Self-priming centrifugal pumps – FreFlow series

FreFlow series. Self-priming centrifugal pumps

Self-priming centrifugal pumps – FreFlow series

FreFlow pumps are self-priming centrifugal pumps suitable for handling contaminated and low-viscosity liquids. Its innovative design, eliminating the need for a non-return valve, results in less maintenance. Oil bath lubrication on the atmospheric side of the mechanical seal prevents dry running during the self priming period. The capability of handling gaseous liquids ensures smooth and continuous operation.

The basic pump is available in cast iron, bronze or stainless steel. Thanks to its high-quality material, the stainless steel version is excellent for handling aggressive, corrosive and environmentally harmful liquids.

Typical industries are: chemical, petro-chemical and pharmaceutical industry, oil, gas and electricity generation, paper, plastic, paint and metal finishing industry and shipbuilding. The combination of its easy maintenance and operation, make the FreFlow a suitable pumping solution for a large number of applications.

Petrochemical
Chemical
Industrial Water
General Industry
Shipbuilding

Excellent self-priming ability
No non-return valve required in inlet
Oil bath for the mechanical seal
Ideal for handling contaminated liquids
Outstanding qualities for liquids containing gas or air
Easy maintenance (back pull-out)
Easy operation
Mechanical seals to EN12756 (DIN24960)

BROCHURE

Technical data

The FreFlow range consists of 19 pumps with connections from 32 mm to 150 mm, with a capacity of up to 300 m3/h and a delivery head of up to 70 meters. The self-priming ability is 7 meters. The maximum system pressure is 9 bar and the pumps can transport liquids with a viscosity of max 150 mPa.s. The pumps in the FreFlow programme offer flexible operation thanks to the different drive possibilities

FRE	Pumps with bearing bracket
FREF	Pumps coupled to a flange motor on extended shaft
FRES:	Pumps coupled to IEC standard motor
FREM	Pumps coupled to a petrol or diesel engine

Technical data

FRE	Pumps with bearing bracket
FREF	Pumps coupled to a flange motor on extended shaft
FRES:	Pumps coupled to IEC standard motor
FREM	Pumps coupled to a petrol or diesel engine

We provide a wide selection of equipment used across all industry sectors, both in small and large enterprises. We offer professional devices for applications in:

hygienic sectors (beverages, confectionery, pharmaceuticals and cosmetics, fish processing, dairy, brewing, oils, fats, processed foods, and others),
industrial sectors (wastewater treatment plants, paper industry, surface treatment, chemical processes, mechanical industry, paint and coatings industry, leather tanning).

The bitumen industry focuses on the production, processing, and application of bitumen – including the manufacture of asphalt emulsions, modified bitumens, waterproofing masses, and more. Due to the nature of the material, the bitumen industry requires advanced technologies and specialized equipment to handle substances with high viscosity and extreme temperatures.

We offer a wide range of equipment, such as pumps and mixers, that enhance the efficiency and quality of production processes in the bitumen industry. By applying modern Tapflo solutions, it is possible to achieve bitumen products of the highest quality that meet the strict market requirements. By choosing our solutions, you can significantly increase the efficiency and safety of processes in your production facility.

The chemical industry is a very large and important sector of the economy, encompassing all types of enterprises that manufacture their products using chemicals.

At Tapflo, we provide modern industrial solutions that streamline manufacturing processes and improve chemical production efficiency. We understand that handling chemicals requires the use of the highest quality equipment, and that is exactly what we deliver. Our motorers ensure the selection of devices suitable for every type of chemical, including pumps, valves, mixers, and filters tailored to the specific medium. The highest quality of Tapflo equipment guarantees safety, accuracy, and optimization of production costs.

The household chemical manufacturing industry must continuously evolve to meet market demands and environmental standards by implementing modern technologies. The production process in the chemical industry, including cleaning agents, detergents, bleaches, and other products, is complex. Every manufacturer must use precise machinery to ensure quality, safety, and the highest efficiency of their installations.

