Pressure gauge needle valve

Pressure gauge needle valve refers to a needle valve with one end suitable for connecting various pressure gauges. It is mainly used to observe the pressure of pressure vessels and pipelines, and can effectively cut off the channel between pipeline equipment and pressure gauges. The structural form of pressure gauge needle valves can be diversified according to the actual needs of instrument pipelines, including straight through type, angle type, etc. The working principle of the pressure gauge needle valve produced by Shanghai Meiyanyi Pump Valve is to control the fluid through a pointed conical opening and closing element. When the needle valve is closed, the opening and closing member completely closes the flow channel to form a seal; When the needle valve is opened, the opening and closing member gradually opens the valve port, and the fluid can gradually pass through. The opening and closing component of a needle valve is the valve stem, which can be directly driven to move by a handwheel to achieve rotational opening and closing.