September 20, 2017

Sorensen Systems Designs Aerospace Fluid Control Test Stand

By Mike Gardella
VP Engineering and Manufacturing

One of the case studies I’d like to share with you this month is when Sorensen Systems partnered with a well-known instrument and testing controls manufacturer to help design and build specialized testing equipment for a cooling pump installation intended for high altitude aircraft applications. It is not sufficient to test sample batches of manufactured parts in a critical aerospace engineering environment, especially with sophisticated components. Every single part must receive a full test to certify its fitness in this application.

The test stand for this project included LabVIEW software and electronic devices that were integrated into the structural aluminum machine frame. It was designed to simulate the full range of environmental conditions that would be encountered at high altitudes and under adverse conditions. Critical machine components included flow meters, pressure gauges, heaters, proportional 3-way valves, high watt power supply and a custom fluid tank.

Sorensen Systems worked closely with software and electronic specialists, designed and installed the overall piping and fluid control system, and designed safety enclosures for the operators of the equipment.

For more information about this project, view the case study. If you have any questions or inquiries, please contact me at 508-351-1814 or by email (

August 02, 2017

Conduit Energy Recovery Helps Westfield MA Pipeline Project

Kevin McKnerney

Sales Engineer

In our April 2017 blog post, we mention that we have a lot of recent history helping local utilities using conduit energy recovery systems. Although the conversion of water power to electricity is common, what is new in these recent applications is the need to retrofit existing system components with new systems that allow the water to act as means in generating electricity.
In 2011, tropical storm Irene collapsed the Granville spillway and dam which caused $3 Million worth of damage. Replacing the pipeline and installing a Hydroturbine system was another $3 Million. The newspapers reported that the water rates for Westfield, MA were predicted to rise 50-70% in the following five years as all estimated costs could reach $10 Million in total. Efforts to reducing operating costs for the operation of water treatment plants through conduit energy recovery became extremely important.

Sorensen Systems was called upon to be involved with the Granville Pipeline Project which was established to replace the aging existing pipeline and include the installation of a new Hydroturbine producing 37 kW which was roughly the plant’s power consumption. The components of the system included a skid mounted turbine/generator, a hydraulically operated turbine isolation valve, a hydraulic power unit, and a turbine generator control panel. The system has a remote OIT display panel located in the Hyrdroturbine room.

Sorensen Systems completed the design, installation, testing, and start-up of the hydropower turbine and generator system. To read more about conduit energy recovery and the Granville Pipeline Project, visit our webpage. If you have any questions or inquiries, please contact me at 508-351-1844 or by email. (

June 21, 2017

The Hope Group's One-Click eConfigurator Added To My "Helpful Tools" Page

One of the features on our website that I like to share with people is a page that contains helpful conversion tools. What I have done is taken all of my favorite online conversion calculators and consolidated them on this one page. So, instead of having over twenty links saved in my “favorites”, I have one link saved that showcases them all. (View Mike's Helpful Tools Page)

Although all of the links are helpful, the most recent link I have added is The Hope Group’s One-Click eConfigurator page. This page allows you to identify the component for your application and directs you to a configurator to help you build the correct part you need. Once you configure the component, you can download a CAD file and have someone generate a quote for you based on your configuration. This tool is powered by Parker Hannifin, but The Hope Group’s page has been designed to consolidate a list of popular components, which means, you are basically “One-Click” away from configuring your part.

Save this page to your “favorites”, like I did, for quick access to the conversion tools. I have also listed some helpful catalogs in the right-hand column. If you have any questions, feel free to contact me at 508-351-1814 or by email (

View Mike's list of helpful
conversion tools and more!

Configure a component
for your application.

April 19, 2017

Conduit Energy Recovery Has Implications for Municipalities

By Mike Gardella
VP Engineering and Manufacturing

Local municipalities have an increasing interest in looking for ways to save money – and if saving energy is one way to do it – all the better. At Sorensen Systems, a subsidiary of THG Corporation, we have a lot of recent history helping communicates accomplish savings through conservation. From Keene, NH, to Boston, MA, we have used conduit energy recovery systems for local utilities.

With the recent acquisition of Connecticut Fluid Power of North Haven, Connecticut, Sorensen Systems has an increased opportunity to assist local Connecticut communicates with the same sort of innovative energy recovery systems. During the upcoming Open House and Technology Seminar event on May 10, 2017 at The Hope Group Parker Store, there will be some displays in the Trade Show that demonstrate these money and energy savings strategies. Some of our sales engineers will be on hand to answer questions about this might work for those responsible for generating clean water and electricity.

You can learn more about the Technology Seminars and the Open House by visiting the website.

March 24, 2017

Power Units & Valve Stands are Pretty in Pink

Paul Daniels

Sales Engineer

Have I told you about the hydraulic power units and valve stands that we had to paint pink?

A steel mill in Argentina was about to build its largest combination and rod mill for the production of 500,000 tons per year. The new high-efficiency mill was designed to roll Special Bar Quality products for high-end industrial applications. The combination mill would produce products that range in size from 5.0- to 88.9-mm round, as well as, squares, hexagons, flats and rebar. We were hired to build the HPU’s, manifolds, and lubrication systems.

Unlike other power unit installations we’ve done over the years, this application had to be painted in accordance with international color standards known as RAL. It turns out, the reason for the odd color is for plant safety. The machinery in the plant is color coded to assist emergency personnel in identifying the types of machines during a fire or other event.

The project was a success and I can honestly say, that was the first time we had to order pink paint for the paint shop. Technically the color was called “Heather Violet”, but if you look at the photo below, it is clearly pink. If you would like to read more about this project, check out the entire story on the Sorensen Engineered website.

If you have any questions or inquiries, feel free to contact me at 508-351-1810 or email me. (

February 22, 2017

Chicago's Deep Tunnel Project Completed with the Help of Sorensen Systems

A recent project that we, at Sorensen Systems, were called upon for our engineering and fabrication capabilities was the Chicago Deep Tunnel. This project, also known as the Deep Tunnel Project, was established to decrease flooding in the Chicago area and to reduce other harmful effects of flushing raw sewage into Lake Michigan. The solution involved diverting storm water and sewage into large, deep tunnels and vast holding reservoirs.

Our roll in this project was to engineer and build a hydraulic and automation motion control system to operate a massive water control gate at the 300 foot deep Thornton Quarry Reservoir. The gates regulate the flow of water through large underground tunnels constructed to slowly feed the stored water to the Calumet Treatment Facility before being released into the Cal Sag Channel. The four stainless steel roller gates, manufactured by Steel-Fab, Inc., are powered by Sorensen Systems Hydraulic Power Units.

“We are happy to put our latest engineering marvel to work. The Thornton Composite Reservoir is the world’s largest reservoir and has drawn intrigue from across the world.” – Spokesperson for the MWRD

According to information released by the MWRD, over 500,000 people benefit directly from the protection to over 180,000 homes in the 14 communities to the south of Chicago.

To read more about this project, visit our website page that describes the DeepTunnel job in more detail. If you have any questions or inquiries, feel free to contact me at 508-351-1814 or write me an email (

Chuck Keyes, Project Engineer, looks over specifications during the fabrication
process of the control panels at Sorensen System’s Northborough location.