Our broad range of products includes valves, actuators and automation technology.

We are able to offer customized solutions for almost every industrial application. Due to our own production line of actuators and automation technology, the valves can always be equipped with the optimal fitting actuator. This is how an excellent matching of both components is guaranteed, which reduces the energy demand.

Series production is our business – the development of customized solutions for special applications is our passion. When a standard valve does not comply with the requirements, we develop a suitable solution in close cooperation with our customer.

Knife Gate Valves for high pressure applications.

Stafsjö’s high pressure knife gate valves HP, HPT and HX are all strenthened to withstand high bi-directional pressures. They are equipped with through-going "O" port gates and this secure a really safe and reliable shut-off of static and highly concentrated media. This shut-off performance, along with its excellent flow characteristics, makes them suitable for really demanding operating conditions with media as pulp (pulp concentration < 18%), liqour and highly concentrated slurry.


Technical data

Nominal diameter:

DN 200 - DN 800


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