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The Hope Group

The Hope Group is an authorized full-line Parker distributor featuring hydraulic, pneumatic, fluid connector, and sealing products for OEM and MRO applications.

Sorensen Systems is a designer/builder of custom systems providing clean water, renewable energy sources, and technologically advanced process systems for industry.

Hope Air Systems is an authorized distributor for Kaeser Compressor featuring energy efficient rotary screw compressors as well as a designer/builder of skid-mounted packaged compressed air systems.

Hope Service can dispatch its field service fleet of vehicles and experienced, factory-trained technicians to provide emergency and routine field service to its hydraulic, electrical, and compressed air systems customers.

The Hope Group owns and operates eight Parker Stores at its branch locations providing "while you wait" replacement of hose assemblies and immediate on-hand access to 3,000 Parker fluid connector parts.

The Hope Group provides 24 hour access to $150 million of Parker parts through its eCommerce website,, offering one or two-day shipping of all your hose & fittings, hydraulic, pneumatic, valve, and filtration needs.

iPower Distribution Group of New England provides supply chain consulting and implementation through streamlined procure-to-pay process, vendor managed inventory (VMI), Kanban, and in-plant buyer-planner services.


Sorensen Systems Home › Integrated Systems › PLC-Driven Gate System

Sorensen Teams Up With Steel Fab For San Antonio River Walk Project

The City of San Antonio invested $279 million during the past three years into improvements to its famous tourist attraction – The San Antonio River Walk.

Sorensen Systems and Steel Fab Inc., of Massachusetts teamed up to design, fabricate and install two sets of miter gates for the lock chambers used to raise or lower boats where the river level changes, and a crest gate to provide stable, maintainable flood control. The improvements were part of an expansion that expanded the river 1.3 miles.

PLC Driven Control

Steel Fab was responsible for the manufacture and installation supervision of the gates and Sorensen Systems was responsible for the Hydraulic Power Units to drive the gates and the PLC driven control system to operate the gates. The two companies have worked together on similar projects in the past, including the 96 foot crest gate on the Wachusett River in Clinton, MA. The reservoir is a primary source of drinking water for Boston.

During installation and start-up, Sorensen Systems and Steel Fab Inc., each had technicians on site working jointly to ensure a smooth transition from construction to functional tourist transportation. The responsibilities included the verification of proper gate sealing, smooth gate movement, correct operational sequence in addition to verifying gate opening and closing speeds and proper water transfer rates.

Lock System Design

Due to the severe difference in water elevation, a lock system was required in the design. The control system allows the tour boats to enter and leave the dam system and is responsible for raising and lowering water levels smoothly and safely. The remote operator system built by Sorensen Systems provides the tour boat operators with a graphical view of the operational sequence of the gates via a touch screen located in the operator's booth.

The historic San Antonio River has long served as the heart of the city, and each year the world-renowned River Walk draws millions of visitors. Originally built in 1938, the new expansion is part of a process to increase recreational and economic development while reclaiming the river's natural meanders and appearance.

Sorensen Systems is the engineering and fabrication arm of The Hope Group, a division of KLX Inc. The company operates from a headquarters in Northborough MA and has eight branch locations in five of the six New England states. The company operates from an ISO 9001 certified facility and has ITAR certification through its affiliation with The Hope Group.



Sorensen Systems has provided gate & valve operating systems for municipal water and waste-water authorities worldwide.

A control system was required for the setting and monitoring of water levels and new locks for the famous San Antonio River Walk excursion boat tourist attraction. This involved design, construction and start-up of three power units and two remote operator panels for controlling the lock system.

Sorensen Systems and Steel Fab worked together to design, build and install two sets of miter gates and a crest gate at the San Antonio River Walk.

The historic River Walk was originally built in 1938 and as part of a major $279 million improvement project in San Antonio, the tourist river boat canal was extended 1.3 miles.

Sorensen Systems was responsible for the hydraulic power units (3) to drive the gates and the PLC driven control system to operate the gates.


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The Hope Group, a division of KLX Inc. | 70 Bearfoot Road, Northborough, MA 01532

Phone: 508-393-7660 | Fax: 508-393-8203 | Email

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