气控针阀是一种以压缩空气做为动力来执行开闭的阀门，依靠常规的低压压缩空气为动力推动执行装置，控制高压流体的通断，在自动化或其他使高压系统的自动控制变得容易和有效，具有金属硬密封，启闭行程短，速度快，密封可靠。适用于液压油、水、气体等多种介质。

Pneumatic needle valve is a valve that uses compressed air as power to open and close. It relies on conventional low-pressure compressed air as power to drive the actuator and control the on-off of high-pressure fluid. It makes the automatic control of high-pressure system easy and effective in automation or other. It has metal hard seal, short opening and closing stroke, fast speed and reliable seal. Suitable for hydraulic oil, water, gas and other media.