Laminar flows - Import export

We offer you standardised complete systems for the measurement of volume & mass flows. The EP LMF®-LaminarMasterFlow® is a complete system for high-precision flow measurement of gases and air. The LMF® system consists of a flow processor, a Laminar Flow Element (LFE) as measuring section, a cable set and a sensor package. The flow measurement is performed by means of Laminar Flow Elements (LFE), which are available in different sizes and cover a measuring range from 0.01 to 700 m³/h. (optionally up to 4000 m³/h).

Water-sprinkled spray walls and spray booths with automatic paint sludge filtration system In wet separation, the overspray meets the water film of the spray wall and is thereby bound in the water. The sludge formed by this is discharged using sludge filtration systems. Water-sprinkled spray walls The overspray is sucked in in the lower area of the vertical water drain surface and is bound in water when it meets the film of water. The paint mist is washed out further in the lower section of the washout tower using a vortex washing system with downstream baffle plate separator. In order to replace the water lost due to evaporation, it is recommended to fit an automatic water level controller. The entire quantity of water is fed to the automatic paint sludge filtration system via the disposal pump. A coagulant is added to the water by an automatic dosing unit, as a result of which the paint sludge in the circulating water is disbonded and can be separated more easily. The cleaning of the circulating water takes place in the separately arranged paint sludge filtration system. Depending on the paint system and plant version, the separation system is operated using a full or partial current method. Water-sprinkled spray walls/booths with underfloor paint mist extraction For the painting of large parts with a high paint throughput. The paint mist is sucked in under the grating cover. A substantial part of the overspray is already bound in the water by the constant sprinkling of the entire floor of the basin. The paint mist is washed out further in the lower section of the washout tower using a vortex washing system with downstream baffle plate separator. Optimum capture of the paint mist is guaranteed by the laminar air flow inside the booth. A further advantage over comparable systems is the low water basin height and the associated low foundation depth. The sludge formed by this is discharged using sludge filtration systems. Advantages

EP Ehrler Prüftechnik manufactures LFEs in the flow rate range from 0.012 to 4000 m³/h. In addition to the standard range, EP offers customer-specific LFEs that are perfectly designed for your application. Suitable inlet and outlet sections and the corresponding mounting kits are available for all sizes for installation in customer applications. The achievable measuring accuracy depends largely on the sensor technology used, in particular the differential pressure sensor. When using high-quality sensors, measuring accuracies of up to 0.5 % MW can be achieved with LFEs in the measuring range of 1:10. In order to cover a very wide measuring range without restrictions in measuring accuracy, LFEs with overlapping flow ranges can be combined in one measuring setup. Alternatively, LFEs with correspondingly lower measurement accuracy can also be calibrated for an extended measurement range up to a maximum of 1:100.

with adjustable humidity and temperature to simulate the environmental conditions of a test specimen (e.g. household appliances, heating technology) The basis is a standard or climatic chamber (e.g. test kitchen, environmental simulation) with adjustable air humidity and temperature. On the basis of decades of experience in automotive test engineering, EP-E developed a concept in which the air flows in a circle (loop design). The result is a very excellent homogeneous temperature and humidity distribution. Through precise temperature and humidity control, it is possible to set different combinations of air conditioning and thus precisely adjust the required test conditions. The determination of the air flow (exhaust air volume) is carried out via a measuring section with the use of Laminar Flow Elements (LFEs). In order to determine the volume flow, pressure and temperature sensors are used to determine the air volume flow of the climatic chamber(s).

The flow tester CETATEST 915 is used for flow testing with compressed air. It includes a measuring system consisting of laminar flow element (LFE) and differential pressure sensor In the direct test method the air, provided by the internal pressure regulator, flows through the measuring section before it enters the test part.In the indirect method, the measuring section is located in the outlet flow of the test part. Due to the special design of the measuring section a laminar ow is generated. The resulting pressure difference is directly proportional to the volume flow. With the optional electronic pressure regulator and four calibrations for up to four test pressures the application range is substantially expanded. Special versions: The CETATEST 915-G is a fully automatic flowmeter for the detection of leaking parts. Typical applications: 915: Testing of valves, vehicle exhaust systems, pipes, membranes, 915 G: Gas appliance industry, after-work jobs in the automotive industry