Hydro Quip, Inc. (HQI)

Hydro Quip, Inc. (HQI)

Hydro Quip, Inc. (HQI) offers a complete line of high efficiency above-ground and below-ground oil/water separators in a complete range of sizes and options, constructed of carbon steel, stainless steel or fiberglass. The separators will remove essentially all free dispersed non-emulsified oil and settleable solids from the waste water and produce an effluent to meet the most stringent requirements. HQI oil water separators contain a new revolutionary coalescing media that will remove 99.99% of free and dispersed oil droplets 20 micron in size or greater.

Company details

108 Pond Street , Seekonk , MA 02771 USA
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Business Type:
Industry Type:
Water Filtration and Separation
Market Focus:
Internationally (various countries)
Year Founded:


Hydro Quip’s mission is to provide practical, economical and technologically sound solutions for the pretreatment of industrial wastewater and recovery of marketable byproducts.


In 1996, Hydro Quip developed the first oil water separators made out of stainless steel, recognizing its superior performance and durability compared to materials then in widespread use. For over 15 years, we have built our business on Total Quality Management (TQM) principles, deep subject expertise, exceptional service, and being a step ahead of the competition.

Our expanding array of products, solutions, systems, and technology has been available when companies need innovative answers to unprecedented challenges and toughening regulatory standards.

Hydro Quip provides you with a complete solution, not just equipment.

Our team of product managers helps you arrive at the best solution for meeting your project requirements. Whether we are working with end-users or engineers, we take the time to listen and provide thoughtful feedback. We will work directly with you to identify the proper materials, processes, and design configuration for your application.

We have designed and built thousands of water treatment systems, and bring years of relevant expertise to each new challenge. Because of this, Hydro Quip’s products are continually improving to make necessary maintenance easier and less expensive. We are one of the fastest manufacturers in the industry because our expertise is all contained under one roof, and we have mastered the tools and techniques to do the job right. When you work with Hydro Quip, you can avoid the costly delays and markups of typical manufacturing supply chains. Whether you need a custom solution or an off-the-shelf unit right away, Hydro Quip gets it done in less time and saves you money.

Our experience with a variety of wastewater applications and industries helps us understand your priorities. We have designed pre-treatment systems for stormwater, process water and produced water. Once we know which contaminants are prevalent in your waste stream, we can determine the best separation media and equipment configuration for their targeted removal. We have perfected our techniques for durable, long-lasting construction and easy, safe maintenance. We also have the design flexibility to devise a solution for the most challenging site. Additionally, we can provide performance calculations, seismic and structural analysis, and drawings all signed by a registered professional engineer.

We help you lower your operating costs by paying attention to the right design details; the wrong size, material, or media for the job can impact your unit’s performance and efficiency. We consider these factors – and many more – to save your whole operation money in the long run.

Hydro Quip provides you with a complete solution, not just equipment. We quality check all equipment prior to shipment, and we stand behind our work long after the project is done with one of the best warranties in the industry. Hydro Quip products are continually improving to make necessary maintenance easier and less expensive. Our many repeat customers attest to the long-term benefits of working with Hydro Quip.

Our commitment to providing our customers with innovative engineering makes Hydro Quip a name you can trust to deliver superior results.


Not all applications are the same.

Hydro Quip has designed and manufactured thousands of water treatment systems across a range of applications and industries. We have helped our customers achieve more cost-efficient operations and remain in good standing with the marketplace. Our pioneering use of stainless steel fabrication has opened up new possibilities for system design, and our solutions have been proven to perform more efficiently and consistently over time.

We are innovators in the design of oil water separators, clarifiers, emulsion separators, and wash racks. Our units meet European Union performance standard CEN EN-858 – the leading international environmental performance standard - and are built to exacting technical standards (API 421, API 650, UL 1746, UL 142 and UL 58). Our design flexibility allows Hydro Quip systems to function in a variety of challenging locations, helping our customers lower the cost of their treatment operations – and overall investment.

We can build our units out of stainless steel, carbon steel, fiberglass or polypropylene, depending on the application. Learn about the advantages of these materials.

We have perfected pre-treatment systems for stormwater, process water and produced water. Our experienced personnel can select the right materials and approach to help you meet your specific discharge requirements. Our proprietary computer software enables us to quickly select the best approach and size it to your requirements for a quicker project turnaround. Our approach helps you put your operation online sooner – and keeps it running longer.

Finally, our work isn’t complete without carefully considering maintenance and long-term performance. Our units have a lower total cost of ownership over time. We design our units to include features for easy, safe, and cost-effective maintenance that traditional units don’t match. We also back up the quality of our materials and workmanship with some of the best warranties in the industry.

Our design leadership, project management, and commitment to serving our customers make Hydro Quip the clear choice for your next project.