UniSoft® Hydrus

Hydrus Valve The Hydrus valve is a multi-port valve that controls system flow through a single tank, however, it is designed to inherently link to other Hydrus valves, thus easily expanding to multi-tank configurations.

The Hydrus uses water pressure to move its internal pistons through service and regeneration cycles. It uses no electrical components, therefore is ideally suited for installation in even the harshest environments. All regeneration sequences and timing are managed via an on board hydraulic control disc.

The Hydrus uses a hydraulic start signal to initiate a regeneration or backwash. Smart Start Controller The Smart Start controller is the interface between electrical signals and the hydraulic signal required by the Hydrus valve. The Smart Start controller uses a latching, low voltage solenoid valve to generate this hydraulic signal. The Smart Start is designed to accommodate a variety of inputs, allowing for extreme flexibility in choice of system controls. The smart start controller unit also includes on onboard clock and timer that can be used to start a regeneration or delay an external start signal to an off-peak time.

Control Accessories

The Smart Start controller has two dry contacts inputs used for starting a regeneration. Some typical devices that may be attached to these inputs include: Volume Reset Meter, Differential Pressure Switch or Quality Alarm.


Guldager is a Danish family owned company. The company was founded in 1946 and is today a modern company, represented internationally through subsidiaries, agents and dealers. We apply decades of experience, up-to-date knowhow and cutting-edge technology to meet the many needs of our customers.


Guldager A/S is an international company committed to its customers. We are used to provide service and support to our customers all over the world. Please feel free to contact any member of the Guldager team, we are looking forward to hearing from you.

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GULDAGER A/S HEJREVANG 1-5 DK-3450 ALLERØD +45 48 13 44 00