Airgas Y12-C445D660 Specialty Gas Regulator 4000

Airgas Y12-C445D660 Specialty Gas Regulator is a two-stage, high-purity stainless steel regulator designed for specialty gas cylinders, delivering precise, low-fluctuation pressure from high cylinder pressures to a controlled delivery up to 100 psi. Built from 316 stainless steel and configured with a 1/4 in FNPT connection and threadless seat, it supports clean-gas service and CGA-cylinder compatibility, helping maintain gas purity in analytical workflows. The regulator is rated for inlet pressures up to 4,000 psi, enabling use with high-pressure cylinders while maintaining stable outlet pressure under varying load. Its two-stage design reduces pulsations and provides smoother regulation compared with single-stage units, which is important for sensitive instrumentation. The unit's CGA-compatible configuration supports straightforward cylinder hookup, and the stainless steel construction resists corrosion and contamination for long service life in demanding lab environments.