Interpump HXM pressure regulator valve is a manually-adjustable, pressure-operated device which, according to its setting, limits the pump/system pressure by conveying the excess of water to the by-pass. Moreover, when the outlet flow is blocked, this device totally releases the flow, thus keeping the pump/system at the adjusted pressure. 130 Bar max pressure. 15 Lpm max flow. 60°C max water temperature. Brass construction. For use with Interpump FE series pumps. Misting specific valve. 3/8"BSPM inlet. 3/8"BSPM outlet. 3/8"BSPM bypass.