The ECODRY plus is a newly developed family of dry-compression multi-stage Roots vacuum pumps, which sets new standards in noise reduction. The pumps have been specially designed for use in quiet and clean environments, such as analysis and research laboratories. In ECODRY plus, there are eight pump chambers in succession along the same axis. The [...]
Short, reliable and clean production processes are more important than ever for the increasingly digital and globally active value chains, in addition to highquality results. Vacuum technology provides a significant contribution to meeting these requirements. The vacuum pioneer Leybold has designed the new VARODRY vacuum pump series for efficient industrial vacuum processes. The oil-free VARODRY [...]
Prior to sending satellite components to space, they have to undergo a thorough testing. This is because even minor parts can bring a long-term project to strand if they fail in mission. In order to minimize the probability of losses objects tested in realistic environment for an extended period (up to three month). Typical conditions [...]
May 8th, 2018 – Precision and speed are some of the most important features in optical coating. Modern vacuum solutions are a crucial part for the success and economic viability of manufacturing processes and analysis. Apart from vacuum components and systems, on-time service and after-sales performance influence the decision for the installment of optimized fore [...]
Being novices in the blog department, we will get to adding our Coolvac Facebook page to the site but in the meantime the following comments are an accumulation of 40 years in the industry. Hopefully passing on these comments will assist all kinds of refrigeration engineers irrespective of their experience to borrow from our time [...]
Overpressure Methods The equipment to be tested is pressurized with a gas, search gas, or a search gas mixture. Between the two methods there exist many variations depending on the particular application. Pressure Drop Method. The test object is filled with a gas (for example air or nitrogen) until the testing pressure is reached. Precision [...]
By applying soap solutions or similar, (typically sprayed or painted on) leaks can be located by watching bubbles forming in the leak area.
An ultra-violet dye circulating with a system liquid permeates through the leak and is able to be detected using an ultra-violet light.
The test object is filled with the search gas or the search gas/air/nitrogen mixture to which the leak detector is sensitive. The leak detector is equipped with a sniffer probe, whereby there is a low pressure at the probe tip. If the sniffer tip passes suspicious points on the test object the search gas coming [...]
Hand held leak detectors using the detection of pressure escaping through the leak source by listening for gas leaking. These leak detectors are very efficient but are limited by the need for absolute quiet during the detection procedure.