Rickmeier DB9 S-P40/8(40)-SAE(0)-PPIE-M-SXCF is a pilot-controlled DN80 pressure relief valve with 40 bar preset pressure range, SAE0 port connection, internal pilot oil return and metric adjustment spindle, engineered for high-flow lubrication and hydraulic systems in marine, power generation and heavy machinery to stabilize system pressure and protect circuit components.