Skip to Main Content

122-0009 - Miller Smith 122 Series Silverline Two-Stage Inert Gas Regulator 0-100 PSI

Packaging: 1 per ea
$755.51/ea $500.10/1 per ea only $500.10/eaSave 34%

Usually ships within 3-5 business days

SKU: MIL122-0009 Categories: ,

OVERVIEW

Precision Control for Inert Gas Applications

The Miller Smith 122-00-09 Silverline Series General Purpose Two-Stage Regulator is engineered for professionals who demand stability and precision in their gas delivery systems. Designed specifically for inert and non-corrosive gases such as Nitrogen, Argon, and Helium, this regulator features a CGA 580 inlet connection, making it a standard choice for laboratory, testing, and general industrial maintenance applications.

The defining feature of the 122-00-09 is its two-stage design. Unlike single-stage regulators that allow delivery pressure to rise as the cylinder pressure decays (a phenomenon known as the "rising characteristic"), this unit reduces pressure in two steps. The first stage lowers the high cylinder pressure to a consistent intermediate level, while the second stage regulates it down to your precise working pressure (0-100 PSIG). This ensures that your output remains rock-steady from a full cylinder down to an empty one, providing reliable performance for critical tasks.

Robust Construction and Reliability

Durability is at the core of the Silverline Series. The body is machined from brass bar stock, a method that produces a denser, stronger material than traditional forging or die-casting. This construction minimizes porosity and ensures a leak-tight seal, which is critical for maintaining gas purity. The body, bonnet, and gauges are plated to resist corrosion and wear, extending the lifespan of the unit in harsh shop environments.

Advanced Features

  • Filtered Seat: An integrated filter protects the seating area from particulate contamination, a common cause of regulator failure, ensuring extended service life.
  • Large Diaphragm: The 1-7/8" diaphragm provides excellent sensitivity, allowing for fine adjustments to the delivery pressure.
  • Clear Readability: Large 2-1/2" gauges allow operators to easily monitor both cylinder contents and delivery pressure at a glance.

Whether used for purging piping systems, blanketing tanks, or supplying analytical instruments, the Miller Smith 122-00-09 delivers the consistency and quality required for high-stakes environments.

Additional Information
CGA Fitting:cga580
Item:Regulator
Max Inlet:3500psi
Max Outlet:100psi
Used On Which Gas:Argon or Nitrogen, Inert Gases
Series:Silverline 120
Body Material:Brass Bar Stock
Outlet Connection:1/4" FNPT
Gas Service:Argon, Helium, Inert, Nitrogen
----- new values below ----
Series:Silverline 120
Stages:Two-Stage
Body Material:Brass Bar Stock
Diaphragm Size:1-7/8 Inch
Gauge Size:2-1/2 Inch
Outlet Connection:1/4" FNPT
Gas Service:Inert, Nitrogen, Argon, Helium
Brand:Miller
CGA Fitting:cga580
Item:regulator
Max Inlet:3500psi
Max Outlet:100psi
Used On Which Gas:inert-gases, argon-or-nitrogen

INCLUDED

  • 122-00-09 Two-Stage Regulator
  • Instruction Manual

APPLICATIONS

  • Laboratory Gas Control
  • Industrial Maintenance Shops
  • Pipe Purging (Argon/Nitrogen)
  • Component Testing
  • Tank Blanketing
  • Pneumatic Tool Operation (Clean Air/Nitrogen)

FAQ

A two-stage regulator reduces cylinder pressure in two steps, providing a constant delivery pressure even as the cylinder empties. A single-stage regulator's delivery pressure may fluctuate (rise) as the tank pressure drops.

This regulator comes with a CGA 580 inlet, making it compatible with inert gases such as Argon, Nitrogen, and Helium. It is not for use with Oxygen or Flammable gases.

The regulator features a 1/4" FNPT (Female National Pipe Thread) outlet connection, allowing for the attachment of various fittings or hose barbs.

While the regulator internals are compatible with CO2, the CGA 580 connection is not. CO2 cylinders typically use CGA 320. You would need a different regulator or an approved adapter, though using the correct CGA fitting is always recommended.

The Miller Smith 122-00-09 is rated for a maximum inlet pressure of 3500 PSIG.

Yes, as a Miller Smith product, it is covered by the Miller True Blue Warranty. Please check the specific warranty documentation for duration and terms.

No, this is a general-purpose brass regulator intended for inert and non-corrosive gases only. Corrosive gases require stainless steel or Monel regulators.

This specific model (122-00-09) has a delivery pressure range of 0-100 PSIG.