Diaphragm pumps for spraying machines - Tapflo

10/08/2025

CUSTOMER PROBLEMS AND CHALLENGES

The customer manufactures polyurethane foam spraying machines that rely on pumps powered by compressed air. Each machine requires two pumps to pre-feed key components — isocyanate and polyol — into a high-pressure system.

Initially, plunger pumps were used for this purpose, but their limited service life led to frequent breakdowns and premature failures. This posed a serious challenge, as the machines are produced on a large scale and exported worldwide — making reliability absolutely essential. Any failures can lead to costly complaints and reputational damage.

The customer needed a dependable, long-term partner capable of supplying high-quality pumps in the volumes required for series production. Pricing was also a key factor, as the cost of the pump directly affects the competitiveness of the complete spraying machine.

Solution implemented: Tank-mounted diaphragm pumps

Tapflo diaphragm pumps installed on the customer’s spraying machines

TAPFLO ACTIVITIES

As a manufacturer ourselves, we fully understand the expectations placed on equipment suppliers in the machinery industry — particularly the importance of delivering reliable, high-quality components for integration into finished systems.

For this application, Tapflo diaphragm pumps proved to be an ideal solution. Their construction ensures complete isolation of the pumped media from the external environment — a critical advantage when handling substances that react with moisture in the air and solidify irreversibly.

Another benefit of pneumatic diaphragm pumps is their ability to automatically adjust flow based on the demand of the main high-pressure pump, while maintaining a constant inlet pressure (typically 3–4 bar). This feature makes them especially well-suited for pre-feeding reactive components such as isocyanate and polyol. Based on these characteristics, we recommended the use of Tapflo diaphragm pumps with a versatile design capable of handling both components efficiently.

An added value for the customer was Tapflo’s nationwide service network, ensuring that technical support is available to the end users of the machines whenever needed.

RESULT

The customer appreciates the long service life of the Tapflo diaphragm pumps currently in use and has been equipping their machines with them for over 20 years.

Spray machine equipped with Tapflo diaphragm pumps

CUSTOMER OPINION

I recommend cooperation with Tapflo. Our partnership has significantly improved the reliability and quality of our machines. We began working together in 2003 by integrating Tapflo diaphragm pumps into our equipment. Their design ensures complete isolation of the processed components from external conditions—especially important when handling moisture-sensitive substances that irreversibly solidify upon contact with air. Compared to previously used plunger pumps, Tapflo diaphragm pumps have completely eliminated recurring issues. The sales team provided expert support in selecting the right pump specifications, materials, and construction. While we rarely need post-purchase service, knowing it’s available provides us with the confidence to meet all customer orders on time and to the highest standard.

I fully recommend Tapflo as a trusted and reliable partner. Years of cooperation have proven their commitment to quality, consistency, and professionalism.

Owner

Looking for the right pump for your equipment? Check out Tapflo’s range of diaphragm pumps.

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.

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 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