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221-0002 - Miller Smith Silverline 220 Series High Purity CO2 Regulator, Two Stage, 0-50 PSI

Packaging: 1 per ea
$1,001.11/ea $605.81/1 per ea only $605.81/eaSave 39%

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OVERVIEW

Reliable CO2 Delivery for Critical Applications

When your work requires more than just a standard flow, the Miller Smith 221-00-02 Silverline Regulator steps up to the plate. While built for high-purity analytical work, this two-stage regulator is a powerhouse for any professional needing absolute consistency in their Carbon Dioxide (CGA 320) supply. If you are running specialized shielding gas mixes or operating equipment that is sensitive to pressure spikes, the two-stage mechanism is a game-changer. It automatically compensates for the drop in cylinder pressure as you work, ensuring that the flow you set at the start of the day is the exact same flow you get when the tank is nearly empty.

The build quality reflects Miller Smith's reputation for toughness. The entire unit—body, bonnet, and gauges—is plated to resist corrosion and keep the tool looking and functioning like new, even in shop environments. Unlike standard regulators with rubber diaphragms that can degrade over time, this unit utilizes a stainless steel diaphragm. This feature provides a snappy, accurate response to pressure changes and ensures that the regulator doesn't introduce any contaminants into your gas line, which is vital for high-quality welds or sensitive pneumatic tools.

Safety and ease of use are built-in. The regulator includes a capturable preset safety relief valve to protect against over-pressurization. The large 2-1/2 inch gauges are clear and easy to read from a distance, allowing you to monitor your tank levels and delivery pressure (0-50 PSIG) at a glance. Whether you are setting up a calibration station or need a premium regulator for a critical CO2 application, the Silverline 221-00-02 delivers the performance you can trust.

Additional Information
Gas Service:Carbon Dioxide (CO2)
CGA Connection:CGA 320
Stage Type:Two Stage
Delivery Pressure Range:0-50 PSIG
Outlet Connection:1/4" FNPT
Max Inlet Pressure:3500 PSIG
Series:Silverline 220
Diaphragm Material:Stainless Steel
Body Material:Plated Brass Bar Stock
Gauge Size:2-1/2 inch
Application:High Purity Analytical, Gas Chromatography
Packaging Description:1 per ea

INCLUDED

  • 1x Miller Smith 221-00-02 Silverline Two Stage Regulator
  • 1x Set of 2-1/2" Single Scale Gauges
  • 1x Built-in Safety Relief Valve

APPLICATIONS

  • Gas Chromatography (GC)
  • Thermal Conductivity Detectors
  • Flame Ionization Detectors
  • Electron Capture Detectors
  • Calibration Gas Mixtures
  • High Purity Carrier Gases
  • Precision CO2 Delivery

FAQ

A two-stage regulator reduces cylinder pressure in two steps. This ensures a constant delivery pressure regardless of the fluctuating inlet pressure as the cylinder empties, providing superior stability compared to single-stage models.

The CGA 320 fitting is the standard connection for Carbon Dioxide (CO2) cylinders in the United States.

A stainless steel diaphragm prevents gas contamination (off-gassing) and provides more precise pressure control compared to rubber or neoprene diaphragms, making it ideal for high-purity analytical applications.

This regulator is designed to deliver a consistent pressure range of 0-50 PSIG.

No, the Miller Smith 221-00-02 is recommended for high purity, non-corrosive pure gases and mixtures. It has a brass body, which may react with corrosive agents.

The regulator features a 1/4" FNPT (Female National Pipe Thread) outlet connection.

Yes, it includes a built-in capturable preset safety relief valve to protect components from over-pressurization.

Yes, the design allows the regulator to withstand vacuums generated during purging operations without damage.