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Selection of Precision Dispensing Valves

The article focuses on the critical role of precision dispensing valves in modern manufacturing, particularly in electronics, automotive, and medical device applications. It emphasizes that proper valve selection is essential for achieving high-quality dispensing and optimal productivity. The text is structured around four main aspects: 1. Requirement analysis – evaluating material properties, precision needs, speed, and flow rate before selection. 2. Valve body types – comparing manual valves (simple but inefficient), pneumatic valves (medium precision, suitable for automated dispensing), and electric valves (high precision, consistent performance). 3. Nozzle size – choosing smaller nozzles for low‑viscosity materials and fine work, and larger nozzles for high‑viscosity or high‑flow applications. 4. Control modes – including manual, foot pedal, timing, and sensor control, with sensor‑based adjustment ensuring uniform dispensing.