1. The packing can easily obtain a good sealing effect through the locking force of the packing gland, and effectively eliminate the leakage of the medium from the valve stem position

2. The disc and stem are designed as an integrated structure, making the whole valve structure compact, and there are cone-shaped steps at the stem, so that the valve can achieve the upper sealing effect in the fully open state

3. When the valve is closed, pressure must be applied to the valve disc to make the sealing surface of the valve disc closely fit with the sealing surface of the valve seat, thereby preventing the flow of media. Its forced sealing design principle makes the sealing surface not easy to wear and bruise