The Duplomatic MD1D-RK/50 is a direct-operated pressure relief valve of the poppet type, designed for subplate mounting. This valve is engineered to limit the pressure within a hydraulic circuit, safeguarding system components from overpressure conditions. When the circuit pressure reaches the valve’s set value, the poppet opens, diverting excess flow to the tank. Its robust construction and poppet-type design ensure fast response times and minimal leakage, making it ideal for applications requiring reliable and precise pressure control. The valve conforms to ISO 4401 (CETOP 03) mounting standards for seamless integration into new and existing hydraulic systems. The “-RK” designation indicates it is equipped with a handwheel for convenient, tool-free pressure adjustment.