what if your flow conditions change?

EXAMPLE 1: MINING PROCESS WATER APPLICATION (24")

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.
Original Process Data given to SlurryFlo for a custom trim design.Valve calculations from original trim design.
Original Flow Conditions with original SlurryFlo trim design at 20% Open and 71% Open
Upon receipt of the client’s process data, SlurryFlo’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 process data resulting from a change in flow conditions resulting in cavitation, noise and accelerated wear.Observed valve calculations after a change in flow conditions.

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, SlurryFlo also determined the valves were now operating between 10% and 38% open (not ideal).
Original Flow Conditions with original SlurryFlo trim design operating at 10% Open and 38% Open

new flow conditions with new trim

With the client’s revised flow conditions on hand, SlurryFlo 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.
Original Flow Conditions with new SlurryFlo trim design at 20% Open and 70% Open
New process data after installing a new custom SlurryFlo seat plate trim design.New valve calculations after installing a new custom SlurryFlo seat plate trim design.
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