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.

A bi-directional tight Knife Gate Valve with a through-going plate.

Stafsjö’s knife gate valves HG have excellent flow characteristics and gives a bi-directional tight sealing. 


Technical data

Nominal diameter:

DN 80 - DN 1200


Stafsjö manufacturing standard

Flange accommodation:

EN 1092 PN 10
EN 1092 PN 16
JIS B 2238 10K
Class 150
Class 150, series A
BS 10 Table D
AS 2129 Table D and E

Tightness check:

EN 12266-1:2009 rate A

Max. Operating pressure:

DN 80 - DN 250, 10 bar
DN 300 - DN 800, 6 bar
DN 900 - DN 1200, 4 bar