1.Professional pneumatic one-way diaphragm pump, specially designed for printing machines and carton factory ink supply systems, ensuring stable ink delivery during production. 2.Features an inlet/outlet diameter of G1/4, with a medium flow rate of 4-12 L/min, meeting the ink transmission requirements of most industrial printing equipment. 3.Operates at a working pressure range of 0.2-0.5 MPa, with a self-priming height of 2M and a head of 4M, enabling efficient ink suction and delivery without manual priming. 4.Has an air consumption of 4 m³/h, compatible with standard pneumatic systems, and adopts a one-way design to prevent ink backflow, ensuring consistent printing quality. 5. and reliable in structure, easy to install and maintain, suitable for long-term continuous operation in printing workshops and carton production facilities.