Mining and mineral processing

Stafsjö has a full range of knife gate valves developed for tough abrasive slurry and other related process media such as sludge and process water. 

Our valves for slurry handling covers several pressure classes making the range complete for both the processing plant as well for the tailing system. Our slurry valve SLV is typically used in the sizing process on cyclones, as isolation valve around slurry pumps or tanks. For fast removal, old non-centered pipe lines or low pressure applications we recommend our fully flanged slurry valve SLF. For the tailing system typically higher pressure valves like our SLH (20 bar/290 psi) or SLX 50 bar (720 psi) are required. 

Stafsjö’s range of through-going o-port gates is especially suitable for installation on highly concentrated slurry or on position where no discharge is allowed from the valve. For light slurry, sludge and process water the WB and MV range becomes useful with their precise characteristics to cut off the flow and to secure a tight shut-off and no discharge. The MV is also available in stainless steel and suitable for underground operations with water of low pH. 


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