The product adopts die-cast aluminum alloy shell, with HNBR/NBR composite seal, soft seal structure to improve air tightness and durability, the overall installation width is 18mm, the weight is 168g, and it is suitable for ISO 15407-1 standard 18mm base installation, saving equipment layout space. Based on the piston slide valve design, it relies on the mechanical spring to achieve reset, the working pressure covers - 0.09-10 bar, the pilot pressure is 3-10bar, the response is fast, the opening time is 13ms, the closing time is 39ms, and the rated flow rate is 550L/min when the single base is installed, which meets the flow demand of small and medium-sized pneumatic actuators.