We offer a range of equipment adapted to the challenging conditions of chemical production. Using Tapflo machines ensures efficient, safe, and environmentally friendly manufacturing.

We provide a wide range of equipment used across all industry sectors, both in small and large enterprises. We offer professional devices for applications in:

hygienic industries (beverages, confectionery, pharmaceuticals and cosmetics, fish processing, dairy, brewing, oils, fats, processed food, and others),
industrial sectors (wastewater treatment plants, paper industry, surface treatment, chemical processes, mechanical industry, paint and coatings industry, tanning).

The electroplating industry plays a key role in the production of various metal components. Electroplating processes require the use of equipment designed to operate in aggressive environments – with chemicals, acids, or alkalis.

Our offer includes electroplating pumps, valves, filters, and mixers, whose design and reliability enable the production of the highest quality metal coatings. We provide equipment used in industries such as metallurgy, electroplating, and paint finishing.

The cosmetics industry is a dynamically growing sector where production quality and efficiency are of paramount importance. Achieving these goals requires modern and reliable equipment such as pumps, mixers, valves, and homogenizers.

Thanks to the variety of available products, Tapflo can tailor flow solutions to the specific needs of customers in the cosmetics industry. Our technologically advanced machines play a fundamental role in production processes, ensuring high quality of cosmetic products. We guarantee precision, efficiency, and safety, which translate into superior product quality and consumer satisfaction.

We provide a wide range of equipment used across all branches of industry, both in small and large enterprises. We offer professional devices for applications in:

hygienic sectors (beverages, confectionery, pharmaceuticals and cosmetics, fish processing, dairy, brewing, oils, fats, processed food, and others),
industrial sectors (wastewater treatment plants, paper industry, surface treatment, chemical processes, mechanical industry, paint and coatings industry, tanning industry).

We provide a wide selection of equipment used across all branches of industry, both in small and large enterprises. We offer professional devices for applications in:

hygienic sectors (beverages, confectionery, pharmaceuticals and cosmetics, fish processing, dairy, brewing, oils, fats, processed foods, and others),
industrial sectors (wastewater treatment plants, paper industry, surface treatment, chemical processes, mechanical industry, paint and coatings industry, tanning industry).

Pumps and equipment for food production play a key role in ensuring efficiency, hygiene, and safety of manufacturing processes.

Investing in high-quality equipment pays off by improving product quality, increasing productivity, and reducing operational costs. By choosing the right food-grade pumps, mixers, or homogenizers from Tapflo, food industry companies can meet market challenges and deliver products of the highest quality to consumers. Every Tapflo device is characterized by compliance with strict sanitary standards such as EHEDG, 3-A, FDA, and USP VI.

The pet food industry is a dynamic segment of the food sector, specializing in the manufacturing of balanced nutrition for dogs, cats, and other domestic and farm animals. Tapflo supplies modern equipment for pet food production facilities, ensuring the highest levels of hygiene and operational reliability.

Our solutions handle a wide range of media consistencies – from liquid additives to dense feed masses – regardless of temperature or viscosity. Tapflo devices are designed for easy cleaning using CIP/SIP methods and comply with FDA and EHEDG standards. As a result, pet food production runs smoothly, safely, and with consistently high product quality.

Industry Sector

We present to you the full range of products we supply. The offerings here are aimed at users of various industrial applications. We invite you to explore our extensive portfolio, which includes pumps, heat exchangers, homogenizers, hygienic valves, filters, and a wide array of other solutions.

We provide comprehensive, professional, and above all reliable diaphragm pumps, centrifugal pumps, and other equipment that ensure safe and hassle-free liquid transport. Our forty years of experience and a qualified team of top specialists guarantee that the industrial equipment we supply successfully meets the expectations of even the most demanding clients. Our diaphragm, centrifugal, vortex, gear, dosing pumps, and many others find applications across various industry sectors.

