SLV

Stafsjö’s knife gate valve SLV is designed for the most demanding slurry and abrasive applications. The valve is bi-directional and has full bore for maximum flow capacity. Minimal seat cavity prevents accumulation of media in the bore.

SLV is a modular design consisting of a compact epoxy coated one or two piece valve body in cast iron or nodular iron. The top work can easily be provided with different actuators and accessories. The valve can also be customized with hard chromed gates in different alloy.

Sealing principle
SLV’s seats give it its unique abilities to perform for extended periods on the most difficult abrasive fluids; they are flexible in an axial way. When the valve is fully open the gate is completely clear of the seat/lining allowing it to form a continual liner from inlet to outlet protecting the internal parts from the fluid.

When the valve closes the gate forces its way between the two seats. They are displaced axially forming a seal with the gate until it forms a complete closure of the flow port from both directions and isolating the body cavity from the fluid. The seats also form a sealing face on the valve flanges saving the need for gaskets while reinforcing rings are embedded in them to ensure position, shape and strength for long life.

Further information is available in the technical data sheet (ds), which are available to download below. You are also welcome to contact your local representative or us directly for advice and further information.

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