Gate valve is one of the common block valves, which is mainly used to connect or disconnect medium in pipeline, and not suitable for adjusting
flow of medium. Basic types such as: XD.Z41S pattern and XD.Z45XS pattern.

Characteristics of configuration
1. XD.Z41S pattern is full-lining pattern, which contact with medium directly, and all lined macromolecule material can meet every requirement
of working status.
2. XD.Z45S pattern is body, cover, wedge disc lined with plastic, up to requirement of erosive-resisting and wearing-resisting.