Product 2025
SLURRY KNIFE GATE VALVES (Turkey)
SLURRY KNIFE GATE VALVES
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Description
Knife gate valve SLV Stafsjö’s knife gate valve SLV is a full bore valve with a unique seat design that gives excellent flow characteristics and makes it particularly suitable for the most demanding services with slurry and other abrasive media. The SLV gives a tight shut-off independent of pressure direction. The SLV has an epoxy coated fully lugged valve body in nodular iron with integrated purge ports. The seats are flexible in an axial way and seals towards each other in the bore when the valve is in open position, thus protecting internal parts and the gate from the abrasive media. Upon closure, the seats are displaced axially, forming a seal with the gate until it forms a complete closure of the bore and gives a bi-directional tight shut-off. The seats also form a sealing face on the valve flanges saving the need for gaskets. The gate is always supplied in hard chromed stainless steel for increased wear resistance and extended service life. The gland box, which seals around the gate, is as standard supplied with three layers of our TwinPackTM and a box bottom scraper in order to give a first-rate sealing and gate guidance. The SLV has a solid top works that gives excellent stability during operation. For security reason it is always supplied ready to be locked in either opened or closed position. In our standard collection of actuators and accessories there are several types to choose from – all easily exchangeable between each other. The SLV can also be supplied with a bottom cover to prevent media from discharging below valve. If bottom cover is used then standard purge ports must be utilized to prevent material build up in lower body. The SLV valve is designed, manufactured, inspected and tested according to the European Pressure Equipment Directive (PED 97/ 23/EC) category I and II module A1. The valve is CE-marked when applicable. Other slurry valves besides this SLV is the fully flanged SLF and the high pressure versions SLH and SLX which can be supplied for pressures up to 50 bar.
