Coffee Valve Rong Yi Plastic Packing Co.,Ltd Coffee Valve were designed and helped to release residual gas from the packing bag while it also blocked the air to enter into the packing Pouches. Range Of Application: Our superior quality one-way degassing coffee valve, widely used in ground coffee bags, coffee bean bags, feed fermentation feed spice bags, flour bags, pet food bags, medical device packaging bags and so on. 1) Coffee -- After roasting, coffee would released a lot of carbon dioxide, excessive gas makes the bag burst open. Use our one-way valve, will allow packing bags of carbon dioxide to be released at the same time does not get oxygen in our bags , contaminated packaging bags of coffee.. 2) Pet food -- packaging bag using a one-way degassing valve, you can effectively keep the pet food fresh health, prevent gas or water into the bag to prevent whole bags of carbon dioxide in the bag burst. 3) Medical Device -- Using a one-way degassing valve placed on the bag of medical device, can prevent gas or water into the Medical Device bag, playing the role of quality of the medical device, prevent deterioration of medical device in the bag, protection of the quality and efficacy of the medical device. 4) Granulate Material -- A certain amount of air is usually trapped after products are packaged in commercial-size bags. The air results in a loss of stability and potential slippage of the pouches stacked on the pallet. The use of our one-way degassing valves enhances on-pallet stability and optimizes the storability of the stand up pouches. Product Description: 1. Rong Yi features: Rong Yi company is a mold develop, production, sales ( all in one ) of professional plastic coffee valve manufacturer. Our company is the only one company focused in coffee valve manufacturer at the market. 2. Material advantage: Due to the one-way degassing valves are widely used in food packaging bag or container, we produced with the raw materials passing SGS and ROHS instruction. Also our product had approved by United States FDA certification. 3. Function advantage: One-way degassing valve can prevent outside air enter the coffee bag, and release air pressure from the container or packing of product 4.Rong Yi guarantee: In the process of production, we concerned more about food safety and healthy. So we keep on improveing the best quality of one way degassing valve.To hoped that all partners with Wojin have perfect product and reliable supplier