Unique sticking coffee bags one-way degassing valves

Product Description

Specifications ofOne-wayDegassingValve

Material : PE / PT/

Color: clear/ transparent/ customized

Function

The one-way degassing valve is especially suitable forstockingcoffee beans. The one-way degassing coffee valve effectively vents CO2 gas produced by coffee beanswhile sealing out oxygen, moisture and contaminants in the air. 

Application

The most common applicationof the one-way degassing valve is for fresh roasted coffee. Another application istorelease trapped air forstockingand producing stable shipping pallets, including large flexible packages for pet food, animal nutrition, plastic resin, and agricultural chemicals.

How does it work?

When pressure inside a sealed package increases beyond the atmosphere pressure, the film within the valve body will spontaneously bent so that the gas orCO2 emitted by coffee beans can escape out of the package while the oxygen or moisture can not penetrate in. When the pressure is in balance, the film will return to flat and the valve will be closed.