The product adopts die-cast aluminum alloy shell, with HNBR/NBR composite seals to strengthen air tightness and wear resistance, installation width 26mm, weight 290g, suitable for ISO 15407-1 standard 26mm base, saving equipment layout space. Based on piston slide valve structure, relying on mechanical spring reset, working pressure coverage - 0.09-10 bar, pilot pressure 3-10bar, fast response, opening time 21ms, closing time 40ms, single base installation rated flow 1100L/min, to meet the flow demand of medium and large pneumatic actuators.