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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 › High Pressure Refrigerated Air Dryers
Our Best Advice

Peter Rhoten   10 Worst Things You Can Do To Your Air Compressor
Peter Rhoten
Hope Air Systems

Ray-McCann   Monitoring Operational Conditions In The Palm Of Your Hand
Ray McCann
Fluid Power Specialist

mike-gardella   Sorensen Systems Designs Aerospace Fluid Control Test Stand
Mike Gardella
VP Engineering & Mfg

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

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


High Pressure Refrigerated Air Dryers

Hope Air Systems distributes Kaeser's HT (high pressure refrigerated dryers), which are specially designed for high pressure applications ranging from 500 psig up to 900 psig. The Kaeser HT models have many built-in features. Smooth surface, self-cleaning, copper heat exchanges resist fouling and maintain high heat transfer ability and low pressure drop for the life of the unit. Plus, they are fully insulated in non-degrading foam to preserve cooling effects. A space saving, stainless steel plate heat exchanger is available on some models.

Special features:

  • HT Series dryers feature staged separation to effectively remove large moisture loads and minimize carryover.

  • Built-in automatic drains include an accurate and adjustable solid state timer.

  • A rugged solenoid valve resists clogging and leaking

Temperature control

The Kaeser HT series of high pressure refrigerated dryers operate in ambient temperatures down to 35 degrees Fahrenheit. An automatic, self-regulating hot gas by-pass valve maintains a 35 degree Fahrenheit evaporator temperature without freeze-up. Adjustments for load and ambient temperature changes are not necessary. Refrigeration service valves allow convenient recharging.

Digital control panel:

  • Control relay and alarm contacts

  • Electric drain test button

  • Alarm set/test button

  • Status indicator of air inlet temperature, ambient temperature, lowest air temperature



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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