Butterfly valves 31100 (31000-31200) ... Used in industrial and district heating pipelines for demanding on-off and regulating tasks. Tight to both directions of Read more > 31100 (31000-31200) ... Used in industrial and district heating pipelines for demanding on-off and regulating tasks. Tight in one direction of f Read more > 411 (41000) PN40 ser... Wafer type butterfly valve is an on-off and control valve for demanding industrial pipelines. The valve is tight in one Read more > 41300 Butterfly valv... The butterfly valve 41300 with weld ends is specially designed for district heating and district cooling networks. Valve Read more > 41500 Butterfly valv... The butterfly valve 41500 is specially designed for district heating and district cooling networks. Valve used also in t Read more > 411 (41000) series W... Wafer type butterfly valve is an on-off and control valve for demanding industrial pipelines. The valve is tight to both Read more > 31300 Butterfly valv... The butterfly valve 31300 with weld ends is specially designed for district heating and district cooling networks. Can b Read more > 31500 Butterfly valv... The butterfly valve 31500 with flanges is used for example in district heating, district cooling systems and in industry Read more >