Supelco Micro Metering Valve 1/16

The Supelco P-446 is described as a Micro Metering Valve designed for use with 1/16 inch Outer Diameter (OD) tubing. Metering valves like the P-446 typically achieve fine flow adjustment through a mechanism such as a fine-threaded stem with a tapered needle that moves relative to a seat, thereby minutely changing the orifice size through which the fluid passes. This allows for very gradual increases or decreases in flow.