Valve Disc Groove Optimizes Boost Effect for Regulator Capacity

The valve disc is designed with a non-uniform intermediate surface that has different geometries in different radial regions. This local variation in surface geometry creates different boost effects at different locations, allowing the regulator to maintain good downstream pressure control while improving capacity at low inlet pressures by reducing the excessive boost effect that occurs in conventional balanced trim assemblies.

The intermediate surface of the valve disc incorporates specific geometric features (such as curved surfaces or stepped regions) that create localized pressure distribution patterns. These local geometric variations modify the boost effect to occur primarily at lower inlet pressures, while at high inlet pressures the boost effect is naturally reduced, preventing excessive capacity increase and maintaining performance consistency across different operating conditions.

The intermediate surface of the valve disc incorporates curved geometric features rather than complex irregular shapes. These curved surfaces can be efficiently manufactured using standard machining processes such as CNC turning or molding techniques, making the non-uniform geometry practical to produce while still achieving the desired optimization of the boost effect for improved capacity performance across varying inlet pressures.