Good price ATO 1/2" stainless needle valve is a compact 2-way needle valve made of 304 stainless steel and the temperature range is -20 to max. 180 °C. This needle valve can be used as a reliable shut-off valve, or to accurately control flow rates of clean gases or fluids.
Tips: How does a needle valve control pressure?
An instrument needle valve uses a tapered pin to gradually open a space for fine control of flow. The flow can be controlled and regulated with the use of a spindle. A needle valve has a relatively small orifice with a long, tapered seat, and a needle-shaped plunger on the end of a screw, which exactly fits the seat.