Control fluid flow and pressure during testing well opening flow;

Five valve (gate valve) modular structure is adopted, which is specially used for oil and gas well testing;

Standard double nozzle system: a fixed throttle valve with pressure relief valve and a manual throttle valve are installed on both sides;

The gate valve adopts full bore and two-way metal seal design, with long service life;

The nozzle is lined with cemented carbide, with strong wear and corrosion resistance.