Stainless Steel AISI316L Relief Valve, standard version pressure up to 200 bar. Available input and output connections: G3/4-M; G1-M; 3/4"NPT-M; 1 "NPT-M. Additional connections or EN/ASME flanges are available upon request. The relief valve will allow fluid to pass through only if the inlet pressure exceeds the value initially set by the adjusting screw. Close the channel again when the pressure is below the set value. Suitable for ATEX 2014/34 / UE version.