One of the most universal pumps available on the market, compressed air-operated diaphragm pumps can be used in a wide range of applications to transfer almost any medium. Their simple operating principle and robust, compact design enable these pumps to meet the high demands of various industries.

Trouble-free dry running. Smooth flow control. Self-priming up to 5 m.
No electrical installation required. Few components. Compact and robust design. Oil-free air distributor.
Compressed air supply.

Due to changes in the way we think about our impact on the environment, we are proud to present EODD – Electric Diaphragm Pumps. The product follows a modern approach but is still based on the original diaphragm pump technology, which has proven to be very effective. We consulted with our customers, who expressed a need for the features and benefits of a traditional diaphragm pump, but with the added advantage of lower operating costs. The pump is powered by a high-efficiency electric motor (IE3 class) and there is no chance of hydraulic fluid leakage, as the pump simply does not need it.

A Filter Press Pump is a specialized type of pump designed to fill a filter press with a slurry or suspension from an external storage or disposal facility, typically used in solid-liquid separation processes, typically at high pressures reaching 24 bar.

Tapflo Filter Press Pumps are known for their robust construction, reliable performance, and ability to handle high-pressure applications with ease. They are equipped with a non-return valve to prevent backflow and are available in various materials to suit different process requirements. Air operated filter press pumps have the unique feature that when the filter press is full, they stop and no additional safety systems are required to shut down the pump (like in case of electrically operated filter press pumps).

Tapflo offers a wide range of centrifugal pumps made of stainless steel and PP and PVDF plastics, including horizontal or vertical pumps, as well as magnetically driven pumps. Available in hygienic and industrial designs, Tapflo centrifugal pumps are among the most versatile pumps currently available on the market. Selected pumps can be designed for safe contact with food and are also available in ATEX explosion-proof versions.

Hose pump is a type of positive displacement pump that can be used to pump a wide variety of liquids. Tapflo industrial hose pumps use the principle of peristalsis, whereby the deformation and compression of a soft elastomer hose allows the liquid to pass through the device.

Pumps of this type are the best solution for delicate, corrosive, abrasive or dry media, including those containing solid particles. The special design, in which only the hose comes into contact with the pumped product, reduces operating costs by reducing wear on internal components and allows operation in very demanding conditions.

Tapflo submersible pumps are designed for a wide range of applications. We offer pumps for draining flat surfaces, sewage, spring water, rainwater and groundwater, as well as sludge and sediments containing solid particles. All our submersible pumps provide the performance, reliability and ease of use you need when pumping liquids consisting mainly of water. A submersible pump can be used as a permanent solution for draining water when a certain liquid level is reached, or as a mobile and easy-to-use drainage pump when unwanted water needs to be removed.

Tapflo gear pumps are characterized by their robust construction, ensuring high durability and extended service life. They feature a well-thought-out design with a unique tooth profile on the drive gear, reduced energy consumption with high efficiency, and smooth, pulsation-free media transfer.

Modularity allows for interchangeability of parts between different models within each series, as well as the possibility of dismantling the pumps from the front or rear. This also contributes to ease of maintenance and reduced downtime.

A wide selection of material designs, seal types (packing, mechanical, or lip seals), and additional options such as

The original design of the rotary lobe pump goes back to the early 30’s and has since then been further developed and improved. Rotary lobe pumps are easy to clean and have gentle product handling characteristics. They contain few cavities, which reduces the risk of bacterial growth and makes them particularly suitable for the transport of sensitive fluids – from glue to whole strawberries.

Applications: Food and Beverages, Pharmaceutical, Chemical, Cosmetics, Pulp & paper.

The series of dosing pumps includes: the range of dosing pumps includes mechanical diaphragm pumps, hydraulic diaphragm pumps, electromagnetic diaphragm pumps and piston pumps. Pumps from the following series can be used for precise dosing of various types of compounds needed to carry out chemical reactions. Their design allows them to work with high-pressure systems, while enabling very precise dosing. This series of pumps is ideal for combining into multi-head systems, where each head can pump a different medium and have an independent flow rate setting.

