Brass Inline Easy Read Needle Valve, Female 1/4-18 NPT Ports, Up to 10.00 GPM & 2000.00 PSI

Brass is actually the right call for pneumatic systems and lower-pressure hydraulic work. The 2000 PSI rating covers your higher-end use cases, but brass valves in this lineup are specifically noted for pneumatic service and lighter hydraulic applications. The Viton o-ring and Teflon washer seal hold up well across a wide temperature range too, from -15°F all the way up to 400°F, so everyday pneumatic duty is well within what this valve handles comfortably.

Adjustments can be made under pressure on this easy read needle valve, and it is meant for controlled flow in both directions. Once you get the setting where you want it, the set screw lets you lock it in.

Brass construction makes it a solid fit for pneumatic systems and lower pressure hydraulic applications. The 2000 PSI max and 10 GPM flow rating cover a good range of those uses. Just keep in mind that for higher pressure hydraulic work, steel body valves are the better call. For air lines and moderate hydraulic setups, this one handles it fine.

This needle valve allows for accurate adjustments within a small fraction of a turn, or one full turn per color marking, so you should be able to dial in a very precise flow. Plus, you can lock your setting in place with the set screw.