Spirax Sarco Needle Valves

A needle valve is a mechanical device that starts, stops, or regulates the circulation of liquids or gases by means of a conical stem used as a gate.
A valve is a device that opens, closes, or regulates the passage of fluid through a pipe in a machine, device, or instrument.
Valves and instrumentation include valves that regulate, allow, or stop the flow of fluids in industrial facilities or machines, as well as devices that measure and control different variables in these processes.