Fisher has created a ‘slurry’ valve designed specifically to handle the abrasive and erosive nature of oil sands and mining slurry flow. The V150S utilizes reverse flow design to direct flow away from the valve body. Fisher has extended the downstream portion of the valve so that the valve itself will be exposed to the region of highest flow velocity, instead of the downstream piping. A PSZ ceramic flow ring insert is used to protect the valve in this region and, in order to prevent the ball from erosion, it is constructed from the ceramic material as well.
The V150S compared to gate valves and other rotary valves has on average achieved a 4x increase in valve lifespan. In addition, the valve maintains predictable control characteristics throughout the wear cycle allowing for consistent process control and operations. By combining the benefits of a control valve with the durability of a slurry valve, the V150S offers the control to optimize your process while minimizing maintenance requirements to limit downtime.
Our customer utilized air injection columns which modulates the liquid (highly abrasive slurry) rate being drained from the bottom of the column. Current gate valves were lasting on average 8-12 months, the Fisher V150S slurry flow control valve with ceramic trim proved to be the best solution and after significant run time it was found that the valve life span had improved to 24 months delivering $533,004/yr savings.