Mechanical diaphragm dosing pumps - D Series

Eccentric screw pumps for liquids with high viscosity or fragile content. With almost pulsation-free flow up to 110 m3 /h and pressure up to 48 bar.

The pump provides almost a pulsation-free flow, can handle high pressures and is at the same time very gentle on the liquid and its contents with excellent suction capabilities. Model DX complies with strict hygiene requirements in the food and pharmaceutical industry.

Electric or air operated drum and container pumps are lightweight, handy and very powerful devices for an economical and safe filling and transferring of thin to medium viscous media, neutral or aggressive, non-flammable or flammable substances out of drums and containers.

Drum pumps have a very wide range of applications in the food, chemical, cosmetic, electroplating, petrochemical, and machine production industries.

IBC containers and drums are widely used in industry – they are the simplest way to store and transport various liquids. Since many of these liquids must be mixed before use in the process, we offer a range of dedicated industrial mixers. These are simple, yet robust and safe to operate, high-quality devices. Designed and configured for common industrial applications, they enable mixing directly in the IBC container or drum. Thanks to the use of mixers, intermediate tanks can be omitted and the process becomes faster and more economical.

Tapflo hygienic valves are high-quality components made of forged 304L and 316L stainless steel. All valves in our range are serialised to ensure full traceability, even 304L valves, and are manufactured in a TÜV NORD ISO 9001:2015 approved production process. The valves are 3A and FDA certified for use in the food and dairy industries. They also meet the pharmaceutical industry’s requirements for USP Class VI elastomers.

Our offer is complemented by pump units, industrial trucks, acoustic and thermal shields, and SKID technological systems. Bearing in mind the diverse needs of our customers, we offer not only a standard range of products, but also customised solutions tailored to your requirements. Our range includes pump units of various power ratings and sizes. We are able to supply motors and gear motors for every standard pump available in our offer. If you cannot find a solution that meets your expectations in our offer, we will be happy to design and implement a customised solution.

Pumps

Other Equipment

We provide comprehensive solutions for the chemical, food, pharmaceutical, cosmetic, and paper sectors. Our products are fully safe and environmentally friendly, and they meet the strict quality requirements imposed by both national and international standards and directives. For this reason, we collaborate only with partners who share similar values in their operations. Among our partners is Doseuro, offering dosing pumps in three main versions: plunger pumps, hydraulic diaphragm pumps, and mechanical diaphragm pumps. A wide selection of specialized pumps is also made possible through cooperation with companies such as Jessberger, Hydra-Cell, CDR, SPX FLOW Johnson Pump, Steinle Industriepumpen GmbH, PCM, and APV.

Pomac Pumps are high-quality, hygienic pumps widely used across industries such as food & beverage, pharmaceuticals, cosmetics, and chemicals. Designed in the Netherlands, these pumps are known for their reliability, durability, and efficient handling of a wide range of liquids — from thin, water-like fluids to highly viscous products. With a focus on hygienic design, easy maintenance, and energy efficiency, Pomac pumps provide a versatile solution for processes that demand precision, cleanliness, and consistent performance.

The key elements that have contributed to the international success of Salvatore Robuschi, present on the market since 1935, are customer-oriented design and the technical and commercial knowledge of its employees. The main goal of Salvatore Robuschi is to become a reference brand for process pumps, designing “tailor-made” solutions for every need. The offer includes centrifugal pumps with closed or open impeller according to ISO 5199-2858, with vortex impeller with large free passage, as well as with channel impeller (closed and open). All these pumps are available in horizontal and vertical configuration.

Cipriani Harrison Valves has been expanding its specialist motorering, product and process knowledge for over 40 years to meet the most demanding customer needs for hygienic industrial valves. Cipriani Harrison Valves is an ISO 9001:2015 certified company, certified by TÜV NORD.

