According to the special requirements of lithium battery raw materials, the  valve has been specially designed:

-valve plate material 304, surface coated with teflon (PTFE/ETFE/ectfe/ceramic)

-totally enclosed silicone lining is used for internal sealing

-All leakage parts of the drive are made of 304 materials

The product can completely avoid the contact of harmful metals such as zinc and copper with materials, and ensure the purity and pollution-free of lithium battery raw materials.