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Customers rely on us to help select components, design complex systems, to manufacture, install, and maintain machinery and equipment. We offer our best advice through our blogs.

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.


Hope Air Systems Home › Buy From Us › Compressed Air Dryers › Refrigerated Air Dryers
Our Best Advice

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Donna-Tibbetts   One of Our Stores is Open 24 Hours a Day!
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Operations & Service Mgr

doug-markham-ipower-new-england   When Should Materials be Stocked at Point of Use?
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President, iPower NE


Refrigerated Air Dryers

Hope Air Systems distributes Kaeser's dual control and demand manager series refrigerated dryers. Depending on the application, the compressed air demand can remain steady or fluctuate. To meet these varying needs, Kaeser offers two refrigerated dryers:

  • Dual Control
  • Demand Manager

The dual control model is ideally suited for applications with varying aid demands, while the demand manager model is designed to efficiently handle a constant and steady air demand.

Energy Efficient Design

All Kaeser compressed air dryer components are designed for maximum efficiency and performance. Some important features include:

  • On/off load digital scroll refrigeration compressor
    • Both dryer series are equipped with energy efficient refrigeration scroll compressors. With fewer moving parts and no valves, scroll compressors are very reliable, durable and maintenance friendly. The Dual Control series is supplied with a "digital" scroll compressor featuring unloading capability during low air demand. This results in energy savings of up to 91 percent.

  • Low pressure drop heat exchanger
    • Kaeser's traditional, non-fouling, smooth-tube, copper heat exchangers provide stable pressure dewpoints. No prefiltration required for low total system pressure drop. An advanced multi tube-in-tube design offers three times more surface than other designs, which enhances the heat transfer rate.

  • Low pressure drop filtered separators
    • Kaeser's standard filter separator with filter monitor removes bulk liquids and particulates to three microns. Two stainless steel orifice tubes provide 10-micron mechanical separation. Then, an in-depth fiber media captures solid and liquid particles to three microns in size.

  • Microprocessor controlled filter monitor
    • A microprocessor provides detailed information for optimal filter change intervals. The filter monitor is standard with Kaeser's filter and with the optional KOR filter.

  • No air loss drains
    • Easily accessible "no air loss" electronic demand drains with time delay feature reduce cycle frequency.



Refrigerated Dryers
The Kaeser Refrigerated Dryer is available either as a dual control or demand manager system. The dual control model handles varying demands and the demand manager handles constant and steady air demand.


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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