【Single Negative Pressure Mode】: Employs a single negative pressure mode, eliminating redundant mode switching. Its diaphragm-sealed gas chamber ensures high vacuum with unidirectional airflow. 【Powerful Performance】: Fast filtration speed, improving work efficiency and saving working time. Our diaphragm vacuum pump features a built-in silencer to reduce operating noise. 【Variable Flow Control】: Equipped with a knob-type flow control valve, it provides adjustable flow rate and precise vacuum regulation, offering convenience and practicality to meet the needs of various scenarios. 【Superior Materials】: The outer casing is made of cold-rolled galvanized steel sheet, with corrosion-resistant internal components and large rubber feet for stability and robustness, ensuring continuous and reliable operation 24 hours a day. 【Wide range of applications】: Ideal for laboratories and research, medical and pharmaceutical applications, industrial and production applications, environmental protection and testing, etc.