
Stafsjö’s HP knife gate valves are specially designed for high-pressure environments. The HP series, including the HPT and HX models, features a robust construction that enables them to withstand bi-directional pressures effectively. These valves are equipped with through-going “O” port gates, ensuring a safe and reliable shut-off for both static and highly concentrated media. Their exceptional shut-off performance, coupled with excellent flow characteristics, makes them ideal for demanding operating conditions involving materials such as pulp (with a concentration of less than 18%), liquor, and highly concentrated slurries.
Nominal Diameter:
DN 300 – DN 900
Face-to-Face Dimensions:
Stafsjö manufacturing standard
MSS SP-81
TAPPI TIS 405-8
Flange Accommodation:
EN 1092 PN 10
EN 1092 PN 16
JIS B 2238 10K
ASME/ANSI B16.5 Class 150
ASME/ANSI B16.47 Class 150, Series A
Tightness Check:
EN 12266-1:2012 Rate A
Max. Operating Pressure:
DN 300 – DN 800: 10 bar
DN 900: 6 bar
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