Needle valves are control valves. They have a small opening or port with a needle shaped plunger that allows for great precision. They are used for a constant, low flow rate. The plumbing, automotive, and chemical engineering fields have use for needle valves. We carry high pressure needle valves which are suitable for up to 10,000 PSI. Stainless steel needle valves, carbon steel needle valves, brass needle valves, can all be found listed below.