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 Valve

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 80 - DN 400


Stafsjö manufacturing standard

Flange accommodation:

EN 1092 PN 10
Class 150
AS 2129 Table D
AS 2129 Table E

Tightness check:

EN 12266-1:2012 rate A

Max. Operating pressure:

DN 80 - DN 400, 10 bar