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The Ultimate in
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The Air-Operated
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At The Heart of Every Process Are Pumps Made With Quality, Experience and Innovation.


When it counts, count on Unibloc®.

Helping you fight downtime and costly rebuilds. Our

precision-engineered, hygienic, food grade positive displacement pumps

take on the toughest sanitary jobs. We design simple, easy-to-clean pumps that keep your operation running.

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Pioneering the One Nut Air-Operated Double-Diaphragm Pump

Reducing downtime through simplified assembly and disassembly, savings through easier maintenance and providing best-in-class CIP performance.

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Hygienic Flow Control Products Customers Rely On

Tackling the toughest jobs with superior products from valves, sight glasses, bubble traps, strainers, oil coolers and more – while ensuring our rigorous quality control.

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Safety Comes Standard

Standard Pump product lines have stood for quality Industrial Drum Pumps that customers rely on in more than 50 countries.

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Unibloc – The Pump Innovation Leader

Unibloc’s precision-engineered positive displacement pumps are your source for the industry’s most demanding applications.

The Interactive Processing Plant

Unibloc Hygienic Technologies Has You Covered from the Loading Dock through Processing

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On the production floor, a 12-inch Flotronic® 3A sanitary slim pump occupies a small footprint as it moves product through the boom arm unloading system to the vessel on the level below. Designed to accommodate clean in place (CIP), the pump’s proprietary One-Nut® technology facilitates easy maintenance for food and pharmaceutical applications with stringent sanitary requirements.

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A 10-inch slim Flotronic® One-Nut® sanitary slim pump offers production flexibility as a mobile solution when mounted on an adjustable rolling cart. Here it was positioned to empty a drum to the vessel below. Equipped with a Guardian alarm system, it supplies instantaneous protection to shut down the pump and contain the media in case a diaphragm ruptures.

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A wall-mounted 10-inch slim Flotronic® pump frees up space for extra production in several ways; the wall mount frees up valuable floor space, its slim profile occupies minimal space, and it allows the plant design to place product pipework against the wall.

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The Flotronic® Barrel Unloading Systems incorporate our unique One-Nut® hygienic/sanitary air-operated double diaphragm (AODD) pump with a barrel unloading skid. It can raise or lower the pump for easy changeouts and enables up to 99% recovery of highly viscous materials at increased flow rates.

View The Flotronic Barrel Unloading System

A premier choice for viscous materials in 3A sanitary applications, our gear pump series features precision engineered spiral cut gears for smooth, efficient and quiet operations. Our patented QuickStrip® Design allows tool-free access to pump heads and seals, reducing downtime and labor required for maintenance and sanitation.

Read How QuickStrip Works

The two vessels contain a Unibloc PD550-Series Rotary Lobe Pump, which sets the industry standard for high performance sanitary pumps. It delivers smooth, low-shear performance that maintains product integrity for a wide range of challenging applications. Pumping pipework travels under the walkway into the back of the filling machine. Unibloc 550 pumps incorporate QuickStrip® technology with patented swing-arm design to cut maintenance time.

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Tank transport professionals count on Unibloc Hygienic Technologies to provide rugged and reliable chemical and food-grade pumps. For over 35 years, Unibloc has refined our Road Tanker pumps to deliver dependability and longevity expected by trusted fleets.​

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Our Hygenitec sanitary drum pumps supplies a safe, efficient and hygienic method to transfer ingredients from drums and intermediate bulk containers (IBCs) to the next processing station.

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We supply the strongest precision-built gear pumps in the industry, with every pump head comprised of solid 316L stainless steel. Here a gear pump is transferring product from the mixing vessel into the hopper. Spiral cut gears offer smooth, quiet operation. Our QuickStrip® design with one-way assembly mitigates damage from foreign materials for longer, durable service.

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Sanitary in-line sight glasses are available in assorted sizes, glass material selection and pressure ranges, to allow safety and security while allowing visual supervision of the active process. Our double nut tensioning securely positions the sight glass without over-tightening.

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In-line L Strainers are precision engineered to pharmaceutical-grade standards for operations that demand high sanitation levels. Available in 316L stainless steel or Hastelloy, in standard sizes or our high-capacity series, for higher flow rates, products with greater viscosities or companies looking for a solution for minimal pressure drop. Strainer customization allows a choice of strainer sizes and mesh options, with custom drain ports.

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Our high-capacity hygienic Y-strainers are available in a wide array of line size options, from 0.75” to 6.0 inches. An in-line system allows workers to clean the strainer without removing it from the piping. Achieve desired versatility and volume with its bi-directional flow. The 360-degree equipment mounting choices help conserve space and allow greater flexibility.

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Safely transfer corrosive chemicals such as those used in CIP and/or COP processes from drums, IBCs and Tote tanks with a Standard Industrial Drum Pump.

View Standard Industrial Drum Pump

Our sanitary pressure relief valve features a straightforward, hygienic SimpleSet design which allows for easy pressure adjustment. Valves are available in a range of sizes and adjustable to pressures ranging from 10-200 psi. CIP design enables easy cleaning.

View Hygenitec Pressure Relief Valves

Unibloc truck pumps offer a reliable, food-grade pump engineered for rigorous daily loading/unloading. Easy to maintain. Industry's most dependable durable O-lip shaft seals prevent leaks.

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Explore Products

Sanitary Positive Displacement Pumps
Hygienic Pumps

Precision-engineered hygienic pumps, AODD pumps, drum pumps and more, from across our Unibloc, Flotronic and Hygenitec brands. All UHT hygienic pump products are built with the highest quality construction for proven reliability in the most demanding environments.

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Industrial Pumps

Unibloc Hygienic Technologies industrial pumps are proven performers for your toughest industrial applications. UHT pumps are precision engineered to fight downtime and costly rebuilds.

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Designed for a variety of applications, we offer complete selection of sanitary valves including pressure relief valves, check valves, and butterfly valves.

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Renowned for their durability and ease of cleaning, we proudly offer the widest selection of hygienic Y strainer and L strainers in both standard and high-capacity configurations.

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Sight Glasses

Sanitary sight glasses, available in various sizes, glass materials and pressure ranges, give you extra efficiency and protection while supervising your active process.

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Bubble Traps

Engineered to remove pockets of air during the critical chromatography processes, our hygienic bubble traps feature an ultra-clean and installation-friendly design. We offer a wide array of sizes and port configurations.

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Oil Coolers

Our innovative oil coolers are designed for safe, easy maintenance and maximum performance during the long haul.

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The air-operated double-diaphragm pump like you’ve never seen before.

While traditional AODD pumps have been on the market for many years, the Flotronic® One-Nut® technology creates an entirely new AODD solution that sets new benchmarks for durability, cleaning, and ease of use.

In-line cleaning in 15 minutes unlike other AODDs that require up to 2 hours per unit.
60% less product remaining in the pump than in traditional AODD pumps, meaning less waste and quicker CIP cycles are possible.
Fully drains at the end of any CIP cycle without any manual intervention.
Fewer parts than a traditional AODD.

You may have tried an AODD. But that’s nothing like a Flotronic AODD+. Learn More

Food & Beverage Buyers Guide

Selecting the right hygienic pump is critical for both compliance as well as maintaining food safety/product integrity. Get our Buyers Guide to see pump selection factors to consider, design specs required and case studies.
Get the Guide

White Paper: Pump Seal Failures 101

Pump seal failures – why do they occur, and how do you prevent them? Pump seals are a critical cause of pump downtime and costly repairs. Our white paper discusses root causes and prevention action steps you can take.
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