Pressure Control Valves limit the maximum amount of pressure in a complete or branch hydraulic circuit and provide pressure ranges from minimum to 365 psi (full range), and from minimum to 9, 000 + psi. Defining the maximum system pressure achievable is the role of a Relief Valve. Even for circuits in which the pump may have an integral maximum pressure control, an independent relief valve provides additional redundancy.Key Features:Pilot operated with manual adjustment3 adjustment modes: Hand knob, Acorn nut with lead seal & key lockDirect in-line mounting for independent fitting into a blockThreaded connections to ISO 9974 (Metric), ISO 1179 (BSPPGas)Multiple different pressure setting elements