1. Sealing emergency grease injection rescue: due to foreign matter in the medium or fire causing the valve seat seal to fail unexpectedly, the grease injection valve provides a quick connection with the grease injection gun, which can easily and quickly inject the sealing grease into the valve seat sealing part to alleviate leakage .
2. Reliable stem sealing and low operating torque: In addition to the standard sealing ring, the packing gland is also equipped with an "O" type sealing ring. The double sealing ensures the reliability of the stem sealing; the additional graphite packing and Sealing grease injection minimizes valve stem leakage after a fire. The valve stem sliding bearing and thrust bearing make the valve easy to operate.
3. Full diameter or reduced diameter: Full diameter or reduced diameter structure can be selected according to needs. The flow aperture of the full-bore valve is the same as the inner diameter of the pipeline, which is convenient for pipeline cleaning.
4. The valve stem can be lengthened: According to the needs of installation or operation, the valve stem can be lengthened. The extended stem ball valve is especially suitable for occasions where pipelines need to be buried in the ground, such as city gas. The size of the lengthened stem is determined according to customer needs.
5. Flexible operation: The valve seat and stem bearing with small friction coefficient and good self-lubricity are adopted, which greatly reduces the operating torque of the valve. Therefore, even if no sealing grease is provided, the valve can be operated flexibly for a long time.
