Coffee-way exhaust valve, valve coffee, food packaging special one-way exhaust valve, coffee ..

Coffee-way exhaust valve, valve coffee, food packaging special way exhaust valve, coffee-way valve. 100% food grade PE raw material production, environmental certification by SGS. Product by officers after a hundred percent quality inspection qualified before issuance, reliable quality. One-way exhaust valve mainly used in coffee bags, fermented feed bags, pet food bags, breathing film bags, plastic bags and other exhaust package bag. When the air pressure in the system is greater than the outside air pressure, will be through the exhaust valve of the gas system is discharged to go. Equal in bag fitted with a check valve. Both to prevent the system which led to an increase in internal gas bag Blow, and effectively prevent the outside air in order to oxidative damage of food, to ensure the quality of the food aroma.