Most issues within HVAC systems are closely related to air being introduced into the system as a result of pressurization issues. A poorly designed, installed or maintained pressurization system can lead to negative pressures around the circuit. Air is drawn in through automatic air vents, gaskets and micro leaks and water may be emitted through pressure relief valves, leading to frequent refilling. The introduction of oxygen through leaks or by refilling with undegassed, mostly hard water also makes corrosion inhibitors significantly less effective.
SpiroExpand covers a full range of solutions, from the most basic setup to the most extended, complicated system. All units are used to provide full vacuum degassing of the system water. Make-up water is degassed prior to system entry, offering substantial long-term protection.
Not just for the commissioning phase, but for the entire lifetime of the system. SpiroExpand can dramatically increase performance and avoid premature failure of major system components.
When degassing, we recommend following the VDI 4708 and VDI 2035-2 guidelines. In order to achieve the best possible degassing performance in heating and cooling installations, a separate vacuum degasser is recommended in addition to the more commonly used deaeration function in pressurization systems.
The degassing function of the SpiroPress units will reduce air related issues in closed water circuits, but it is not a guarantee to reach a gas pressure which is lower than the lowest pressure in the system (gas absorption condition).
In the document below you find 2 connection diagrams with the SpiroExpand MultiControl Kompakt Solo in combination with our vacuum degassers:
A SpiroTrap dirt separator with magnet is also added to the connection diagram to ensure that your system water will be free from dirt and magnetite at any time.
Download the connection diagrams
A poorly designed, installed and maintained pressurization system can lead to negative pressures around the circuit. Air can be drawn in through Automatic Air Vents, gaskets and micro leaks. High pressure situations can lead to water being emitted through the safety valves and the subsequent frequent addition of further raw refill water.
Using a pressurization unit means optimized pressure in your system
and saving space in your boiler room!
The PicoControl Kompakt comes in six possible versions (45, 75, 125, 200, 300 or 500 liters). Operating pressure up to 4.0 bar is possible
The SpiroExpand PicoControl Kompakt is equipped with a single pump (1x 100%) and a single valve (1x 100%)
The Multicontrol Kompakt comes in 104 possible versions, with 5 possible container volumes: 75, 125, 200, 300 or 500 liters. Two further containers can be added.
Our Multicontrol Kompakt comes in 5 series and several Partner packages with the following configurations:
More about the MultiControl Kompakt
Download the free BIM files of our MultiControl Kompakt products
The MultiControl Modular comes in 78 versions and 12 vessel volumes: 200 to 10,000 litres. Additional vessels can be added.
Our Multicontrol Modular comes in 5 series with the following configurations:
The MultiControl Cool is available in 6 configurations and 8 versions with volumes of 125 (x2), 200 (x2), 300 (x2) and 500 (2x) liters.
The TopControl Modular is an expansion- and pressure maintenance unit in modular design for combination with the pressureless EG expansion vessels (0,5 bar safety valve).
Our TopControl Modular comes in 5 series with the following configurations:
These are ‘passive’ pressure management systems. A preset gas pressure in the membrane expansion vessel is used for pressure control. Because membrane expansion vessels do not have a make-up function, we ideally combine this type of pressure control with a vacuum degasser including a make-up function.
The expansion tanks are available in 12 configurations and with volumes between 2 -3000 litre and an operational pressure range from 3.0 – 25 bar.
Customize your pressurization set-up to maximize the performance of your heating or cooling system. Whether you are designing, dimensioning or planning as part of an initial consultation, this tool will help you, just enter the key basic parameters and you’ll be presented with various solutions in a matter of minutes. The preferred solution can be either downloaded or sent via email.
Our experts have developed a whole range of high-quality products to ensure that your heating & cooling system works as efficiëntly as possible. Saving costs and provide maximum comfort for you.
If you have any questions about our products, our solutions or need advice from our experts don't hesitate to contact us!
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