221-2000 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator, 0-50 PSI

Rugged Reliability for Specialty Gas Delivery

When your work demands more than just a standard industrial regulator, the Miller Smith 221-20-00 Silverline High Purity Regulator steps up to the plate. Designed for professionals who handle specialty gases and mixtures, this two-stage regulator takes the guesswork out of pressure control. If you have ever struggled with delivery pressure climbing or dropping as your tank runs low, you know the value of a two-stage system. This unit automatically compensates for the drop in cylinder pressure, giving you a rock-solid flow from the moment you crack the valve until the tank is ready for a swap. It is rated for a delivery range of 0-60 PSI, making it perfect for applications requiring lower, precise pressures.

Durability is a key feature of the Silverline series. The regulator is machined from solid brass bar stock, making it tough enough for shop environments, but it is also plated on the body, bonnet, and gauges. This plating keeps the tool looking clean and protects it from corrosion and scratches over years of service. The gauges are large—2-1/2 inches—so you can read your tank and line pressure at a glance without squinting. Inside, a stainless steel diaphragm replaces the standard rubber components found in cheaper regulators. This means better sensitivity and no risk of the diaphragm contaminating your gas stream, which is critical when working with high-purity mixtures.

Installation and maintenance are straightforward. The unit comes with 1/4" FNPT connections, allowing for versatile plumbing options into manifolds or custom setups. It also features a filtered seat that stops debris from getting into the critical sealing areas, preventing leaks and creeping pressure. A built-in safety relief valve adds an extra layer of protection for your equipment. Whether you are setting up a calibration station, a purging rig, or a specialized welding shield gas mix, the Miller Smith 221-20-00 delivers the consistency and quality you expect from the Miller brand.