1. Flame proof and fire-retardant: the main components are made of copper alloy, which is non combustible material, and will not produce sparks even if they collide with solid particles in high-speed airflow. Therefore, the valve has an effective performance of fire prevention and retarding.

2. Safe and reliable: the valve is equipped with dust-proof, waterproof and oil stain proof devices. All valves in contact with oxygen are subject to strict degreasing and oil prohibition measures before assembly. The packing material is PTFE, which can ensure safety and reliability in use.