Back Pressure Valve

YB7 Back Pressure Valve is used to the applicable conditions that the common controlling system can not be used, as a kind of special pressure control valves, it commonly match with automatic recirculation valve to protect pump system. It is used to control upstream pressure, enables to achieve factory technological setting pressure value and system required pressure value, preventing vaporization and corrosion phenomena. Carefully matched technological condition between automatic recirculation valve and YB7, ensure pump get the best protection, guarantee long-term stability for safe operation system.