221-0006 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 350

Rugged Reliability with Miller Smith Silverline

The Miller Smith 221-00-06 Silverline Regulator represents the gold standard in high-purity gas control equipment. Built by one of the most trusted names in the industry, this two-stage regulator is designed to perform in environments where consistency and durability are non-negotiable. Whether you are managing calibration mixtures or supplying carrier gases for industrial applications, the Silverline 220 Series delivers unwavering performance.

At the core of this regulator is its two-stage design. Unlike single-stage regulators that may allow delivery pressure to rise as the cylinder pressure drops (a phenomenon known as the decaying cylinder effect), this unit maintains a constant output pressure throughout the life of the cylinder. This feature is essential for processes requiring stable flow rates over extended periods. The regulator is equipped with a CGA 350 fitting, making it compatible with specific flammable and high-pressure gas mixtures like hydrogen and methane.

Construction quality is a standout feature of the 221-00-06. It is machined from solid brass bar stock for maximum strength and then finished with a high-quality plating on the body, bonnet, and gauge cases. This plating not only resists corrosion but also makes the unit easy to clean and maintain. The internal components are equally robust, featuring a stainless steel diaphragm that provides superior sensitivity and longevity compared to standard neoprene diaphragms. This metal diaphragm is crucial for maintaining the purity of the gas stream, as it does not off-gas or absorb contaminants.

Operators will appreciate the user-friendly design, which includes large, clear 2-1/2 inch gauges for monitoring tank and line pressure. The regulator also features a filtered seat to prevent debris from damaging the internal sealing mechanism, ensuring a long operational life. With a delivery pressure range of 0-60 PSI and the ability to handle inlet pressures up to 3500 PSI, this Miller Smith regulator is a heavy-duty solution for precise gas regulation tasks.