I have gas pipeline with biogas, low pressure - approx 40mbar over atmosphere. I want to remove a small amount of condensate, inside a building, without creating an ex-zone. Small amount: I honestly don't know but it should be next to nothing. But I create a low point and want to be sure I don't block my pipeline.
What is a valve that I can build into the pipeline at the low point, that allows me to ex-filtrate gas without creating an ex-zone?
No need for an actual supplier, but some terms to aid my googling my writing of the RFQ would be great. Plus the technical info to decide if it's the right gadget for my problem!