Condensate drainage
Suction or pressure operation
The condensate separated in the sample gas coolers must be discharged quickly from the system. Depending on the design of the measuring system, two different options are available for this:
If the sample gas pump is in the sample gas inlet and consequently all the following components of the system are under pressure, automatic condensate drains are an option. These are small containers made of different materials into which the condensate is fed. At a certain level, a built-in float opens the drain and the condensate is discharged with the help of the system pressure. Such condensate drains do not require any external energy.
If the measuring system is to operate in suction mode, the condensate must be forcibly discharged. Peristaltic pumps are ideally suited for this purpose. They generate sufficient negative pressure to be able to pump the condensate, but at the same time seal off the line tightly and thus prevent foreign air from entering the measuring system.