220-4000 - Miller Smith Silverline 220 High Purity Analytical Regulator 0-15 PSI

Reliable High-Purity Gas Management

When your shop or laboratory requires absolute precision in gas delivery, the Miller Smith 220-40-00 Silverline Regulator is the professional's choice. While standard welding regulators are built for general shielding gases, the Silverline series steps up to the plate for high-purity applications. Whether you are managing carrier gases for a laser setup, running calibration mixtures, or operating sensitive analytical instruments like gas chromatographs, this regulator delivers the consistency you need. Its two-stage architecture is a game-changer for long-duration processes; it maintains a rock-steady 15 PSI delivery pressure even as your supply tank pressure drops, ensuring your process parameters never drift.

Durability meets precision in the 220-40-00. The body is machined from solid brass bar stock and fully plated for a clean, professional look that resists corrosion. Inside, a stainless steel diaphragm provides the sensitivity needed for low-pressure control while eliminating the risk of contamination associated with elastomeric diaphragms. This makes it perfect for thermal conductivity, flame ionization, and electron capture applications where even trace impurities can ruin a result. The regulator is also designed to handle the rigors of tank change-outs and system purging, capable of withstanding vacuum conditions without damage.

Miller Smith has equipped this unit with user-friendly features including large 2-1/2 inch gauges that make monitoring inlet and delivery pressure simple. The 1/4" FNPT connections allow for flexible plumbing into your specific manifold or tubing system. Backed by the quality assurance of the Miller brand, this Silverline regulator offers the reliability and performance required for critical gas delivery tasks where there is no room for error.