Adhering to international standards such as ASME BPE, EHEDG and 3A, Cipriani Harrison Valves successfully supplies the highest quality hygienic valves and components to the food, dairy, wine, brewing, cosmetics, biopharmaceutical and other related industries.

In post-war Japan, the infrastructure for water supply and treatment plants was underdeveloped, and poor-quality drinking water spread many infectious diseases. Toshio Yamada wanted to change this, so in 1965 he began producing equipment for chlorine disinfection at his home in Ikuno-cho, Asago City, Japan. This became the starting point for what would later become the pump manufacturer Tacmina. In 1965, the first dosing pump, the “N-Feeder S-Type,” was launched, and today Tacmina is a well-known global supplier of dosing pumps and pulsation-free diaphragm pumps of the highest quality.

The Doseuro brand combines solid technical knowledge, gained through many years of experience in the dosing field, with a commercial understanding of the changes in this field and particular attention to our customers’ requirements.

Doseuro pumps are distinguished by high reliability achieved through continuous product development, updating production techniques, quality control and rigorous testing at all stages of production. Each metering pump model has been carefully designed, built and tested to ensure long life and usability.

The history of CDR dates back to the pre-World War II era. In the early 1950s, Ferdinando Abordi acquired “ARI Pompe” – a family business whose production was based on cast iron pumps for domestic, agricultural and industrial use. In the mid-1960s, the evolving market demanded a new and sophisticated product, and CDR transformed to fulfill special customer orders. The production of stainless steel and special alloy pumps was started. Subsequently, the production of horizontal and vertical centrifugal pumps, compliant with DIN 24256 standards for the chemical industry, was implemented.

Jessberger is a family-owned company based in Ottobrunn near Munich. The company specializes in the production of electric and pneumatic drum and container pumps, vertical and horizontal screw pumps, dosing pumps for high-viscosity media, hand pumps and a wide range of accessories such as flow meters, nozzles, etc. Jessberger’s unparalleled reputation in the field of drum pumps is the result of personalized and professional support and maximum flexibility in all areas and direct contact with customers. Jessberger attaches the greatest importance to strict quality control.

Nova Rotors is an Italian manufacturer specializing in progressive cavity pumps, twin-screw pumps, and centrifugal pumps. Founded in 1990, the company has built a strong reputation for innovation, reliability, and customization, offering solutions for industries such as wastewater treatment, food & beverage, chemicals, and pharmaceuticals. With a focus on efficiency, durability, and hygienic design, Nova Rotors pumps are trusted worldwide for handling a wide variety of fluids — from low-viscosity liquids to highly viscous and abrasive products.

EMEC is an Italian manufacturer of dosing and control systems, specializing in high-quality solenoid and motor-driven dosing pumps, controllers, and accessories for water treatment and industrial applications. Founded in 1982, EMEC has become a trusted global supplier known for precision, reliability, and innovation in chemical dosing technologies. With a strong focus on research and development, EMEC provides tailored solutions for sectors such as water treatment, swimming pools, agriculture, and industrial processes.

Partners

We specialize in designing unconventional solutions tailored to the most demanding needs of our clients. We do this by introducing additional functionalities to the offered devices, increasing their mobility, adjusting their dimensions or introducing advanced safety and control systems. We offer all solutions that increase the comfort and safety of work, such as stationary and mobile systems for unloading media from tanks, barrels, IBC containers, etc.

Our mission is to provide technical solutions that guarantee proper functionality and stable operation in any environment.

Unloading drums filled with highly viscous liquids has never been easier. Our High Viscosity System (HVS) is designed to simplify this task, offering automated efficiency and exceptional product-saving capabilities. With HVS, you’ll experience a smooth unloading process, allowing you to focus on other critical tasks while achieving up to a 99% product removal rate. Say hello to effortless drum unloading with HVS.

