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This study aims to characterize the hydraulic performance of a direct-acting pressure-reducing valve using experimental and numerical methods.

June 4, 2026FluidsOpen Access

Hydraulic Characterization of a Direct-Acting Pressure-Reducing Valve Using CFD and Experimental Validation

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Randomized trial evaluates hydraulic performance of direct-acting pressure-reducing valve, suggesting effective modeling approach.

This study aims to characterize the hydraulic performance of a direct-acting pressure-reducing valve using experimental and numerical methods.
Experimental test bench measures pressures over a flow rate range from 0 to 4.0 m3/h at defined pressure settings.
Three-dimensional steady-state CFD model developed using force balance analysis between hydraulic and spring forces.
Simulations conducted at 25 bar for validation against manufacturer data.
Maximum error in outlet pressure predictions was below 10%.
Pressure drop increased nonlinearly, reaching 1.8 bar at 4.0 m3/h.
Flow coefficient Kv ranged from 2.2 to 3.0, while pressure regulation coefficient S remained below 0.05.

López-Villacís et al. (2026) studied this question.

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