HVAC, which stands for Heating, Ventilation, Air Conditioning, and Control, is an area in which Nolek has extensive experience. It refers to the technology used to maintain indoor environmental comfort. It regulates the temperature, humidity, and air purity within buildings and vehicles to ensure a comfortable and healthy atmosphere. The system includes various components such as furnaces, air conditioners, ducts, and filters that work together to heat, cool, and circulate air. HVAC systems are essential in residential, commercial, and industrial settings for creating optimal living and working conditions.
Leak rates for these systems can range from watertight to gastight, with the chosen test pressure typically depending on the component’s usual operating conditions.
Leak rates in the heat sector can vary significantly, from watertight to gastight, covering a spectrum from 1 x 10^2 mbar.l/s to 1 x 10^-7 mbar.l/s. The test pressure used typically reflects the normal operating conditions of the component, with working pressures ranging between 2 bar and 300 bar. Key components in this segment include heat pumps, heat exchangers, central heating units, water pumps, valves, and pressure sensors.
At Nolek, our machines are capable of simultaneous loading and unloading in one chamber while performing leak tests in another. These machines, suitable for robotic loading and unloading, handle various types of heat exchangers, including single plates, double plates (cassettes), and shell and tube models. Sizes range from small units for cars and central heating systems to large units for ships. No matter the scale, we can ensure efficient and reliable leak testing for a wide array of heat exchanger types and sizes.
Applications
Pump Houses
Our machines feature multi-changeable fixtures, enabling us to test a wide variety of pump types efficiently and to a high standard.
Leak rates in specific components are generally categorised as watertight or defined by an IP class, ranging from 1 x 10^3 mbar.l/s to 1 x 10^0 mbar.l/s. The test pressure applied usually corresponds to the component’s typical usage conditions, with working pressures varying from 2 bar to 20 bar. This is relevant for various components such as pipes, water atomisers, preheat and cooling coils, fans, and valves. These elements are pivotal in ensuring the integrity and efficiency of the systems they are part of.
Applications
Pipes
Here at Nolek, we have dedicated machinery for testing pipes and connectors.
We have cultivated a wealth of expertise in developing systems for leak testing a broad spectrum of components within the air-conditioning industry. As the preferred supplier of leak testing equipment to Danfoss, a world leader in the field, our collaboration has enhanced our industry knowledge immensely. Our advanced testing systems cover a wide array of components, including various types of valves (such as control, adjustment, ball, vacuum, hydraulic, and temperature regulator valves), as well as bellows, thermostats, filters, and piping. We are equipped to address any specific requirements or queries you may have regarding air-conditioning parts, ensuring optimal performance and reliability. Leak rates are typically defined by the type of gas used in the components, with values ranging from 1 x 10^-3 mbar.l/s to 1 x 10^-7 mbar.l/s. The test pressure applied often depends on the component’s normal operating conditions, with working pressures varying from 2 bar to 250 bar.
Applications
Filters
We are able to perform a leak test for filters by loading/unloading both chambers simultaneously, with test pressures up to 15 bar Helium.
Condensers
Our machinery is capable of testing up to 4 condensers at the same time, with test pressures up to 70 bar Helium.
This refers to the electrical boxes responsible for controlling the HVAC systems. Leak rates are typically defined by the type of gas used in the components, ranging from 1 x 10^-3 mbar.l/s to 1 x 10^-7 mbar.l/s. The test pressure applied often depends on the component’s normal operating conditions, with working pressures varying from 1 bar to 100 bar. Key components in this industry include water meters, pressure meters, sensors, electronic boxes, and electronic valves.
Applications
Electrical Cabinets
We are capable of leak testing a wide range of control boxes for various use cases. Leak rates very depending on the use.
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