The copper gate valve is generally flanged, and the method is the same as the "flange valve". If you encounter a gate valve with an inner wire (usually a small diameter), then install the outer wire directly on the pipeline, and the installation method is the same as the "screw valve"; The screw valve is generally an outer wire, so you need to install an inner wire directly on the pipeline, and the inner wire is directly connected to the PE pipe by hot melt, and then screwed to the screw valve; because the flange valve has its own method on the valve body. flange, then you only need to add a support ring and a flange of the corresponding specification to the PE pipe, and you can install it. The support ring needs a hot melt connection, and the flange piece is bolted to the flange valve.
