needle valves are designed to regulate flow

needle valves are designed to regulate flow to an instrument or other industrial application.  PIC Gauges needle valves are rugged enough for the oil & gas market, and suitable for most industrial applications.  Available in a wide variety of connections in 316 stainless steel and carbon steel bodies, PIC Gauges has most common configurations in stock for immediate shipment.
stainless steel needle valves are suitable for most process applications, however "exotic" materials are also available.