Feature

Our battery rubber vent caps' raw material are blended reasonably and tested according to designated procedures, they will be made by good equipment and high-new technology, with each performance index fully satisfying the requirements for various batteries.

Due to adding the enhancing ring over edge of the vent cap, the strength and contraction force is thus increased as to reduce the pressure difference between valve opening pressure and closing pressure, which not only shortens the deformation time of the edge, but also decreases its deformation degree, thereby extending the service life of the battery rubber vent cap.

We can design suited size and opening&closing pressure according customer's battery type and requirements of use.

High Stability

Good flexibility and elasticity

High Acid Resistance

High-Temperature Resistance

Premium Hermetically Sealed Performance

Tracking Quality from Raw Material to Finished Product

Guarantee 100% Qualified before delivery

Customized Design Depending On Your Demand