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Thanks for your replies! Sampling from the suction of the large pump was not optimal, but necessary due to adding of other chemicals downstream. The major problem was the original placement of the sample pump. On other installation this design has worked, however then with the sample pump...

Hi I have come across a problem that and I don't quite know where to start. The problem is as follows: We have a 13 meter high tank, water level can be anywhere between 0 and 13 meters. A small pump (3 m3/h, NPSHr = 3 meter) is placed 6.5 meters above the ground. The suction pipe is located on...

Thanks for your answers. This cabinet is located in a pump room on-board a crude oil tanker. It is a measuring device using consumables, so the consumable has to be refilled when empty. After the refilling is completed the internal tubing has to be primed, this is done by initiating the priming...

Yes, you have to check if any explosive gases are present before opening the cabinet. My question is then really; although the cabinet is located in a Zone 1 area, is it allowed to open the cabinet if there are no explosive gases present? Are there any requirements to the check of the...

Hi We have a pressurized cabinet located in a Zone 1 area. The user manual states that before performing service we have to check that the area does not contain any explosive gases (checking would be doen by a handheld instrument). Servce involves opening the cabinet and with the power on. I am...