting the motor from overload. This makes it particularly robust and reliable for demanding duties compared to direct-drive alternatives.
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What applications are suited to this pump?

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. The GR Series can be fitted with optional dry-run protection, bypasses, or level sensors to help safeguard against this risk.
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Is this pump suitable for abrasive or hazardous chemicals?

Suitability depends on the fluid and material selection. With impellers available in NR, NBR, Neoprene, EPDM, and Silicone, and pump heads in stainless steel 304 or 316, the GR Series can safely handle many chemical applications. However, for abrasive or hazardous chemicals, compatibility must be confirmed case by case to ensure reliable performance and longevity.

V-Belt 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. The GR Series V-Belt Drive Flexible Impeller Pump is a self-priming pump designed to handle viscous fluids up to 50,000 cPs while safeguarding the pump motor from overloading. With the ability to self-prime up to 6m from dry, this pump provides superior suction lift capabilities. The GR Series, with pump heads constructed from Stainless Steel AISI 304 (316 available on request) features a unique belt-driven design that separates the motor from the pump head, preventing overload when handling viscous or solids-laden fluids. Additionally, this pump can be installed on either a baseplate or trolley-mounted and can be supplied with our without a control panel. Featuring manual or spring-loaded bypasses, and additional protection mechanisms such as dry-run protection, this series offers a versatile solution for demanding applications. Typical applications for our GR Series V-Belt Drive Flexible Impeller Pump:
  • Food & Beverage
  • Chemical
  • Cosmetics
  • Pharmaceutical

Download Brochure
Overview

The GR Self Priming Flexible Impeller Pump is characterised by its belt-driven design where the motor is separated from the pump head and driven by a belt drive. When being used on particularly vicious or solids laden fluids the belt will slip to protect the motor from overloading.

The series can be delivered with either a baseplate or trolley mounted and with or without a control panel. The control panel features an on/off/reversing switch, which is fitted to the terminal box of the motor when a control panel isn’t supplied. Dry Run Protection can also be fitted to the pump head as well as Manual or Spring Loaded By-Passes.

Features & Benefits
  • Self-priming up to 6m without the need for a non-return valve
  • Pulsation-free flow makes this pump well-suited to shear sensitive fluids
  • Can handle viscosities up to 50,000 cPs
  • Solids handling up to 25mm (10mm for MINOR, 15mm for MAJOR and 25mm for MAXI)
  • Reversible operation
  • Wide range of impeller material options
  • Multiple connection options available
  • Pump head can be rotated and installed in various positions for added versatility
  • Manual or spring-loaded bypasses available on request
  • Single or 3-pahse motor options available
Specifications
Max Flow (m³/hr) 43.8m³/hr
Max Pressure (m) 24m
Max Temperature (°C) 100°C
Max Viscosities (cPs) Up to 50,000 cPs
Self-Priming Up to 6m from dry

 

Voltages: 110, 230 & 400V (1 & 3 Phase)

Speeds: 300, 470, 600 & 700 rpm single & dual speed (235-470, 300-600 & 350-700 rpm)

Counter Connections: All pumps are supplied with Garolla Fittings as standard however a wide range of connection & counter connection types are available upon request.

Variations
  • Control panel
  • Bypass
  • Barrel filling kit
  • Carry handle
  • Flow meters
  • Dry run protection
  • Pressure switch
  • Level sensors
  • Remote control
  • Motor shroud