Knife gate valve
SLF
Fully flanged push through heavy duty slurry knife gate valve.
Available size range:
DN 80 - DN 400 (3” - 16”).
Product data sheet:
Discover more
About SLF
Stafsjö’s wide body SLF is a push through slurry knife gate valve with superior flow characteristics, offering reliable and bi-directional shut-off performance in the most abrasive and demanding mineral processing applications.
The SLF valve is modular designed and it can easily be customized with actuators and related automation accessories to different process conditions. The valve is also available with mechanical lock out. As standard, the SLF is supplied with a flanged robust and precision machined nodular iron valve body and a strong duplex stainless steel gate, which is also special grinded with purpose of reducing the friction when it cycles through the valve’s rubber seats.
In addition to this slurry valve Stafsjö also offers the compact SLV up to DN 900/36″ and two high pressure versions, the SLH and SLX, available in pressure rating up to 50 bar/725 psi.
Download the product data sheet for additional technical information.
Specifications
Shut-off technique
Bi-directional
Push-through
Valve seat material
EPDM
Natural rubber
Connection type
Flanged
Valve body material
Nodular iron
Industries
Mining
Power
Steel
Product features

A precise gate alignment extend the service life

Reinforcements rings ensure stability and performance

Expansion areas reduce stress and actuation force

Downloads
- Title Format Size Restriction
-
Knife gate valve SLF
PDF 4 MB
- Title Format Size Restriction
-
Manual actuators
PDF 2 MB -
Double acting pneumatic cylinder SC
PDF 1 MB -
Electric motor AUMA
PDF 91 KB -
Electric motor LINAK
PDF 1 MB -
Hydraulic cylinder
PDF 2 MB -
Stafsjö standard accessories
PDF 4 MB
- Title Format Size Restriction
-
Installation and service instruction
PDF 2 MB -
Maintenance instruction for SLV, SLF, SLH and SLX
PDF 380 KB -
Declaration of conformity with EU Directives
PDF 144 KB -
Specification guide
PDF 82 KB
- Title Format Size Restriction
-
3D STP SLF DN80 DN150 HWR PN10
ZIP 3 MB -
3D STP PDF SLF DN80 DN300 SC PN10
ZIP 32 MB