Stafsjö – SLH-SLX High Pressure Slurry ValveEnquire Now

Stafsj 8211 SLHSLX High Pressure Slurry Valve

BRAND: StafsjöCATEGORY: Knife Gate Valves

The Stafsjö SLH and SLX knife gate valves are designed for the most demanding high pressure applications on slurry and other abrasive media where operational reliability and low life cycle cost are critical. The SLH is designed for pressure up 20 Bar whereas the SLX is designed for 50 Bar.

When the valves are in opened position, the seats form a tight extension of the pipe line and no metal parts come into contact with the media. When the valve closes the seats are displaced axially forming a seal with the gate until it forms a complete seal – 100% tight in any pressure direction.

The SLH and SLX have fully lugged coated valve bodies in nodular iron with integrated purge ports to utilise if the covers are fully assembled on the valves. These unique seats are available in low friction special EPDM or natural rubber. These seats seal against a gate which is high strength stainless steel specially machined, ground and then coated to reduce the friction when the valve is operated.

Contact one of our technical specialists for a quote today or download the brochure to learn more!

Specifications

SeriesSLH - SLX
Design

High Pressure Knife Gate Valves for Slurry & Abrasive Media

Features
  • Full bore for maximum flow with no cavities
  • Bi-directional tight shut-off
  • Media does not contact body and blade in open position
  • Robust high strength body
  • Reinforced seat design
  • Packing system in TwinPack
Size
Range

DN 80 – DN 450 / 3″ – 18″

Pressure
Rating

PN20-50 / ANSI 150-300

TemperaturesEPDM seat up to 120°C
End
Connections
Wafer Lug
Blade
Materials
  • SLH Duplex Stainless Steel EN 1.4462 Hard Anti-Stick Coated
  • SLX Stainless Steel EN 1.4542  Hard Anti-Stick Coated
Max
Pressure
SLH 20 Bar @ 20°C / SLX 50 Bar @ 20°C
Body
Materials

Nodular Iron with epoxy coating internally & externally

Seat
Materials
Natural Rubber and EPDM
Options &
Accessories
  • Manual, pneumatic or electric actuators
  • Chain wheel
  • Open close limit switches
  • Positioners
Applications

Where you are looking for a knife gate valve for the most demanding high pressure applications on slurry and other abrasive media

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