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.

High pressure knife gate valve

Stafsjö’s knife gate valves SLH and SLX are designed for the most demanding high pressure applications with slurry and other abrasive media where operation reliability and low life cycle cost are emphasized. The SLH is designed for pressure up 20 bar/290 psi while the SLX is designed for 50 bar/720 psi.


Technical data

Nominal diameter:

DN 80 - DN 450

Flange accommodation:

EN 1092 PN20
EN 1092 PN25
EN 1092 PN40
EN 1092 PN50
ASME/ANSI B16.5 Class 150
ASME/ANSI B16.5 Class 300
AS 2129 Table F/H

Tightness check:

EN 12266-1:2012 Rate A

Max. Operating pressure:

DN 80 - DN 450, 50 bar