With the GO-3A/P (Automatic Outgassing Settling Pumps) the possibility of a maintenance-free and precise dosed sample delivery is additionally realised.


For particle-free pre-filtered (<50 μm) sample water. The P stands for pump, to be precise, for a solenoid diaphragm metering pump. In addition, the use of a special drip tube is necessary (Article 700.002).

Especially the reduction of the maintenance effort of our GO-TOC/ TNb measuring devices was in the foreground during the development of the device. The usual wear of the delivery hose to the reactor during normal operation leads to a slow but steady change in the delivery volume, which results in a change in the measured value. Until now, such deviations were compensated for by calibrating our GO-TOC/TNb devices.

To save our customers this effort, we use a highly precise solenoid diaphragm metering pump in our new GO-3A/P stripper. This conveys the stripped sample water into the reactor. To avoid an unnecessary load of particles on the pump, we have placed our GO-3A stripper in front of it.

Individually selectable settling and rinsing times of the stripping unit and a wide range of setting options for the solenoid diaphragm metering pump enable a wide variety of optimisations for our customers.

The performance profile

Stripping gas throughput

20 – 40 l/h

Sample water throughput

150 – 250 ml/h

Prepared sample quantity

20 – 40 ml/h

Supply voltage

24 V DC

Ambient temperature

5 – 45 °C

Dimensions (HxWxD)

approx. 180 x 180 x 100 mm


approx. 1 kg

Sampling materials

Glas, Viton, PVC, Silikon, Teflon