What about knife gate valves with replaceable sleeves – has Dual manufactured these?
Dual have introduced a range of knife gate valves specifically designed for heavy duty slurry isolation. They feature 316 stainless steel gates as standard with replaceable elastomer sleeves and are available in both wafer and flanged versions, in standard pressure ratings from 10 Bar up to 25 Bar in all sizes DN50 up to DN1000. These have proved to be greatly successful, with many units installed in both North and South America, Canada, Europe, Australia and of course throughout Dual’s home continent of Africa. A limited range is also available with a 40 Bar maximum pressure rating.