Manifold Erosion due to Cavitation

Sun direct-acting reliefs (RD**), sequences (SC**), and pilot operated, balanced poppet reliefs (RP*S, RV*S, and RP*T) do not erode cavities because the actual metering of the fluid occurs inside the valve (the valve creates its own backpressure). Switching to one of these valves is easy as they use the same cavities and have the same flow paths as the balanced piston versions.