Designed for incorporation into manifold assemblies, miniature cartridge needle valve allows precise flow control due to 56 threads/in. adjustment and 3 deg taper of needle. Adjusted flow remains stable, even during temperature fluctuations as needle and valve seat are both stainless steel. With maximum inlet pressure of 300 psi, valve controls flow from 0-1 scfm at 50 psi. Metal-to-metal seal provides positive shutoff down to negative pressure/vacuum of 25 in. Hg.