In comparison to conventional slurry valves (such as ball valves, butterfly valves and pinch valves), SlurryFlo control valves have removable trim components that can be swapped out when flow conditions change. There is no need to replace the entire valve, as the trim change essentially provides the client with a new valve (with new control characteristics) at a fraction of the cost. The following case study is a ‘real world’ example.
Upon receipt of the client’s process data, SAF's engineering group designed a custom seat plate geometry. For optimal modulating performance, the trim was sized to operate between 20% and 70% open.
Original flow conditions with original trim
new flow conditions with original trim
After several months of successful process control, the application’s flow conditions changed; this caused severe cavitation, vibration, noise and accelerated wear. By analyzing the new process data, SAF also determined the valves were now operating between 10% and 38% open.
new flow conditions with new trim
With the client’s revised flow conditions on hand, SAF developed an all new seat plate geometry. This custom component was quickly manufactured, shipped and installed on site. The result was a reduction in cavitation, enhanced valve performance, increased service life, and an optimal operating range of 20 to 70% open.