Knife Gate Valve for Abrasive Slurry

Stafsjö’s knife gate valves SLV and SLF are particularly suitable for abrasive and demanding slurry where operation reliability and low life cycle cost are emphasized. The SLV is a lugged version while the SLF is fully flanged and especially suitable on old non-centred pipes or low pressure applications.

Technical data

Nominal diameter:

DN 50 – DN 900


Stafsjö manufacturing

Flange accommodation:

EN 1092 PN 10
AS 2129 Table D
AS 2129 Table E
Class 150, ASME/
ANSI B16.47 Class
150 series A

Max. Operating pressure:

DN 50 – DN 600, 10 bar
DN 700 – DN 900, 5 bar