Feature: 1. The check valve nozzle is designed with a pagoda-shaped slot, which is non-slip and non-toxic, has good airtightness. 2. The one-way check valve is easy to install, convenient to unscrew and replace, and has good adsorption performance. 3. 25-135 normal performance, it has high temperature resistance and corrosion resistance. 4. This one-way check valve is widely used in automobile parts, machinery industry, household appliances, agriculture, etc. 5. Suitable for fluid system to prevent liquid backflow or pneumatic system to prevent compressed air backflow. Specification: Item Type: Check Valve Shell Material: Nylon Sealing: Fluorine Rubber Diaphragm Spring: SUS316 Spring Application: Widely used in automobile parts, machinery industry, household appliances, agriculture, etc. Function: Suitable for fluid system to prevent liquid backflow, or for pneumatic system to prevent compressed air backflow Package List: 1 x Check Valve