The product adopts forged aluminum alloy shell, which meets RoHS requirements, the seal is durable and reliable, and the corrosion resistance grade reaches CRC level 2. Based on the Venturi principle, the nominal diameter of the Laval nozzle is 0.45mm, the working pressure is 2-8bar, the maximum vacuum degree is 85%, the response is fast and the vacuum is stable. Integrated 40μm filter, one-way valve and normally closed muffler, suitable for oil-free compressed air, non-lubricating operation.