Features and advantages
With a cut-off valve, silent check valve, balance valve, anti freezing and anti vacuum qi stagnation, signal detection and other 5 kinds of functions.
The end of the seat can be split, the bottom of the connection position makes the installation of the valve and pipeline docking easier.
The built in bypass valve is convenient for the main channel drainage, which can effectively prevent the freezing damage and the vacuum negative pressure zone at the outlet of the pump.
External thread connection for flow regulation.