LIVERANI - Impeller pump (EP)

The LIVERANI EP pump is a self-priming impeller pump with a coaxial design. Manufacturer: LIVERANI s.r.l. (Via De’ Brozzi 94, 48022 Lugo, Province of Ravenna, Italy). The company was founded in the 1950s and specialises in the pumping of viscous liquids and media containing suspended solids. The equipment is manufactured in accordance with CE standards.

The EP series is the widest-ranging in terms of sizes within the product family. It comprises six models: MICRO 3/8″, MINI 3/4″, MIDEX 1″1/4, MINOR 40, MAJOR 60 and MAXI 80. The weight ranges from 7 to 68 kg. The maximum flow rate, according to the manufacturer’s specifications, is 43,800 litres per hour. Three power supply options are available: single-phase, three-phase and 12 or 24 V DC.

LIVERANI EP pump: technical specifications

The manufacturer specifies the values for head, temperature, viscosity, self-priming and reverse flow for the entire LIVERANI range of impeller pumps. The range as a whole covers flow rates from 0 to 72,000 litres per hour.

Six sizes, ranging from MICRO to MAXI 80

Power is specified in ranges, as a single model size is available with different motors. There is a significant difference in weight between the MAJOR 60 and the MAXI 80: from 27 to 68 kg. The MAXI 80 is a stationary unit, whereas the MICRO and MINI models are portable.

What does a coaxial layout mean?

In the EP series, the motor and pump unit are arranged on a single axis. The motor shaft drives the impeller directly, without a belt, gearbox or coupling.

First consequence: the unit is shorter and lighter than the belt-driven version. By way of comparison, the GR MINOR 40 with a belt weighs from 36 kg, whilst the EP MINOR 40 weighs 20 kg, with the same hydraulic size.

Second consequence: fewer components requiring maintenance. There is no belt to tension or replace, and there are no pulleys.

Consequence three: the speed is set by the motor. The data sheet shows discrete values ranging from 470 to 1,400 rpm. The feed rate is selected at the time of configuration by choosing the motor, and cannot be adjusted during operation. If smooth speed control is required, models with a frequency converter should be selected.

Power supply: 230 V, 400 V or 12/24 V DC

The EP series is the only one in the range where the manufacturer’s specifications list three power supply types: single-phase, three-phase and 12 or 24 V DC.

The DC version is available for the MICRO, MINI and MIDEX models. It is designed to be powered by an on-board electrical system: a boat, a car, a mobile platform or a battery-powered trolley. Where neither 230 V nor 400 V is available, this is the only option within the LIVERANI electric range.

The single-phase version is suitable for small sizes in workshops without a three-phase supply. The three-phase version is fitted to the MAJOR 60 and MAXI 80, where the motor power reaches 3.5 kW.

The LIVERANI EP pump, amongst other series in the range

EP models are used when a simple, direct drive and precise sizing are required: the six variants offer the finest pitch in the range. GR — when higher pressure or a mobile trolley is required. INV BS and MINIVERTER — when the feed needs to be adjusted during operation. MID — when there is no electricity on site, but there is a hydraulic system.

The rest of the series in this collection: SP — a shaft without a drive for the customer’s motor, RID — gear motor, VA / INV — a mechanical variator or converter, ALL IN ONE — an inverter-type speed variator with a magnetic flow meter and a touchscreen panel.

How to choose a LIVERANI EP pump at Steiner Ukraine

Seven pieces of information are required for selection: the required flow rate in litres per hour, the head or pipeline resistance in metres, the name of the product, its viscosity and temperature, the presence and size of any solid particles, the type and size of the connection, and the steel grade of the casing.

The power supply available on site is specified separately: 230 V, 400 V or a 12 V or 24 V on-board system. For the EP, this determines both the motor size and type.

Steiner Ukraine supplies LIVERANI equipment together with design calculations, complete sets and spare parts, including impellers made from various elastomers. The scope is described in the section services. Industrial pumps — in the section industrial pumps, equipment for food production — in in a separate section. Sector-specific recruitment — in sector-specific solutions. The technical specifications of the original source are published at the LIVERANI website.

Frequently Asked Questions

How many sizes are there in the LIVERANI EP range?
Six: MICRO 3/8″, MINI 3/4″, MIDEX 1″1/4, MINOR 40, MAJOR 60 and MAXI 80. This is the widest range in the LIVERANI impeller pump family.

What does ‘coaxial layout’ mean?
The motor and the pump unit are arranged on the same axis. The motor shaft drives the impeller directly, without a belt, gearbox or coupling.

What power supply options are available?
Single-phase, three-phase or 12 or 24 V DC. DC versions are available for the MICRO, MINI and MIDEX models.

Can the flow be adjusted?
The speed is determined by the motor and selected at the time of specification. The data sheet shows values ranging from 470 to 1,400 rpm. For smooth speed control, models fitted with a frequency converter are used.

How much does the pump weigh?
From 7 kg in the MICRO version to 68 kg in the MAXI 80 version.

Is it possible to pump liquids containing solid particles?
Yes. A flexible impeller allows solid particles in suspension to pass through without grinding them down. The permissible particle size is determined when selecting the impeller based on its size and material.

Is the pump self-priming?
Yes, up to 6 m. The pump primes the suction line automatically, without the need for manual priming.

Is it safe to run the pump dry?
Prolonged operation without fluid in the housing is not permitted. The flexible blades come into contact with the housing wall and are damaged by dry friction.

What are the maximum viscosity and temperature?
Up to 50,000 cP and up to +100 °C for the LIVERANI range of impeller pumps.

How much does a LIVERANI EP pump cost?
The price depends on the size, power supply type, motor power, steel grade of the casing, impeller material and connection type. Please send us the flow rate, head, product name and available power supply — we will prepare a quotation.