Simplify the unloading of highly viscous liquids with our High Viscosity System Quattro-type (HVS Quattro). It is designed for high-volume applications where multiple drums (typically four) are stored on pallets. The HVS Quattro allows you to switch between the drums easily, thanks to our revolutionary articulated arm. Experience an impressive product removal rate of up to 99% which will reduce your production costs.

Unloading drums containing highly viscous liquids has become more efficient and precise with our High Viscosity System Flexi-type (HVS Flexi). This system simplifies the task, providing automation and effective product-saving features. The HVS Flexi ensures a smooth unloading experience, allowing you to concentrate on other important tasks while achieving an impressive product removal rate of up to 99%. It is suitable for applications with low to moderate volumes, such as supplying filling or packing lines directly.

Experience efficient and safe tank emptying operations with our flexible Unloading System. Designed to handle IBCs (Intermediate Bulk Containers), Mauser, Goodpack or Bag-in-Box® containers, totes, drums, barrels, and various other storage vessels, this system efficiently manages both low and high-viscosity products across a wide range of industries. Using a reliable suction lance mechanism, its innovative design and customizable control system ensure optimal performance while maintaining the highest industrial safety standards.

SLES* is an organic chemical compound with excellent cleaning and foaming properties. For this reason, it is commonly used in the production of cleaning agents, soaps, shampoos, and household chemicals. SLES is typically supplied to manufacturers of these liquids at a 70% concentration, and due to its physical properties, such a concentrated solution is difficult to process and must be diluted below 27% before being used in the production line. Our system enables continuous dilution with maximum efficiency and safety, reducing costs for the company in the long term.

Achieving precise mixing of ingredients to obtain the desired final product—while maintaining strict proportions, accuracy, and sequence—poses a major challenge for industrial manufacturers. The mixer was created specifically for this purpose. It is based on a system for diluting concentrated ingredients such as SLES. However, it has been designed in a modular way, allowing us to easily configure the system to meet actual production needs. The ingredients of the final product can be drawn from various types of tanks.

Precise and repeatable filling operations with our versatile container filler. Designed for applications requiring high accuracy and compatibility with various containers and products, from small-volume containers to large industrial drums. Filling accuracy below 0.1% ensures optimal production line performance while maintaining the highest industrial and sanitary standards. Suitable for both high- and low-viscosity products.

Responding to the individual needs of users, Tapflo offers the delivery of compact, automated process systems on a “turnkey” basis. Every demand for a non-standard pumping system is an opportunity for us to create a unique, tailor-made SKID system. Thanks to our extensive design and manufacturing capabilities, we provide solutions developed with specific functionality in mind. We offer virtually unlimited possibilities for the development of pumping units, both in terms of mechanics and automation.

Tapflo presents a series of chemical unloading systems designed for every branch of industry where liquids need to be stored, transferred, and dosed. Our solution, based on the use of a diaphragm pump, is suitable for handling viscous liquids, chemically aggressive substances, as well as those containing solid particles.

Several tank sizes can be combined with pumps in various configurations. Additional options allow the system to be tailored to specific needs. In this way, we have created the simplest and most versatile pumping solutions on the market.

saThe use of protection systems ensures not only efficient but also safe operation of diaphragm, lobe, gear, screw, and centrifugal pumps. Protection systems detect hazardous situations and respond immediately, for example by automatically shutting down the device. The pump protection solutions offered by Tapflo operate based on dedicated sensors. These include media presence sensors such as optical indicators, as well as tuning fork and capacitive sensors designed to detect the presence of a medium or to monitor its level in tanks or pipelines.

Tapflo presents a series of hygienic covers designed specifically for diaphragm pump users. The stainless steel housing is durable and sealed, effectively isolating the pump from its surroundings. Filled with a dedicated insulation mat, the hygienic covers are an ideal solution for acoustic or thermal separation of the pump. Tapflo industrial covers combine user-friendly design with high-quality materials. Built to last, they will serve reliably for years in nearly any application.

System type

Self-priming centrifugal pumps – FreFlow series

Technical data

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