JTKnife Gate Valve

Stafsjö’s HX knife gate valves are designed for high-pressure environments, alongside the HP and HPT models. These valves are robustly constructed to endure significant bi-directional pressures. Featuring through-going “O” port gates, the HX ensures a secure and reliable shut-off for both static and highly concentrated media. Their superior shut-off performance, combined with excellent flow characteristics, makes them ideal for demanding applications involving materials such as pulp (with a concentration of less than 18%), liquor, and highly concentrated slurry.

Technical Data

Nominal Diameter:
DN 200 – DN 800
Face-to-Face Dimensions:
Stafsjö manufacturing standard
Flange Accommodation:
EN 1092 PN 16

EN 1092 PN 20
EN 1092 PN 25
EN 1092 PN 40
EN 1092 PN 50
ASME B16.5 Class 150
ASME B16.5 Class 300
Tightness Check:
EN 12266-1:2009 Rate A
Max. Operating Pressure:
DN 200 – DN 800: 20 bar”